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Quality of life (QoL) is a vital aspect of postdonation amongst donors, especially elderly donors. There is a limited study from India assessing the QoL amongst young live donors (YLD), and no study has been done on the elderly sub-group. This study was undertaken to determine the donors' sociodemographic and essential clinical characteristics, as well as to study the QoL of the live kidney donors and compare the QoL of elderly and young donors. Baseline demographic characters taken from the RTR registration register and SF-36 questionnaire were used to assess the QoL at baseline, discharge post-transplant, 1 month, 3 months, 6 months, and 12 months through an interview. We found that the QoL of the elderly donors in postkidney donation returns to baseline at the end of 6 months in all dimensions of the QoL amongst the North Indian population. The physical function is better amongst elderly donors at the end of 3 and 6 months than among young donors. The study's findings must be propagated to increase the donation of kidneys to older people. This is the first of its kind from India, necessitating further multicentric study. [ABSTRACT FROM AUTHOR]

• This is the first study to assess brain rs-FC in older masters athletes (MA). • Higher rs-FC within cognitive regions in MA compared to controls. • Higher rs-FC within motor regions in MA compared to controls. • Less rs-FC between cognitive and motor regions in MA compared to controls. • Aging-related rs-FC segregation patterns are attenuated in top-ranked athletes. Aging is characterized by a decline in physical and cognitive functions, often resulting in decreased quality of life. Physical activity has been suggested to potentially slow down various aspects of the aging process, a theory that has been supported by studies of Masters Athletes (MA). For example, MA usually have better cognitive and physical functions than age-matched sedentary and healthy older adults (OA), making them a valuable model to gain insights into mechanisms that promote physical and cognitive function with aging. The purpose of this study was to identify differences in resting-state functional connectivity (rs-FC) of motor and cognitive regions between MA and OA and determine if these differences in the resting brain are associated with differences in cognitive and physical performance between groups. Fifteen MA (9 males) and 12 age-matched OA (six males) were included. rs-FC images were compared to identify significant between-groups differences in brain connectivity. There was higher connectivity between the cognitive and motor networks for the OA group, whereas the MA group had stronger connectivity between different regions within the same network, both for the cognitive and the motor networks. These results are in line with the literature suggesting that aging reduces the segregation between functional networks and causes regions within the same network to be less strongly connected. High-level physical activity practiced by the MA most likely contributes to attenuating aging-related changes in brain functional connectivity, preserving clearer boundaries between different functional networks, which may ultimately favor maintenance of efficient cognitive and sensorimotor processing. [ABSTRACT FROM AUTHOR]

Traditional methods for assessing lower body strength and balance, particularly in older individuals, lack objective and comprehensive analysis. The Up-Down Hop Test is widely used, yet leveraging mobile device sensors, specifically accelerometers and gyroscopes, can enhance the effectiveness of the Up-Down Hop Test by providing an objective evaluation of lower body strength, balance, and neuromuscular control. This study involved attaching mobile devices to participants during the Up-Down Hop Test. Data from the sensors were analyzed to assess patterns of body imbalance and fatigue, focusing on older participants. Integrating mobile sensor data offered insights into the participants' physical performance, revealing specific patterns of imbalance and fatigue. Although traditional assessment methods can observe these patterns, they lack measurability and auditability when evaluating the physical performance of older adults. The experimental results, obtained from analyzing data from mobile device sensors during the Up-Down Hop Test, revealed patterns of imbalance. These findings can be utilized in health monitoring and targeted intervention scenarios, specifically those aimed at enhancing physical performance and preventing injuries. [ABSTRACT FROM AUTHOR]

This study aimed to investigate the relationship between daytime sleepiness and mortality risk among older adults. The moderating effects of sex and physical function were examined. This 9-year follow-up study was conducted with community-dwelling individuals aged ≥65 years. Daytime sleepiness was evaluated using the Epworth Sleepiness Scale (ESS). Exploratory factor analysis (EFA) was used to examine the ESS factors. Handgrip strength was measured to assess physical function, and the highest quartile was defined as good muscle power. Cox regression analysis was used to estimate the 9-year all-cause mortality risk. The interaction terms were examined to evaluate their moderating effect. In total, 2588 individuals participated in the study. The EFA explored two factors: the passive factor (PF) and the active factor (AF). After controlling for various covariates, the cutoff-defined daytime sleepiness (ESS≥11), total raw scores, and factor scores of the ESS all failed to predict mortality risk. The 3-way interaction terms showed statistical significance in terms of [sex × PF × muscle power (p = 0.03)] but not for [sex × AF × muscle power (p = 0.11)]. Specifically, PF predicted mortality risk in women with good muscle power (hazard ratio (HR): 1.48; 95 % confidence interval (CI): 1.04–2.10), which is female-specific. In contrast, AF predicted mortality risk only in men with good muscle power (HR: 1.35; 95 % CI: 1.02–1.78). The ESS-measured daytime sleepiness in older adults is multidimensional. The mortality risk for each dimension was determined based on sex and physical function. • The Epworth Sleepiness Scale (ESS) had dual construct in older adults. • Sex- and muscle power modified mortality risk conferred from daytime sleepiness. • Dimensions of the ESS conferred sex-specific mortality risk. [ABSTRACT FROM AUTHOR]

Deficits in physical function that occur with aging contribute to declines in quality of life and increased mortality. There has been a growing interest in examining associations between physical function and neurobiology. Whereas high levels of white matter disease have been found in individuals with mobility impairments in structural brain studies, much less is known about the relationship between physical function and functional brain networks. Even less is known about the association between modifiable risk factors such as body mass index (BMI) and functional brain networks. The current study examined baseline functional brain networks in 192 individuals from the Brain Networks and mobility (B-NET) study, an ongoing longitudinal, observational study in community-dwelling adults aged 70 and older. Physical function and BMI were found to be associated with sensorimotor and dorsal attention network connectivity. There was a synergistic interaction such that high physical function and low BMI were associated with the highest network integrity. White matter disease did not modify these relationships. Future work is needed to understand the causal direction of these relationships. [ABSTRACT FROM AUTHOR]

The Japanese Orthopaedic Association (JOA) introduced the concept of locomotive syndrome (LS), which indicates a decline in mobility function by musculoskeletal disorders with new 3-staged category. Additionally, sarcopenia indicates a decline in the quantity and/or quality of skeletal muscle. However, the relationship between low back pain (LBP) and LS or sarcopenia in older people has not been sufficiently understood. This study aimed to investigate the association between them through a cross-sectional locomotorium survey. A total of 302 participants were drawn from the aquatic exercise participants in a rural area of Japan. The body mass index, body fat percentage, skeletal muscle mass index (SMI), spinal inclination angle (SIA), grip strength, timed up-and-go test (TUG), and maximum stride of the participants were measured. LBP and LBP-related quality of life (QOL) were evaluated using the Oswestry Disability Index (ODI), visual analogue scale (VAS) of LBP, and the Short-Form 8 (SF-8). Associations between the investigating parameters and sarcopenia or LS were analyzed. There were no significant differences in the findings except grip strength between the non-sarcopenia and sarcopenia groups. However, the LS group showed significantly larger SIA, higher ODI, higher VAS of LBP, lower physical component score (PCS) of the SF-8, longer time in TUG, and lower value in maximum stride than the non-LS group. In addition, the ODI and PCS of the SF-8 significantly deteriorated as the LS stage progressed, and the GLFS-25 score was significantly correlated with ODI (r = 0.706, p < 0.001) and PCS (r = −0.643, p < 0.001) scores. LBP, LBP-related QOL, and physical performance were found to be significantly associated with LS, not sarcopenia, with LBP-related QOL and physical function being closely correlated with 3-stage categories of LS. Thus, these results suggested that LBP is a key factor for LS prevalence. [ABSTRACT FROM AUTHOR]

The burden of osteoarthritis (OA) has increased steadily due to an aging population, increasing life expectancy, obesity and lifestyle factors. Total hip replacement has become one of the most prevalent and successful operations globally and it is projected that demand will continue to grow as the incidence of OA continues to increase. Patients undergoing the operation expect much-improved function and pain relief but also increasingly need to return to work postoperatively, especially given the growing demand for the procedure and the encouragement of older people to continue working by most governments in the developed world. This review provides an overview of function and employment outcomes after hip arthroplasty. Despite the generally good success rate, some patients do not attain good functional outcomes and it is important that we develop ways to identify these patients preoperatively. We describe the effect of demographic, clinical and other factors on functional outcomes, as well as trajectories of physical function and pain recovery beyond the first few weeks after total hip replacement. Regarding employment outcomes, many people in work preoperatively are likely to resume to work after recovery; however, patients feel that they lack guidance from clinicians about returning to work postoperatively. Our review encompasses factors associated with return to work, timing of return to work, and potential temporary or permanent limitations that people might experience at work depending on type of employment. [ABSTRACT FROM AUTHOR]

