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To examine sensitivity to change and responsiveness of the Community Balance and Mobility Scale (CBM) and shortened CBM (s-CBM). Secondary analysis using data of a randomized controlled trial. General community. Young community-dwelling seniors aged 61-70 years (N=134; mean age, 66.2±2.5y). Participants underwent 12 months of exercise intervention. CBM and s-CBM. Sensitivity to change was assessed using standardized response mean (SRM) and paired t tests as appropriate. Responsiveness was assessed using 2 minimal important difference (MID) estimates. Analyses were conducted for the full sample and for the subgroups "high-balance" and "low-balance," divided by median split. Inferential statistics revealed a significant CBM (P <.001) and s-CBM (P <.001) improvement within the full sample and the subgroups (high-balance: P =.001, P =.019; low-balance: P <.001, P <.001). CBM and s-CBM were moderately sensitive to change (SRM, 0.48 vs 0.38) within the full sample. In the high-balance subgroup, moderate SRM values (0.70) were found for the CBM and small values for the s-CBM (0.29). In the low-balance subgroup, moderate SRM values were found for the CBM (0.67) and high values for the s-CBM (0.80). For the full sample, CBM and s-CBM exceeded the lower but not the higher MID value. In the high-balance subgroup, the CBM exceeded both MID values, but the s-CBM exceeded only the lower. In the low-balance subgroup, CBM and s-CBM exceeded both MID values. The CBM is a suitable tool to detect intervention-related changes of balance and mobility in young, high-performing seniors. Both versions of the CBM scale show good sensitivity to change and responsiveness, particularly in young seniors with low balance. [ABSTRACT FROM AUTHOR]

Objectives: To explore the relationship between cognitive performance and falls in older people with mild to moderate cognitive impairment (CI) by investigating the mediational effects of medical, medication, neuropsychological, and physiological factors.Design: Secondary analysis, prospective cohort study.Setting: Community and low-level care.Participants: 177 older people (aged 82 ± 7 years) with mild to moderate CI (MMSE 11-23; ACE-R < 83).Measurements: Global cognition and six neuropsychological domains (memory, language, visuospatial, processing speed, executive function [EF], and affect) were assessed. Participants also underwent sensorimotor and balance assessments. Falls were recorded prospectively for 12 months.Results: The EF domain was most strongly associated with multiple falls (relative risk [RR]: 1.50, 95% CI: 1.18-1.91). Global cognition was not associated with falls (RR: 1.09, 95% CI: 0.92-1.30). Additional analyses showed that participants with poorer EF (median cutpoint) were more likely to be taking centrally acting medications and were less physically active. They also had significantly worse vision, reaction time, knee extension strength, balance (postural sway, controlled leaning balance), and higher physiological fall risk scores. Participants with poorer EF were 1.5 times (RR: 1.50, 95% CI: 1.03-2.18) more likely to have multiple falls. Mediational analyses demonstrated that reaction time and postural sway reduced the relative risk of EF on multiple falls by 31% (RR: 1.19, 95% CI: 0.81-1.74).Conclusions: Within this sample of older people with mild to moderate CI, poorer EF increased the risk of multiple falls. This relationship was mediated by reaction time and postural sway,suggesting cognitively impaired older people with poorer EF may benefit from fall prevention programs targeting these mediating factors. [ABSTRACT FROM AUTHOR]

Abstract Background Awareness of physical ability may impact fall risk during everyday tasks. Therefore, we investigated perceived reach (PR; estimation of furthest reach distance), maximal reach (MR) and reach judgement error (RJE), and their relationships with neuropsychological and physical performance, and falls in older people with cognitive impairment (CI). Methods Prospective cohort study of 110 (mean age = 82 ± 7 years; female = 52%) older people with mild-moderate CI (MMSE 11–23; Addenbrooke's Cognitive Examination-Revised (ACE-R) < 83). PR, MR and detailed neuropsychological and physical assessments were assessed at baseline. Participants were divided into tertiles based on their absolute RJE. Falls were recorded prospectively over 12 months with the assistance of carers. Results The populations mean MR was 79 ± 10 cm and PR was 75 ± 13 cm, indicating participants tended to underestimate their reach ability. The large RJE tertile performed significantly poorer in measures of global cognition (ACE-R; OR 0.54 95%CI 0.31–0.95) and executive function (Trail Making Test B; OR 1.84 95%CI 1.00–3.36) and had increased concern about falling (Falls Efficacy Scale-International; OR 2.01 95% CI 1.06–3.79) compared to the minimal RJE tertile. The moderate and large RJE tertile groups had significantly slower hand reaction time and larger postural sway on foam compared to the minimal RJE tertile. Each 1% increase in RJE increased the risk of falls by 2% (RR 1.02 95%CI 1.01–1.03). This relationship withstood adjustment for other fall risk factors (sway on foam, Trail Making Test B and ACE-R). Conclusions Inaccurate reach judgement predicts future falls and is associated with poorer global cognitive performance and executive function, increased concern about falling, slower reaction time and poorer balance. Our results offer insight into the disparity between actual and perceived physical capabilities in people with CI, and how this impacts their risk of falling. Highlights • Judgement error measures the disparity between perceived and actual ability. • Absolute reach judgement error (RJE) predicts falls in cognitively impaired older people. • Larger RJEs were associated with poorer physical and cognitive abilities. • Even so, the RJE-falls relationship was independent of balance, executive and global cognitive function. • RJE may represent a new, complementary, fall risk assessment measure. [ABSTRACT FROM AUTHOR]

Objectives This study aimed to document change in neuropsychological, physical and functional performance over one year and to investigate the relationship between baseline gait speed and cognitive decline in this period in older people with dementia. Methods One hundred and seventy-seven older people with dementia (Mini-Mental State Examination 11–23; Addenbrooke’s Cognitive Examination-Revised <83) residing in the community or low level care facility completed baseline neuropsychological, physical and functional assessments. Of these, 134 participants agreed to reassessment of the above measures one year later. Results Overall, many neuropsychological, physical and functional performance measures declined significantly over the one year study period. Baseline gait speed was significantly associated with decline in verbal fluency (B(109) = 2.893, p = 0.046), specifically phonemic/letter fluency (B(109) = 2.812, p = 0.004) while controlling for age, education, dementia drug use and baseline cognitive performance. There was also a trend for an association between baseline gait speed and decline in clock drawing performance (B(107) = 0.601, p = 0.071). Conclusions Older people with mild to moderate dementia demonstrate significant decline in neuropsychological, physical and functional performance over one year. Baseline gait speed is associated with decline in executive function over one year, suggesting shared pathways/pathology between gait and cognition. [ABSTRACT FROM AUTHOR]