The aging population prompts studying risk factors and markers to predict healthy aging. Telomere length is a promising candidate for assessing various age-related traits. To investigate the association between physical performance and telomere length. We enrolled 323 older Mexican adults from the "Cohort of Obesity, Sarcopenia, and Frailty of Older Mexican Adults" affiliated with the Instituto Mexicano del Seguro Social and assessed their physical performance using the Short Physical Performance Battery, dividing participants into low (≤7) and high (>7) groups. Absolute telomere length was determined by qPCR, and individuals were classified into short (≤4.22 kb) and long (>4.22 kb) groups. We calculated the mean and adjusted mean, considering sex and age, among others, with 95% CI. We estimated the effect size between physical performance and telomere length using Cohen's d for unequal group sizes and calculated the odds ratio for physical performance based on telomere length. Participants with low physical performance had significantly shorter telomeres (mean 4.1 4.4 4.7 kb, adjusted mean 3.5 4.0 4.5 kb, p <0.001), while those with high physical performance exhibited longer telomeres (mean 5.5 5.7 5.9 kb, adjusted mean 4.7 5.3 5.8 kb, p <0.001), with a medium-to-high telomere length effect size (d = 0.762). The odds of low physical activity increased 2.1 3.6 6.1 -fold per kb of telomere attrition (adjOR 1.7 3.3 6.3 , p <0.001). Decreased physical function is associated with shorter telomere length. Absolute telomere length presents a promising biomarker for distinguishing between healthy and unhealthy aging, warranting further investigation. [ABSTRACT FROM AUTHOR]

Food insecurity has been associated with mobility difficulty (MD) in old age. However, there is a scarcity of research on this topic from low- and middle-income countries, while the bio-psychological factors underlying this association are largely unknown. We investigated the food insecurity-MD link in Ghana and explored how sleep, anxiety, loneliness, and physical activity (PA) mediate the association. Community-based, representative cross-sectional data from the Aging, Health, Well-being, and Health-seeking Behavior Study were analyzed (N = 1201; M age = 66.5; women = 63%). MD was assessed with items from the SF-36 of the Medical Outcomes Study. We assessed food insecurity with items on hunger and breakfast-skipping frequency due to lack of food and resources. Adjusted OLS and mediation models via bootstrapping technique evaluated the associations. Results revealed the expected association between food insecurity and MD, such that greater food insecurity was significantly and positively associated with MD across paths (from β = 0.33 to β = 0.42, p <.001). Analyses of indirect effects showed that sleep problems (27.8%), anxiety (15.5%), loneliness (17.5%), and PA (18.0%) mediated the association between food insecurity and MD. Cross-level interactions revealed that food insecurity significantly modified the link between each mediator and MD. Our data provide novel evidence that bio-psychological mechanisms may underlie the food insecurity-MD link and should, therefore, be considered relevant targets for interventions to prevent/manage MD in later life. • Roles of biopsychosocial factors in food insecurity (FI)-mobility link is lacking. • FI increased mobility difficulty (MD) across all paths (β = 0.33 to β = 0.42, p <.001). • Sleep, anxiety, loneliness, and physical activity mediated the FI-MD association. • Significant cross-level interactions of FI and mediators on MD were observed. • Efforts to address FI-related MD should consider managing biopsychosocial factors. [ABSTRACT FROM AUTHOR]

Older adults with multiple sclerosis (MS) present with low physical activity participation, cognitive and ambulatory dysfunctions, and compromised quality of life (QOL). We propose a NIH Stage-I, randomized controlled trial (RCT) that examines the feasibility and efficacy of a 16-week theory-based, remotely-delivered, exercise training program for improving cognitive and physical functions in older adults with MS who have moderate mobility disability without severe cognitive impairment. This Stage-I study utilizes a parallel-group RCT design. Participants (N = 50; age ≥ 50 years) will be randomly assigned into exercise training (combined aerobic and resistance exercise) or active control (flexibility and stretching) conditions. The conditions will be undertaken within a participant's home/community over a 16-week period, and monitored remotely and supported by Zoom-based chats guided by social cognitive theory (SCT) via a behavioral coach. Participants will receive training manuals and equipment, one-on-one behavioral coaching, action-planning calendars, self-monitoring logs, and SCT-based newsletters. The primary outcomes include feasibility (e.g., recruitment and retention rates), exercise behavior and physical activity; other outcomes include physical function (lower-extremity function, mobility, walking), cognition (processing speed, learning and memory, executive function), MS symptoms, QOL, and vascular function. We will collect outcome data at baseline (Week 0), post-intervention (Week 16), and follow-up (Week-32). Data analysis will follow intent-to-treat principles using linear mixed-effects models. This Stage-I trial adopts an innovative approach for exercise training via telerehabilitation and is convenient and accessible for older adults with MS. If successful, the study will provide foundations for future research using remotely-delivered exercise intervention for managing the consequences of aging with MS. Trial Registration Number: NCT05930821 [ABSTRACT FROM AUTHOR]

China is on the brink of transitioning into an aged society, resulting in a growing demand for an age-friendly street-built environment. However, previous research has paid limited attention to the differentiated walking needs of older adults. To address this gap, this study investigated the relationship between street-built environments and the subjective perception of older adults with different physical capabilities, focusing on safety, comfort, and interest. The older adults were classified into three types based on their physical mobility abilities. The TrueSkill algorithm was used to develop an online image selection website to obtain perception scores for sampled pictures from these three types of older adults. Image segmentation and deep learning were combined to extract indices of street view factors, and machine learning was used to train a scoring prediction model for all streetscape pictures of the area. The study found differences in the subjective perception among all three types of older adults, namely independent elderly (A), mediated-assisted elderly (B), and dependent elderly (C). Type A older adults might be attracted to factors related to the interest of walking despite their negative impact on safety and comfort; Type B older adults were more concerned about street conditions for safety and comfort. Type C older adults were prone to the convenience of barrier-free access and visibility. This study contributes to the study of walkability by providing a research framework for the subjective walking perceptions of older adults with different physical capabilities. Additionally, the visualized walkability map can serve as a reference for architects and urban designers, further strengthening the development of age-friendly communities with the aid of human-centric computational analysis, evaluation, and design. • Refines walkability research for older adults by categorizing and studying them based on walking abilities, showing differences by physical conditions. • Explores the relationship between subjective perceptions and the objective built environment, focusing on long-established communities. • Uncovers implicit needs and tendencies using picture selection and the TrueSkill rating method. • Uses pedestrian-perspective street view images instead of the commonly used vehicular-perspective images for research. [ABSTRACT FROM AUTHOR]

• Baseline pulse pressure was associated with future handgrip strength, gait speed, and 6-min walking distance among older adults in this study. • Older adults with both high systolic blood pressure (≥140 mmHg) and high pulse pressure (≥60 mmHg) had a significantly increased risk of future weakness, slowness, and lower endurance. • Controlling pulse pressure could slow the age-related decline in physical function. This study examined the associations between pulse pressure, hypertension, and the decline in physical function in a prospective framework. The Healthy Aging Longitudinal Study tracked a group of Taiwanese adults aged 55 or more over an average of 6.19 years to assess pulse pressure and decline in physical function, including in handgrip strength, gait speed, and 6-min walking distance, at baseline (2009–2013) and in the second phase of assessments (2013−2020). Pulse pressure was calculated as the difference between systolic and diastolic blood pressure values. Weakness, slowness, and low endurance were defined as decreases of ≥0.23 m/s (one standard deviation) in gait speed, ≥5.08 kg in handgrip strength, and ≥ 57.73 m in a 6-min walk, as determined from baseline to the second phase of assessment. Linear and logistic regressions were employed to evaluate the associations between pulse pressure, hypertension, and decline in physical function. Baseline pulse pressure was associated with future handgrip strength (beta = −0.017, p = 0.0362), gait speed (beta = −0.001, p < 0.0001), and 6-min walking distance (beta = −0.470, p < 0001). In multivariable models, only handgrip strength (beta = −0.016, p = 0.0135) and walking speed (beta = −0.001, p = 0.0042) remained significantly associated with future pulse pressure. Older adults with high systolic blood pressure (≥140 mmHg) and elevated pulse pressure (≥60 mmHg) exhibited a significantly increased risk of weakness (odds ratio: 1.30, 95 % confidence interval: 1.08–1.58), slowness (1.29, 1.04–1.59), and diminished endurance (1.25, 1.04–1.50) compared with the reference group, who exhibited systolic blood pressure of <140 mmHg and pulse pressure of <60 mmHg. Among older adults, pulse pressure is associated with a decline in physical function, especially in terms of strength and locomotion. [ABSTRACT FROM AUTHOR]

• A fully automated system for gait analysis in the context of frailty. • Extraction of original features describing the older adults gait in regards to frailty status. • Assessment of frailty trajectory in elderly under unsupervised conditions during daily routine. • An added value in comparison with the standard frailty phenotype. Frailty in older individuals has been a hot research topic in the past two decades. This syndrome of physiological decline is characterized by damage to physical function. In the literature, walking speed and gait variability have been discussed and identified as major indicators of frailty. Short walking tests under supervised conditions are frequently considered when assessing the frailty status, where the subject is instructed to walk a certain distance, and the speed and temporospatial features are compared to thresholds. In this paper, we propose a more generalized and fully automated approach using wearable sensors, by suggesting a set of parameters extracted from acceleration signals. The interconnections between these variables, which are related to the gait quality and the frailty trajectory of the subject, are investigated. This study was done on older adults of diverse profiles, in free-living conditions during their daily routine, without any predefined protocol. [ABSTRACT FROM AUTHOR]

Objectives/background: The prevalence of obstructive sleep apnea (OSA) in people over 70 years can reach up to 95%. Aerobic or combined exercise programs have been shown to impact positively on OSA severity. Resistance training changes leg fluid retention. We hypothesized that through this mechanism it may have an impact on the OSA severity in older adults.Patients/methods: We evaluated changes in the respiratory event index (REI) of older adults with moderate-severe obstructive sleep apnea in a randomized, masked, controlled, parallel group trial. Participants between the age of 65 and 80 years with REI between 20 and 50 events/hour were assigned randomly to 12 weeks of resistance training or healthy life-style recommendations. Change in REI was the primary outcome. Muscle thickness, maximum strength, and physical function were secondary outcomes and body mass index (BMI) and body water content were assessed as mediators.Results: Twenty-three subjects were included, 57% men, aged 71 ± 5 years, randomized to training (n = 12) and control intervention (n = 11). The baseline REI in the training and control groups were 30 ± 7/h and 29 ± 9/h; at follow-up, the delta REI were -3.6/hour (95% confidence interval -0.7 to -5.4) and 6.7/hour (5.2-8.6), respectively, with significant time × group interaction that remained significant after adjusting the generalized estimating equations model for delta BMI and delta body water content.Conclusions: Twelve weeks of resistance training in older adults significantly changed the respiratory event index and was well tolerated. Changes in body water content were slight but cannot be dismissed as contributing to REI reduction. [ABSTRACT FROM AUTHOR]

Background: This study aimed to examine the associations of plasma superoxide dismutase (SOD) activity, an indicator of oxidative stress, with disability in activities of daily living (ADL) and objective physical functioning among Chinese older adults.Methods: We used cross-sectional data of 2223 older adults (≥65 years, including 1505 adults≥80 years) from the 2011/2012 main survey of the Chinese Longitudinal Healthy Longevity Survey (CLHLS) and the 2012 biomarker sub-study. Plasma SOD activity was assessed by the T-SOD assay kit based on the hydroxylamine method. Outcomes included ADL disability and disability in three objective physical tasks (standing up from a chair, picking up a book from the floor, and turning around 360°). Logistic regression models were used to examine the associations of plasma SOD activity with outcomes.Results: After controlling for age and sex, compared with participants in the lowest quartile group of SOD activity, those in the highest quartile group had 31% lower odds of ADL disability (odds ratio [OR]: 0.69; 95%CI: 0.48, 0.98); 60% lower odds of disability in standing up from a chair (OR: 0.40; 95%CI: 0.25, 0.63); and 57% lower odds of disability in picking up a book from a floor (OR: 0.43; 95%CI: 0.28, 0.65). The results did not change substantially after controlling for additional covariates. We did not observe statistically significant age and sex differences.Conclusions: Overall, plasma SOD activity was associated with subjectively and objectively measured disability in Chinese older adults, highlighting the potential of SOD activity to serve as a biomarker of physical functioning. [ABSTRACT FROM AUTHOR]

• Study suggests exercise may help prevent traffic injuries. • Elderly people who do not exercise have a gap between their awareness and behavior when crossing the street. • A high percentage of elderly people are able to react in some way when they are about to have an injury. Introduction: In recent years, the percentage of elderly fatalities in traffic crashes in Japan has been increasing and has exceeded 50% since 2010. The fatality rate is high for the elderly due to the deterioration of physical functions. Method: The purpose of this study was to reduce the high fatality rate of elderly people at the time of the crash and to find out the effective exercise elements for maintaining physical functions, and to deter traffic crashes and reduce the fatality rate of the elderly people. Results: The effect of exercise on improving and maintaining physical fitness was remarkable, and even when encountering a near miss injuries or crashes, the percentage of the group that was able to respond in some way to a near miss or crashes was higher in the group that regularly exercised. The elderly who do not exercise tend to take longer to start crossing and tend to check both sides of the road less often while crossing. In addition, when they were about to encounter a car, they tended to continue walking, which tended to lead to dangerous crossing. Conclusion: As a result of the questionnaire survey, the possibility of preventing traffic crashes by participating in sports was confirmed. As a result of running experiments using a crossing simulator, it was found that elderly people who do not exercise have a gap between their usual awareness of crossing and their actual behavior. Practical implications: Through the discovering elements of exercise that are useful in reducing injuries will make it possible to provide accurate guidance and training to elderly people with reduced physical functions, and it is expected that pedestrians will be able to avoid traffic injuries with their own abilities. [ABSTRACT FROM AUTHOR]

In recent years the focus of healthcare and nutritional science in older adults has shifted from mortality towards physical performance and quality of life. The aim of this review was to summarize observational studies on physical performance in malnourished (MN) or at risk of malnutrition (RMN) older adults compared with well-nourished (WN) older adults. Eligible studies had to report on nutritional status and objectively measured physical performance in older adults (≥60 y). MN or RMN groups had to be compared with a WN group, measured with a validated nutrition screener. Ovid Medline and Web of Science were searched until 13 November, 2020. Study quality was scored using a modified Newcastle–Ottawa Scale (NOS). Results were analyzed by meta-analysis when possible, or narratively reviewed otherwise. Forty-five studies (16,911 participants in total) were included from studies in outpatient clinics (n = 6), nursing homes (n = 3), community-dwelling older adults (n = 20), hospitalized patients (n = 15), or a combination (n = 1). Studies used 11 different screeners of malnutrition, and 8 types of physical performance measures. Meta-analysis showed that compared with MN, WN groups had better hand grip strength (mean difference [MD] = 4.92 kg; 95% CI: 3.43, 6.41; P < 0.001; n = 23), faster gait speed (MD = 0.16 m/s; 95% CI: 0.05, 0.27; P = 0.0033; n = 7), performed faster on timed-up-and-go (MD = –5.94 s; 95% CI: –8.98, –2.89; P < 0.001; n = 8), and scored 1.2 more short physical performance battery points (95% CI: 1.32, 2.73; P < 0.001; n = 6). Results were less pronounced when compared with RMN. Narratively, all studies showed an association for knee extension strength, 6-min walking test, and multicomponent tests, except for the chair stand test. Study limitations include no studies scoring "good" on NOS, lack of confounder adjustment, and high heterogeneity. Overall, evidence from cross-sectional studies indicate an association between malnutrition and worse physical performance in older adults. This study is registered in PROSPERO as CRD42020192893. [ABSTRACT FROM AUTHOR]

• This systematic review investigates the association between adherence to the Nordic diet and frailty among older adults. • Three studies (2 prospective cohort, 1 cross-sectional) reported across 6 papers were identified. • Greater compliance with the Nordic diet was associated with reduced frailty risk in women (one study). • Greater adherence to Nordic diet was associated with improved muscle strength (one study) and physical performance (two studies) in women, but no significant results were observed in men (two studies). • Greater adherence to the Nordic diet was associated with better mobility and functioning (one study) The Nordic or Baltic Sea diet is a healthy plant-based dietary pattern composed of foods originating from Nordic countries, closely related to the Mediterranean diet. Adherence to the Mediterranean diet has been found to be associated with a reduced risk of frailty. Although adherence to the Nordic diet has been associated with health benefits, little is known about its association with frailty. To investigate the evidence from observational studies regarding the association between the Nordic/Baltic Sea diet and frailty among older adults. Systematic review. Three databases (Medline/Ovid, Embase/Ovid, and Scopus) were systematically searched in February 2023 for observational studies examining the association between adherence to the Nordic diet and frailty among adults ≥60 years. The two authors independently assessed the full text of the papers for eligibility of studies and risk of bias. Three studies (the results of which were reported across 6 papers) met the inclusion criteria, among which one study (2 papers) included only women. Greater adherence to the Nordic diet was associated with a reduced risk of frailty measured by modified Fried criteria in women (one study). Moreover, greater adherence to the Nordic diet was associated with improved muscle (handgrip/leg) strength (one study) and physical performance (two studies), but these differences were seen only in women, with no significant results in men in two studies. Greater adherence to the Nordic diet was also associated with a lower risk of mobility limitations and improved ability to carry out self-care tasks (one study) and a borderline non-significant difference in Activities of Daily Living (one study). A meta-analysis was not performed due to heterogenous outcomes. Although all studies were of good quality, the results should be carefully interpreted due to methodological limitations. Adherence to the Nordic diet could be promising in reducing frailty risk, but more robust studies with equal gender representation and frailty-specific outcomes are needed. [ABSTRACT FROM AUTHOR]

• Maintenance of non-depression had a protective effect on weak handgrip strength. • Improvement of depression had a protective effect on weak handgrip strength. • Managing depression to prevent poor physical function is important. Few studies have examined the associations between changes in depressive symptoms and handgrip strength in older people. This study aimed to examine the magnitude of the association between depressive symptoms over 2 years and weak handgrip strength on the 4 years of follow-up. We conducted a longitudinal study using data from the English Longitudinal Study of Aging, a nationally representative panel survey of older adults in England. Data were derived from waves 4 (2008–2009), 5 (2010–2011), and 6 (2012–2013). A total of 5,080 participants were included in the analysis. Depressive symptoms were dichotomized using the eight-item Center for Epidemiological Studies Depression Scale in waves 4 and 5 and were regarded as the exposure. Handgrip strength measurements objectively measured in wave 6 were dichotomized according to the 25th percentile of the British norm and used as the outcome. The targeted maximum likelihood estimation model was utilized to assess time-variant depressive symptoms on handgrip strength, adjusted for time-variant and time-invariant covariates. The maintenance of non-depressive symptoms (relative risk [RR], 0.72; 95% confidence interval [CI], 0.59–0.87) or improvement of depressive symptoms (RR, 0.71; 95% CI, 0.55–0.91) had a protective effect on weak handgrip strength compared with the persistence of depressive symptoms. This study is not a randomized control trial but a longitudinal observational study, indicating that our study finding may still have been affected by unknown confounders. Our findings suggest the importance of managing depressive symptoms to prevent poor physical function. [ABSTRACT FROM AUTHOR]

Gait is one of the best measures of physical function in older adults. The study examined the association between spatiotemporal gait variables and mortality among older adults. The participants were 4,298 older adults in the National Center for Geriatrics and Gerontology - Study of Geriatric Syndromes. At baseline we measured the following spatiotemporal gait variables: gait speed, stride length, cadence, and stride length variability. Demographic variables, medical conditions, cognitive function, and physical inactivity were also assessed at baseline. We obtained gait measurements over five trials using an electronic gait-measuring device mounted at the middle 2.4 m section of a 6.4 m straight and flat pathway, with 2 m allowed for acceleration and deceleration. Participants' usual gait speed was measured. Subsequent incident death was confirmed using administrative data. During follow-up (mean duration: 1,571 days), there were 185 incident deaths among participants. Low function on all gait variables increased risk of mortality (adjusted hazard ratio [95% confidence interval], gait speed: 1.83 [1.31-2.56], stride length: 1.85 [1.31-2.62], cadence: 1.60 [1.17-2.18], stride length variability: 1.50 [1.09-2.06]). In addition, mortality risk increased with the number of variables showing low gait function compared with normal gait function (p < .05). Slower gait speed, shorter stride length, lower cadence, and higher stride length variability were associated with increased mortality. Multifaceted gait analysis could be useful for evaluating mortality risk. [ABSTRACT FROM AUTHOR]

Introduction: Limitations in physical function are predictive of adverse health outcomes, and screening has been recommended in clinical settings for older adults. Rarely assessed in community-based settings, physical function could provide insight for tailoring health-related community-based programs and raise awareness about this important aspect of health. This cross-sectional study seeks to demonstrate the feasibility of integrating physical function assessments into health screenings in African American churches in Chicago, Illinois, through a large health partnership and to determine the prevalence and correlates of physical function limitations among midlife (aged 40-59 years) and late-life (aged ≥60 years) participants.Methods: Screenings were held in 7 churches in Spring 2018. Physical function was assessed using the Short Physical Performance Battery. Demographics, medical history, health status, and health behaviors were assessed. Age-stratified logistic regression identified independent associations with physical function limitations (Score ≤9) among midlife and late-life participants (data were analyzed in 2018-2019).Results: Among 731 participants (median age=57 [IQR=51-65] years, 58% women, 97% African American), 25% of midlife and 56% of late-life participants had physical function limitations. For midlife participants, fair/poor health (OR=1.83, 95% CI=1.10, 3.05), stroke/neurologic conditions (OR=2.42, 95% CI=1.07, 5.46), and arthritis (OR=2.25, 95% CI=1.32, 3.81) were associated with higher odds of limitations. Fair/poor health (OR=1.97, 95% CI=1.11, 3.50) and stroke/neurologic conditions (OR=7.85, 95% CI=2.22, 27.74) were related to limitations among late-life participants.Conclusions: Physical function screening was successfully implemented into this large-scale church-based health screening program. Physical function limitations were prevalent, particularly at midlife; this information will be used to guide future programs. [ABSTRACT FROM AUTHOR]

Background: This study aims to evaluate the association between the risk of hip fracture and score on the Short Physical Performance Battery (SPPB) and handgrip strength in community-dwelling elderly people in China.Methods: A total of 5,958 community-dwelling Chinese people aged 60 years or more from the China Health and Retirement Longitudinal Study (CHARLS) were surveyed in 2011 (baseline) and followed through to 2016. Score on the SPPB (which comprises tests of balance, walking speed, and repeated chair stands) and handgrip strength were determined at baseline. Binary logistic regression models were used to estimate the risk ratio (RR) and 95 % CI.Result: During an average of approximately 4 years of follow-up, 180 (3.0 %) participants experienced incident hip fracture. After multivariate adjustment, the overall SPPB score and repeated chair stands alone distinguished a gradient of hip fracture risks. The risk of hip fracture was 1.65-fold higher in poor SPPB performers (score 0-6) than in good SPPB performers (score 10-12). Participants unable to complete repeated chair stands, and those who took ≥16.7 s or 13.7-16.6 s to complete them, had a higher risk than those who took ≤ 11.1 s to complete them, with RRs of 2.45, 2.12, and 1.93, respectively. Participants unable to complete the balance tests had a higher hip fracture risk than those with scores of 4, with an RR of 2.16. Walking speed and handgrip strength were not associated with increased hip fracture risk.Conclusion: Among community-dwelling elderly Chinese people, overall SPPB score, as well as performance on repeated chair stands and balance tests within the SPPB, were significantly and independently associated with increased hip fracture risk. These indicators could be used to predict hip fracture in clinical settings. [ABSTRACT FROM AUTHOR]

This study explores the relationship between musculoskeletal conditions of ageing and life-space mobility (LSM) in 1110 community-dwelling older adults from the Hertfordshire Cohort Study. LSM is a novel measure which captures ability to mobilise within the home, locally and more widely. Among men, older age, care receipt, not driving a car, lower wellbeing, and reduced physical function were associated with lower LSM, while in women only driving status and physical function were associated with LSM. Osteoporosis, arthritis, and fractures had no significant associations with LSM in either gender. These findings provide support for sex-specificity in the determinants of LSM and inform novel approaches to improving mobility and health in older age. • Life-space mobility (LSM) is essential for engagement in activities and maintaining independence. • Mobility declines with age and is associated with adverse health outcomes. • This study investigates gender differences in the relationships between musculoskeletal factors and LSM among older adults. • Musculoskeletal conditions and fractures were not associated with LSM. • Age, receipt of care, falls wellbeing, and physical function were associated with LSM in men; only physical function was associated with LSM in women. [ABSTRACT FROM AUTHOR]

• The 10-year incidence of dizziness/vertigo was relatively high in older adults. • Age and migraine were independent predictors of incident dizziness/vertigo. • Dizziness/vertigo was associated with reduced quality of life over 10 years. We used a cohort of community-dwelling adults to establish the 10-year incidence and predictors of dizziness/vertigo, and its impacts on health-related quality of life. Of the 1152 participants aged 55 + years who did not have dizziness/vertigo at baseline, 799 and 377 participants were followed up after 5 and 10 years, respectively, and had complete data and so were included in the incidence analysis. Hearing loss was determined as the pure-tone average of audiometric hearing thresholds at 500, 1000, 2000 and 4000 Hz, and any hearing loss was defined as >25 dB hearing level. Tinnitus and migraine were assessed by a positive response to a single question. Audiologists screened participants for reported dizziness using a single question. Quality of life was measured using the Short Form 36-item Health Survey (SF-36). The cumulative 10-year incidence of dizziness/vertigo, vestibular vertigo and non-vestibular vertigo were 39.8 %, 27.1 %, and 11.9 %, respectively. Age and presence of migraine were significant predictors of incident dizziness/vertigo: multivariable-adjusted hazard ratio (HR) 1.03 (95 % confidence interval, CI, 1.01–1.06) and HR 1.63 (95 % CI 1.13–2.35), respectively. A significant decrease in scores for the following SF-36 domains was observed over the 10 years among participants reporting baseline dizziness/vertigo: physical functioning (P -trend ≤ 0.0001), role limitation due to physical problems (P -trend ≤ 0.0001), general health (P -trend = 0.01), and vitality (P -trend = 0.01). Dizziness/vertigo was a frequent and detrimental symptom in this population of community-dwelling adults. Our study highlights the burden imposed by dizziness, as evidenced by a significant prospective association with poorer quality of life. [ABSTRACT FROM AUTHOR]

Research on natural health has identified the potential benefit of outdoor blue spaces for human health and wellbeing. However, the existing evidence has relatively limited attention to the elderly. This study aims to review the available evidence on outdoor blue spaces and health outcomes among older individuals and identify knowledge gaps. In accordance with the PRISMA guidelines, specific keywords were used to search for articles published in English from inception to October 2023. Five databases (Scopus, PubMed, Web of Science, CINAHL, and PsycINFO) were searched, and 22 studies were identified in this review. We classified articles based on elderly health as general health (e.g., self-reported, perceived health and wellbeing), physical health (e.g., physical activity, physical function index), and mental health and wellbeing (e.g., depression). The findings indicated a positive correlation between outdoor blue space and the health of the elderly. In terms of the characteristics of exposure to outdoor blue spaces, direct contact (e.g., sensory-based) has not been well documented compared to indirect contact (e.g., distance, percentage, region-based). Although encouraging, the available body of evidence is limited and lacks consistency. Future research is needed to provide complementary evidence between outdoor blue spaces and elderly health. • Outdoor blue spaces have the potential to benefit elderly health. • Direct interaction with outdoor blue spaces was understudied in comparison to indirect contact. • For the elderly, the ways to access outdoor blue spaces were distance, percentage, region, and sensory exposure. • Little but important evidence was found on the correlation between outdoor blue spaces and the health of the elderly. [ABSTRACT FROM AUTHOR]

The prognostic significance of obesity in sarcopenic adults is controversial. This systematic review and meta-analysis aimed to investigate the effect of additional obesity on health outcomes in sarcopenia. MEDLINE, EMBASE, Scopus and CENTRAL were systematically searched for studies to compare health outcomes of adults with sarcopenic obesity (SO) to those of sarcopenic non-obese (SNO) adults. We also considered the methods of assessing obesity. Of 15060 records screened, 65 papers were included (100612 participants). Older community-dwelling SO adults had 15% lower mortality risk than the SNO group (hazard ratio, HR: 0.85, 95% confidence interval 0.76, 0.94) even when obesity was assessed by measurement of body composition. Additionally, meta-regression analysis revealed a significant negative linear correlation between the age and the HR of all-cause mortality in SO vs. SNO community-dwelling adults, but not in severely ill patients. Compared with SNO, SO patients presented lower physical performance, higher risk for metabolic syndrome, but similar cognitive function, risk of falls and cardiovascular diseases. Age-related obesity, SO and later fat loss leading to SNO represent consecutive phases of biological aging. Additional obesity could worsen the health state in sarcopenia, but above 65 years SO represents a biologically earlier phase with longer life expectancy than SNO. • Among older adults sarcopenic obesity confers better survival than sarcopenia alone. • The effect of obesity on mortality risk in sarcopenic adults depends on age. • Obesity worsens the physical function and the metabolic syndrome in sarcopenia. • Obesity does not influence the mortality risk in severely ill sarcopenic patients. [ABSTRACT FROM AUTHOR]

Background To investigate the relationship between 1-year outcome and diastolic dysfunction (DD) and frailty and/or physical performance (PP) in older adults admitted to hospital for acute coronary syndrome (ACS). Methods and results Older (age ≥ 70 years) hospitalized for ACS and receiving coronary artery angiography ± percutaneous coronary intervention were included. Before discharge a complete transthoracic echocardiogram (TTE) was performed with the assessment of DD, following the 2016 American Society of Echocardiography/European Association of Cardiovascular Imaging algorithm. Seven different scales of frailty and PP were assessed. The relationship between DD and tests of frailty and PP was investigated, as well as the association with the 1-year occurrence of all-cause death or re-hospitalization. Overall, 329 patients were included in the analysis. Patients were stratified in two groups: DD grade 0–1 versus 2–3. Those with undetermined degree of DD have been excluded by the analysis (n = 106). Mean age of the groups was 77 ± 5 vs 79 ± 6 years, respectively. Scales of frailty and/or PP were significantly poor in patients with DD grade 2–3 compared to the others. After multivariate Cox regression (considering age, female sex, haemoglobin, albumin, clinical presentation, LVEF and SPPB) DD (degree 2–3 vs. 0–1) emerged as an independent predictor of the composite endpoint (HR 1.69, 95%CI 1.04–2.75, p = 0.033). This was mainly driven by 1-year re-hospitalization (HR 2.01, 95%CI 1.22–3.27, p < 0.001). Conclusions In older ACS patients the assessment of DD is related to parameters of frailty and PP and it is an independent predictor of 1-year outcome. • In 2016 a new algorithm for the grading of diastolic disfunction (DD) was released by the ASE/EACVI. • In older patients with ACS from FRASER program, DD is related to frailty and poor physical performance. • DD is an independent predictor of 1-year composite outcome of all-cause death or re-hospitalization. [ABSTRACT FROM AUTHOR]

It is unclear whether the combined effects of exercise and nutrition are better than those of exercise alone or nutrition alone in older adults with sarcopenia. This paper assesses the comparative effects of exercise, nutrition, and the combination of exercise and nutrition on muscle mass, muscle strength, and physical performance in older adults with sarcopenia. In this systematic review and network meta-analysis, 11 electronic databases were searched up to November 2020. Inclusion criteria were: (1) adults aged 65 years and older with sarcopenia; (2) interventions of exercise, nutrition, or the combination of both; (3) the outcomes include at least one of the following: muscle mass, muscle strength (hand grip and knee extension strength), or physical performance (gait speed and dynamic balance); and (4) randomized control trials. For each outcome measurement, a network meta-analysis was conducted to determine the direct and indirect effects of each intervention compared with each of the other interventions. A total of 26 studies were included in the network meta-analysis. Compared with the control group, exercise alone and the combination of exercise and nutrition significantly increased handgrip strength (1.12 kg, 95% CI: 0.12, 2.11; 2.03 kg, 95% CI: 1.10, 2.97) and improved dynamic balance (-1.76 seconds, 95% CI: -2.24, -1.28; -1.02 seconds, 95% CI: -1.64, -0.39). Both exercise alone and the combination of exercise and nutrition have beneficial effects on muscle strength and physical performance in older adults with sarcopenia. [ABSTRACT FROM AUTHOR]

• Risk stratification of older patients before elective cardiac surgery needs improvement. • Short physical performance battery (SPPB) improves prediction of hospital outcomes. • SPPB should be used systematically to refine prognostic assessment. Risk stratification of cardiac surgery patients is usually based on the Society of Thoracic Surgeons (STS) score, that has limited predictive value in older persons. We aimed assessing whether the Short Physical Performance Battery (SPPB) improves, beyond the STS score, assessment of hospital prognosis in older patients undergoing elective cardiac surgery. All patients aged 75+ years referred for elective cardiac surgery to Careggi University Hospital (Florence, Italy) from April 2013 to March 2017 were evaluated pre-operatively. Participants were classified according to the STS-Predicted Risk Of Mortality (STS-PROM): low (<4%), intermediate (4 to 8%), and high risk (>8%). Primary study outcomes were hospital mortality and STS-defined major morbidity. Length of hospital stay was an additional outcome. Out of 235 participants (females: 46.5%; mean age: 79.6 years), 144 (61.3%) were at low, 67 (28.5%) at intermediate and 24 (10.2%) at high risk, based on the STS-PROM. SPPB (mean±SEM) was 8.8 ± 0.2, 7.0 ± 0.5, and 6.0 ± 0.8 in participants at low, intermediate, and high risk, respectively (p <0.001). The primary outcome occurred in 62 participants (26.4%). In low-risk participants, the SPPB score predicted the primary endpoint (adjusted OR 0.77, 95% CI 0.66–0.89 per each point increase; p <0.001) controlling for STS-Major Morbidity or Operative Mortality (STS-MM) score. This result was not observed in the intermediate-high risk group. SPPB predicts mortality and major morbidity in older patients undergoing elective cardiac surgery, classified as low risk with the STS risk score. The SPPB, applied preoperatively, might improve risk stratification in older patients undergoing elective cardiac surgery. Image, graphical abstract [ABSTRACT FROM AUTHOR]

• Dance combines aerobic, coordination and cognitive exercise. • Dance is a leisure activity that motivates people and elicits emotions. • Dance improves brain structure and function of older adults. • Dance training has a protective effect on cognition in older adults. Dance is a multidomain activity that combines aerobic, coordination and cognitive exercise. This music-associated physical and cognitive exercise is a leisure activity that motivates people, elicits emotions, and avoids boredom, promoting adherence to practice. Continuing physical activity is of paramount importance, since cognitive benefits tend to disappear or even reverse when training ceases. The question we addressed in this systematic review is what influence dance has on the brain and cognition of healthy middle-aged and older adults. We systematically reviewed the effects of dance on brain and cognition in older adults using MEDLINE, Psyc-Info, PubMed and Scopus databases. After screening 1051 studies, thirty-five met the eligibility inclusion criteria. These studies showed that dance improves brain structure and function as well as physical and cognitive functions. The protective effect of dance training on cognition in older adults, together with the possibility of adapting intensity and style to suit possible physical limitations makes this activity very suitable for older adults. [ABSTRACT FROM AUTHOR]

Background: Protein intake greater than the currently recommended amount is suggested to improve physical functioning and well-being in older adults, yet it is likely to increase diet-associated greenhouse gas emissions (GHGEs) if environmental sustainability is not considered.Objectives: We aimed to identify dietary changes needed to increase protein intake while improving diet environmental sustainability in older adults.Methods: Starting from the habitual diet of 1,354 Dutch older adults (aged 56-101 y) from the Longitudinal Aging Study Amsterdam cohort, mathematical diet optimization was used to model high-protein diets with minimized departure from habitual intake in cumulative steps. First, a high-protein diet defined as that providing ≥1.2 g protein · kg body weight-1 · d-1 was developed isocalorically while maintaining or improving nutritional adequacy of the diet. Second, adherence to the Dutch food-based dietary guidelines (FBDG) was imposed. Third, a stepwise 10% GHGE reduction was applied.Results: Achieving a high-protein diet aligned with the FBDG without considering GHGEs required an increase in vegetables, legumes, nuts, whole grains, meat/dairy alternatives, dairy, and eggs and a reduction in total meat (for men only) and discretionary products, but it resulted in a 5% increase in GHGEs in men and 9% increase in women. When a stepwise GHGE reduction was additionally applied, increases in poultry and pork (mainly for women) and decreases in beef/lamb and processed meat were accrued, with total meat staying constant until a 50-60% GHGE reduction. Increases in whole grains, nuts, and meat/dairy alternatives and decreases in discretionary products were needed to lower GHGEs.Conclusions: A high-protein diet aligned with FBDG can be achieved in concert with reductions in GHGEs in Dutch older adults by consuming no more than the recommended 500 g meat per week while replacing beef and lamb and processed meat with poultry and pork and increasing intake of diverse plant-protein sources. [ABSTRACT FROM AUTHOR]

Ageing is associated with cognitive decline, ranging from normal to mild cognitive impairment or dementia. This leads to physical and cognitive impairments, which are risk factors for loss of autonomy. Therefore, cognitive and physical training are important for cognitively impaired older adults. The combination of both may represent an efficiency advantage. This overview aims to summarize the effectiveness of cognitive-motor dual-task (CMDT) interventions on cognitive, physical and dual-task functions in cognitively impaired older adults, as well as the safety, adherence, and retention of benefits of these interventions. We searched for systematic reviews or meta-analyses assessing the effects of CMDT interventions on cognitive or physical functions in older adults with mild cognitive impairment or dementia through eight databases (CDSR (Cochrane), MEDLINE, Scopus, EMBASE, CINAHL, PsycINFO, ProQuest and SportDiscus). Two reviewers independently performed the selection, data extraction and risk of bias evaluation. Nine reviews were included in this overview. CMDT interventions were found to be more effective than active control groups on cognitive and physical functions in older adults with cognitive impairment, irrespective of intervention dose and modalities; no information on dual-task functions was available. Retention of benefits, adherence, need for supervision and safety are still unclear. These results should be interpreted with caution, considering the low average methodological quality of included reviews. Future intervention research should follow more rigorous methodological standards and focus on other forms of CMDT. [ABSTRACT FROM AUTHOR]

This systematic review with meta-analyses investigates the impact of resistance training (RT), using meta-regressions, on functional performance in frail and pre-frail adults aged ≥ 65 years to determine the key variables of RT. Ten randomized controlled trials involving 1303 participants were analyzed. Five studies assessed habitual walking speed (HWS), three studies evaluated performance in the timed-up-and-go test (TUG), three studies evaluated performance in the Short Physical Performance Battery (SPPB), and three studies assessed performance in the sit-to-stand test (STS). RT alone improved STS time and SPPB scores in frail and pre-frail older adults. RT improved STS performance (Effect Size (ES):− 0.536; 95% CI − 0.874 to − 0.199; p =.002) and led to a 2.261-point increase in SPPB performance (ES:1.682; 95% CI 0.579–2.786; p =.003). At least two weekly training sessions are required to increase SPPB scores, and three sessions seem to optimize the improvements. Higher training volume per exercise and volume per session reduce the gains in SPPB performance. We did not observe any association between different doses of RT and STS time improvements. RT alone positively influenced TUG performance only in community-dwelling older frail and pre-frail adults but not in institutionalized older individuals. RT alone did not improve the HWS compared to the non-active control group. • Progressive resistance training alone can improve sit-to-stand time and SPPB. • At least two weekly training sessions of RT are needed to increase SPPB scores • The effect of different doses of RT to promote STS improvements is still unclear. • High RT volume per session and per exercise may not be ideal for SPPB changes. • Resistance training alone did not promote differences in walking speed. [ABSTRACT FROM AUTHOR]

The objective of this systematic review and meta-analysis was to determine if there are sex-based differences in adaptations to resistance exercise training in healthy older adults. Following the screening process, data from 36 studies comparing older males and females (602 males; 703 females; ≥60 years of age) for changes in skeletal muscle size, muscle strength, and/or physical performance following the same resistance exercise training intervention were extracted. Mean study quality was 16/29 (modified Downs and Black checklist), considered moderate quality. Changes in absolute upper-body (Effect Size [ES] = 0.81 [95% CI 0.54, 1.09], P < 0.001), and lower-body (ES = 0.40 [95% CI 0.24, 0.56], P < 0.001) strength were greater in older males than females. Alternatively, changes in relative upper-body (ES = −0.46 [95% CI −0.77, −0.14], P < 0.01), and lower-body (ES = −0.24 [95% CI −0.42, −0.06], P < 0.01) strength were greater in older females than males. Changes in absolute, but not relative, whole-body fat-free mass (ES = 0.18 [95% CI 0.04, 0.33], P < 0.05) were greater in older males than females. There were no sex-based differences for absolute or relative changes in limb muscle size, muscle fiber size, or physical performance. • Absolute changes in upper- and lower-body strength are greater in older males. • Relative changes in upper- and lower-body strength are greater in older females. • Absolute changes in whole-body fat-free mass are greater in older males. • No sex-based differences for changes in muscle size at the limb or fiber level. • No sex-based differences for changes in physical performance. [ABSTRACT FROM AUTHOR]

• An increasing number of comorbidities was associated with worse back pain outcomes. • Musculoskeletal disorders were the most common comorbidities in our study population. • Musculoskeletal comorbidities were associated with worse back pain outcomes. Comorbidities are common in older people with back pain but little is known about the influence of comorbidities on outcomes. To explore the influence of the most prevalent comorbidities, and the number of comorbidities, on short (at 3 months) and long-term (at 12 months) outcomes of back pain in older people. We analyzed data from the 'Back Complaints in the Elders' Dutch study cohort (BACE-D) and included participants aged >55 years. We used the modified Self-Administered Comorbidities Questionnaire (SCQ), the Numeric Rating Scale (NRS) and the Roland–Morris Disability Questionnaire (RMDQ) to assess the number of comorbidities, pain intensity and back-related physical functioning, respectively. We conducted separate linear regression models to analyze the association between comorbidities and outcomes including potential confounders of age, sex, body mass index, smoking and alcoholic drinking status, back pain history, and baseline NRS and RMDQ scores. Our study included 669 participants with a mean age of 66.5 (SD 7.7) years of whom 394 were female. More comorbidities were positively associated with higher pain intensity (3-month regression coefficient (β) =0.27, 95% CI 0.14–0.39; 12-month β = 0.31, 95% CI 0.17–0.45) and worse physical functioning (3-month β = 0.54, 95% CI 0.31–0.77; 12-month β = 0.64, 95% CI 0.37–0.92). Four of the 5 commonest comorbidities were musculoskeletal problems. Older participants with musculoskeletal comorbidities had higher pain intensity (3-month β = 0.89 95% CI 0.41–1.37; 12-month β = 1.17, 95% CI 0.65–1.69), and worse physical functioning (3-month β = 1.61, 95% CI 0.71–2.52; 12-month β = 1.85, 95% CI 0.82–2.89, P -value < 0.001) compared to participants without musculoskeletal comorbidities. More comorbidities are associated with worse back pain outcomes in older adults. Participants with musculoskeletal comorbidities had worse back pain outcomes than those without. [ABSTRACT FROM AUTHOR]

Osteoporotic fractures present a major health problem with an increasing prevalence in older people. Fractures are associated with premature mortality, reduced quality of life, subsequent fracture, and increased costs. Hence, it is crucial to identify those at higher risk of fracture. Fracture risk assessment tools incorporated clinical risk factors to improve fracture predictive power over BMD alone. However, fracture risk prediction using these algorithms remains suboptimal, warranting further improvement. Muscle strength and physical performance measurements have been associated with fracture risk. In contrast, the contribution of sarcopenia, the composite condition of low muscle mass, muscle strength and/or physical performance, to fracture risk is unclear. It is uncertain whether this is due to the problematic definition of sarcopenia per se or limitations of the diagnostic tools and cut-off points of the muscle mass component. The recent position statement from the Sarcopenia Definition and Outcomes Consortium confirmed the inclusion of muscle strength and performance in the definition of sarcopenia but not DXA-assessed lean mass. Therefore, clinicians should focus on functional assessment (muscle strength and performance) rather than muscle mass, at least as assessed by DXA, as predictors of fractures. Muscle strength and performance are modifiable risk factors. Resistance exercise improves muscle parameters in the elderly, potentially leading to reduced risk of falls and fractures in the general population and in those who sustained a fracture. Therapists may consider exercise intervention to improve muscle parameters and potentially reduce the risk of fractures. The aim of this review was to explore 1) the contribution of muscle parameters (i.e., muscle mass, strength, and physical performance) to fracture risk in older adults, and 2) the added predictive accuracy of these parameters beyond the existing fracture assessment tools. These topics provide the rationale for investigating strength and physical performance interventions to reduce fracture risk. Most of the included publications showed that muscle mass is not a good predictor of fracture risk, while poor muscle strength and performance are associated with an increased risk of fracture, particularly in men, independent of age, BMD, and other risk factors for fractures. Muscle strength and performance can potentially improve the predictive accuracy in men beyond that obtained by the fracture risk assessment tools, Garvan FRC and FRAX. • Muscle strength and physical performance are associated with fracture risk. • Their rate of decline is associated with fractures independent of baseline values. • Muscle strength and physical performance significantly improve fracture prediction. • DXA-measured muscle mass shows inconsistent association with fracture risk. [ABSTRACT FROM AUTHOR]

Ballet training is being increasingly used to improve physical functions in older adults. Our previous work showed that ballet dancers react to a novel standing-slip more effectively than their non-dancer counterparts through better control of the recovery step and trunk movement. The purpose of this study was to test if and to what extent ballet dancers adapt differently to repeated standing-slips relative to non-dancers. Protected by a harness, twenty young adults (10 professional ballet dancers and 10 age/sex-matched non-dancers) experienced five repeated and standardized standing-slips on a treadmill. Changes from the first slip (S1) to the fifth slip (S5) in dynamic gait stability (primary outcome) and other variables, including the center of mass position and velocity, step latency, slip distance, ankle angle, and trunk angle (secondary outcomes) were compared between groups. Results revealed that both groups adopted similar proactive controls to improve dynamic gait stability by using the ankle and hip strategies. However, dancers showed a better reactive improvement in stability after the repeated slips than non-dancers. From S1 to S5, dancers reactively improved their dynamic gait stability more than non-dancers at the recovery step liftoff (p = 0.003). Dancers decreased their recovery step latency (p = 0.004) and shortened the slip distance (p = 0.004) significantly more than non-dancers from S1 to S5. These findings suggest that ballet dancers could facilitate the adaptation to repeated slips, which may be attributed to their ballet practice experience. This finding augments our understanding of the underlying mechanisms of ballet practice reducing falls. [ABSTRACT FROM AUTHOR]

Frailty is a geriatric syndrome characterized by sarcopenia and physiological impairment. Although the majority of older adults wish to age at home, being frail threatens this choice since it increases the risk of falls and loss of functional independence. Hence, frailty screening and early detection are needed to stop or at least slow down the physical weakening process. In this paper, we present a review in which we discuss the proposed methods from the literature that targets frailty detection and analysis, starting from traditional clinical tools then introducing data-driven studies before highlighting the importance of fully automated systems. We conducted a review study by searching several databases such as Google Scholar, IEEE Xplore, MDPI, and ScienceDirect to name a few. This work presents clinical tools and classical performance tests to assess the health status and the physical function, as well as statistical and observational studies to analyze the frailty syndrome. Moreover, we discuss briefly the work of our research team in this context, represented by the development of a telemonitoring system which aims at the transition from a curative to a preventive model. Firstly, this review points out the absence of a gold standard to detect frailty in older individuals. Secondly, it discusses the limitations of self-reported measures/questionnaires and other traditional performance tests which are based on subjective data and done under supervised conditions. Thirdly, our study emphasizes the lack of robust approaches that target the early detection of frailty and the prediction of a future risk of physical worsening. We propose new research directions based, on the one hand, on automatic activity identification and tracking and, on the other hand, on the analysis of spontaneous speech of elderly. This paper describes research findings and highlights the existing gaps in the context of frailty, and serves as a state of the art for researchers. Additionally, this work suggests future research directions regarding the early detection and prevention of frailty. [ABSTRACT FROM AUTHOR]

Neurogenic claudication due to lumbar spinal stenosis (LSS) is a growing health problem in older adults. Our 2013 Cochrane systematic review assessing the effectiveness of nonoperative treatments for neurogenic claudication found only low and very low-quality evidence. Therefore, no conclusions could be made on the effectiveness of nonoperative treatment for neurogenic claudication. The purpose of this study is to update the evidence for nonoperative treatments for neurogenic claudication due to LSS. Our specific research question was: What nonoperative interventions are effective in improving outcomes in patients with neurogenic claudication due to LSS? This systematic review was registered with PROSPERO registration number CRD42020191860 and was conducted and reported according to the PRISMA guidelines. The population of interest was individuals with imaging confirming LSS and neurogenic claudication. Neurogenic claudication was defined as buttock or leg pain and/or aching, numbness, tingling, weakness or fatigue with or without back pain, precipitated by standing or walking and improved with stooping forward and/or sitting. There were no age restrictions. Outcomes included at least one of the following measures: walking ability, pain intensity, physical function, quality of life, or global improvement. We replicated and updated our original electronic database search to July 22, 2020. The search was performed in CENTRAL (Cochrane Library 2011 issue1), Medline, EMBASE, CINAHL and Index to Chiropractic Literature. We only included RCTs published in English where at least one arm provided data on nonoperative treatment and included participants diagnosed with neurogenic claudication with imaging confirmed LSS. The interventions of interest included all nonoperative treatments and the comparison was any treatment including surgery. Two independent reviewers extracted data and assessed risk of bias using the Cochrane Risk of Bias Tool One. Grading of Recommendations Assessment, Development, and Evaluation (GRADE) was used for evidence synthesis. Of 15,200 citations screened, 156 were assessed and 23 new trials were identified. There is moderate quality evidence from three trials that: manual therapy and exercise provide superior and clinically important short-term improvement in symptoms and function compared to medical care or community-based group exercise; manual therapy, education and exercise delivered using a cognitive-behavioral approach, demonstrate superior and clinically important improvements in walking distance in the immediate to long-term compared to self-directed home exercises; glucocorticoid plus lidocaine injection is more effective than lidocaine alone in improving statistical, but not clinically important improvements in pain and function in the short-term. The remaining 20 new trials demonstrated low or very low-quality evidence for all comparisons and outcomes, like the findings of our original review. There is moderate quality evidence that a multimodal approach which includes manual therapy and exercise, with or without education is an effective treatment, and that epidural steroids are not effective for the management of LSS with neurogenic claudication. All other nonoperative interventions provided insufficient quality evidence to make conclusions on their effectiveness This abstract does not discuss or include any applicable devices or drugs. [ABSTRACT FROM AUTHOR]

Falls and decreased physical function increase markedly with age and result in injury, hospitalization, and premature death. Emerging studies show potential benefits of supplemental cocoa extract on physical performance, including grip strength and walking speed in older adults. However, there are no large, long-term randomized controlled trials of effects of supplemental cocoa extract on falls, muscle performance, and/or fall-related injuries. The COcoa Supplement and Multivitamin Outcomes Study (COSMOS) is a double-blind, placebo-controlled, 2 × 2 factorial trial investigating effects of supplementation with cocoa extract (500 mg/d, including 80 mg (−)-epicatechin) and/or a multivitamin on prevention of cardiovascular disease and cancer in 21,442 women (≥65 years) and men (≥60 years). COSMOS: Effects on Falls and Physical Performance is an ancillary study to COSMOS that will clarify effects of cocoa extract and/or multivitamin supplementation on falls, physical performance, and incident fracture outcomes in older adults. Injurious fall(s) resulting in healthcare utilization and recurrent falls were regularly assessed by follow-up questionnaires in the overall cohort. Incident fractures were also assessed by annual questionnaires. Circumstances surrounding falls and any fall-related injuries will be confirmed by medical record review. Effects of the interventions on 2-year changes in physical performance measures (grip strength, walking speed, and the Short Physical Performance Battery) will be tested in a clinic sub-cohort (n = 603). Results from this ancillary study will determine whether supplemental cocoa extract slows age-related declines in physical performance and decrease injurious and recurrent falls and fall-related injuries and fractures that are major public health problems in older adults. [ABSTRACT FROM AUTHOR]

Understanding the relationships between built environment features and metro ridership is crucial to transit-oriented development (TOD). This study proposes a geographically weighted regression model based on metro network distance (ND-GWR) to capture the local patterns of relationships between the built environment (BE) and station-level metro ridership. The ND-GWR calculates network distances rather than traditional distance metrics (e.g., Euclidean, Manhattan, or Minkowski) to calibrate the spatial weight matrix, which can more truly characterize the associations among stations in the real world. Five types of independent variables, including demographic, land use, network, transfer, and station characteristics, are calculated by an exponential distance-decay function. This study also compares the modeling results across holidays, weekdays, and weekends to analyze temporal variations of BE's effects. Using data collected in 2019 in Shenzhen, China, the modeling results show that (1) the integration of ND-GWR and the decay-distance function can estimate the relationships between BE variables and metro ridership with higher accuracy; (2) bike-metro access-integrated use has positive impacts on metro ridership, and it presents more significant in the city periphery and on weekdays; (3) senior citizens (aged over 60) are unwilling to use the metro service due to the defect of their physical functions. The negative effects exhibit smaller in the city center and on holidays; (4) whether the effects of BE variables vary over space is highly affected by when the event happened. The findings are expected to provide insights for calibrating spatial models and increasing the attractiveness of metro systems. [ABSTRACT FROM AUTHOR]

The present study explored cross-sectional and longitudinal associations between protein intake and physical function in older adults. We conducted a systematic review and meta-analysis of cross-sectional and longitudinal studies that investigated the association between protein intake and measures of physical function in older adults. Cross-sectional, case-control, and longitudinal cohort studies that investigated the association between protein intake and physical function as a primary or secondary outcome in people aged 60 + years were included. Studies published in languages other than English, Italian, Portuguese, or Spanish were excluded. Studies were retrieved from MEDLINE, SCOPUS, EMBASE, CINAHL, AgeLine, and Food Science Source databases through January 31, 2022. A pooled effect size was calculated based on standard mean differences (SMD), MD, log odds ratio (OR) and Z-score.. Twenty-two cross-sectional studies examined a total of 11,332 community-dwellers, hospitalized older adults, and elite senior athletes with a mean age of approximately 75 years. The pooled analysis indicated that a protein intake higher than the recommended dietary allowance (RDA) was significantly associated with higher Short Physical Performance Battery (SPPB) scores (SMD: 0.63, 95% CI: 0.27, 0.99, P-value: 0.0006), faster walking speed, greater lower-limb (SMD: 0.22, 95% CI: 0.04, 0.40, P-value: 0.02) and isometric handgrip strength (Z-score: 0.087, 95% CI: 0.046–0.128, P-value: 0.0001), and better balance (SMD: 0.33, 95% CI: 0.05, 0.62, P-value: 0.02). Nine longitudinal studies investigated 12,424 community-dwelling and native older adults with a mean age of approximately 85 years. A protein intake higher than the current RDA was not associated with lower decline in either isometric handgrip strength (logOR: 0.99, 95% CI: 0.97–1.02, P-value= 0.67) or walking speed (logOR: 0.92, 95% CI: 0.77–1.10, P-value= 0.35). A protein intake higher than the RDA is cross-sectionally associated with better physical performance and greater muscle strength in older adults. However, a high consumption of proteins does not seem to prevent physical function decline over time. • A protein intake higher than the current RDA is significantly associated with numerous several physical performance tests. • A protein intake higher than the current RDA is not longitudinally associated with upper-limb muscle strength and mobility. • No clear associations were found between protein distribution or sources and physical function. [ABSTRACT FROM AUTHOR]

Sarcopenia is an age-related neuromuscular disease characterized by substantial muscle atrophy, dynapenia and/or loss of physical function. Sarcopenia progression increases the risk for numerous negative events, including falls, disability, hospitalization, nursing home placement, and death. As such, this condition is recognized as an important topic in gerontology and geriatrics. The best approach to counteract the development and progression of sarcopenia is actively debated. Resistance training (RT) has received special attention in this context, owing to the large number of studies showing its ability to produce significant improvements in sarcopenia-related parameters. Recommendations to guide RT prescription for older adults with different conditions, including people who have traits of sarcopenia, have been published. Some authors have argued that RT guidelines for older adults are similar to one another, which may indicate that the presence of sarcopenia does not require specific physical exercise programs. However, older people with sarcopenia might present with peculiar physical, biomechanical, physiological, and psychosocial characteristics that, in our view, are not taken into adequate consideration in existing exercise guidelines. Here, we present evidence to support the view that RT prescription for older adults with sarcopenia is complex, multifactorial, and still needs more evidence. • Resistance training guidelines for sarcopenia and robust people are similar. • Sarcopenia might be associated with physical, biomechanical, and psychosocial changes. • The coexistence of sarcopenia with other conditions provides additional clinical consequences; • People with sarcopenia require specific resistance training programs. [ABSTRACT FROM AUTHOR]

This systematic review with meta-analysis aimed to compare the changes caused by exercise intervention with those provoked by usual care on physical function biomarkers in older adults immediately after hospital discharge. Two independent authors performed a systematic search (PubMed, Scopus, Web of Science, and SciELO) of studies published from database inception until August 2021. Randomized clinical trials investigating the effects of an exercise intervention compared to usual care were included. The Cochrane Collaboration assessment tool was used to analyze the risk of bias. The comparisons included handgrip strength, the short physical performance battery scale, six-minute walking test, and 10-m gait speed. Overall, the exercise intervention led to significantly greater changes compared to usual care in physical function biomarkers [standard mean difference = 0.89, 95% CI = 0.39, 1.42; P = 0.001]. However, considering the very few studies investigating each variable separately, our sub-analysis did not reveal a significant effect of the exercise intervention on handgrip strength, the short physical performance battery, six minutes walking test, and 10-m gait speed. This systematic review with meta-analysis of randomized clinical trials suggests that exercise intervention induce greater physical function biomarker alterations in older adults after hospitalization than usual care including physical activity guidance. Future trials comparing the effects of these intervention groups on physical function biomarkers in this population are needed to confirm our results. Potential mechanism involved in mitigating impairments in physiological resilience and declines in physical function biomarkers induced by exercise interventions in older adults after hospital discharge. [Display omitted] • Acute hospitalization causes an impact dramatic and permanent on physical function biomarkers during hospital-based care. • Vulnerability conferred by hospitalization in older adults leads to impairment in these biomarkers also after discharge. • Exercise intervention is better than usual care to improve physical function biomarkers in older adults after discharge. • Exercise intervention might help older adults recover from adverse effects caused by hospitalization also after discharge. [ABSTRACT FROM AUTHOR]

Home-based physical therapies are effective if the prescribed exercises are correctly executed and patients adhere to these routines. This is specially important for older adults who can easily forget the guidelines from therapists. Inertial Measurement Units (IMUs) are commonly used for tracking exercise execution giving information of patients' motion data. In this work, we propose the use of Machine Learning techniques to recognize which exercise is being carried out and to assess if the recognized exercise is properly executed by using data from four IMUs placed on the person limbs. To the best of our knowledge, both tasks have never been addressed together as a unique complex task before. However, their combination is needed for the complete characterization of the performance of physical therapies. We evaluate the performance of six machine learning classifiers in three contexts: recognition and evaluation in a single classifier, recognition of correct exercises, excluding the wrongly performed exercises, and a two-stage approach that first recognizes the exercise and then evaluates it. We apply our proposal to a set of 8 exercises of the upper-and lower-limbs designed for maintaining elderly people health status. To do so, the motion of 30 volunteers were monitored with 4 IMUs. We obtain accuracies of 88. 4 % and the 91. 4 % in the two initial scenarios. In the third one, the recognition provides an accuracy of 96. 2 %, whereas the exercise evaluation varies between 93. 6 % and 100. 0 %. This work proves the feasibility of IMUs for a complete monitoring of physical therapies in which we can get information of which exercise is being performed and its quality, as a basis for designing virtual coaches. [Display omitted] • This work covers the complex task of simultaneous exercise recognition and evaluation. • The exercises are characterized using data from four IMUs on the limbs. • Support Vector Machine provides the best metrics compare with other ML algorithms. • Motion recognition is less demanding than its evaluation due to the posture influence. • The inertial data used are publicly available. [ABSTRACT FROM AUTHOR]

Substantial evidence suggests physical exercise may sustain cognitive function and perhaps prevent Alzheimer's Disease (1, 2). Current public health recommendations call for older adults to do at least 150 min a week of aerobic exercise (e.g. walking) and twice a week resistance exercise (e.g. weight lifting) for physical health. Yet, much remains unknown about how these exercise modalities support brain health independently or in combination. The COMbined Exercise Trial (COMET) is designed to test the combined and independent effects of aerobic and resistance training specifically focusing on exercise-related changes in 1) cognitive performance, 2) regional brain volume, 3) physical function, and 4) blood-based factors. To explore these questions, we will enroll 280 cognitively normal older adults, age 65–80 years, into a 52-week community-based exercise program. Participants will be randomized into one of four arms: 1) flexibility/toning- control 2) 150 min of aerobic exercise only, 3) progressive resistance training only, or 4) combined aerobic and progressive resistance training. Outcomes assessed include a comprehensive cognitive battery, blood biomarkers, brain magnetic resonance imaging, physiological biomarkers, cardiorespiratory fitness, physical function, and battery of psychosocial questionnaires is assessed at baseline, 6 and 12-months. COMET will provide rigorous randomized controlled trial data to understand the effects of the most common exercise modalities, and their combination (i.e., the standard public health recommendation), on brain health. [ABSTRACT FROM AUTHOR]

The loss of muscle mass, strength and function, known as sarcopenia, is common in older adults, and is associated with falls, fractures, cardiometabolic diseases, and lower quality of life. Sarcopenia can also occur secondarily to chronic diseases. Recently, sarcopenia was recognized as a disease with an International Classification of Disease (ICD) code, yet, at least five definitions for its clinical identification exist. Most definitions include three themes: low muscle mass, strength and physical performance. However, the definitions vary by the number of themes needed to diagnose sarcopenia and, within each theme various parameters and cut-off levels exist. The lack of consensus on what constitutes a diagnosis can create confusion and hesitation in sarcopenia diagnosis. Currently, no pharmacological treatment exists for sarcopenia. Resistance training (RT) is safe and effective to improve muscle mass, strength and physical performance in older adults and clinical populations. Based on current guidelines, whether an individual is defined as "sarcopenic", or not, does not change the way RT is prescribed. Here, we present evidence and the inconsistencies in sarcopenia definitions and recommend that focus should be on optimizing ways to prescribe RT and increase long-term adherence, rather than on slight modifications to sarcopenia definitions. • Lack of consensus of the sarcopenia definition creates confusion for its diagnosis. • Resistance training guidelines for healthy adults and clinical populations are similar. • Presence of sarcopenia does not change the way resistance training is prescribed. • Future focus should be on increasing exercise engagement and long term adherence. [ABSTRACT FROM AUTHOR]