41,693 results on '"PHYSIOLOGICAL STRESS"'
Search Results
2. Reconstructing health on the Danube limes: Evidence from eastern Austria
- Author
-
Sammut, Sammuel
- Published
- 2025
- Full Text
- View/download PDF
3. Association between biological kinship and lifestyle in the Hellenistic-early Roman community of Menainon, Sicily
- Author
-
Caruso, Antonio and Nikita, Efthymia
- Published
- 2025
- Full Text
- View/download PDF
4. Depression and cardiovascular reactions to acute psychological stress: Is anhedonia the driver?
- Author
-
Whiston, Aoife, Keogh, Tracey M., Howard, Siobhán, and Gallagher, Stephen
- Published
- 2025
- Full Text
- View/download PDF
5. Health and well-being in Medieval Estremoz, Portugal: Uncovering the diet and longevity of a distinct and thriving community
- Author
-
Curto, Ana, Navarrete, Vanessa, Maurer, Anne-France, Dias, Cristina Barrocas, and Fernandes, Teresa
- Published
- 2025
- Full Text
- View/download PDF
6. Developmental temperature modulates microplastics impact on amphibian life history without affecting ontogenetic microplastic transfer
- Author
-
Park, Jun-Kyu and Do, Yuno
- Published
- 2024
- Full Text
- View/download PDF
7. Factors affecting followers' behavior intentions on parenting-related social media: self-image congruity, function congruity, brand attachment and parenting stress.
- Author
-
Zhang, Xiaoling
- Subjects
INFLUENCER marketing ,CONSUMER psychology ,INFORMATION-seeking behavior ,PHYSIOLOGICAL stress ,SELF-perception - Abstract
Pregnancy and the transition to being a parent bring about significant physiological change and stress, which lead them to turn to social media influencers (SMIs) to seek information and help. This study examines the effects of followers' psychological characteristics on the influencer-follower relationship in parenting-related influencer marketing and how parenting-related SMIs can manage themselves as human brands. The empirical findings indicate that followers' perceived self-image congruity and function congruity with social media influencers enhance their behaviour intentions, mediated by SMI attachment. Although perceived parenting stress does not correlate with function congruity on SMI attachment, it plays a moderating role as it weakens the positive impact of self-image congruity on SMI attachment. The results have discussed important implications for both parenting-related SMIs and marketers. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
8. Spring-Mass Characteristics in Runners Before and After a 56-km Road Ultramarathon.
- Author
-
Burns, Geoffrey T., Tam, Nicholas, Langerak, Nelleke G., Zernicke, Ronald F., and Lamberts, Robert P.
- Subjects
MUSCLE fatigue ,LONG-distance running ,DYNAMICS ,DIAGNOSIS ,GAIT in humans ,DESCRIPTIVE statistics ,ATHLETES ,HEALTH behavior ,PHYSIOLOGICAL stress ,GROUND reaction forces (Biomechanics) ,REGRESSION analysis - Abstract
Ultramarathons are a unique model to study the effects of systemic fatigue in athletes. This investigation applied the spring-mass template to study runners before and 2 days after a road ultramarathon to characterize the effects of fatigue on systemic gait patterns. Overground kinetics were captured 7 days before and 2 days after the event in 14 runners. Traditional kinetic and spring-mass parameters were calculated, along with nonlinear regression-derived parameters and spring-mass model fit metrics. After the ultramarathon, vertical force magnitudes and loading rates were unchanged, but impact peaks increased (1.88 ± 0.08–1.95 ± 0.10 bodyweight). Ground contact times were modestly shorter (−3 ± 1 ms), resulting in increased leg stiffness (10.0 ± 0.5–10.3 ± 0.5 kN/m) with equivocal vertical stiffnesses. The deviation from the modeled spring-mass kinetics also increased (171.3 ± 15.0–181.4 ± 16.5 N). Overall, the systemic mechanical behaviors of the runners persisted despite the fatigue and stress induced by a road ultramarathon. These findings support previous observations that runners maintain gross mechanical behavior when fatigued with small compensatory changes in spatiotemporal and traditional spring-mass characteristics. However, these findings also suggest that the variability within that gross behavior may increase after stress, suggesting new opportunities for quantifying those deviations. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
9. Associations of prenatal and childhood Pb exposure with allostatic load in adolescence: Findings from the ELEMENT cohort study
- Author
-
Halabicky, O.M., Téllez-Rojo, M.M., Miller, A.L., Goodrich, J.M., Dolinoy, D.C., Hu, H., and Peterson, K.E.
- Published
- 2023
- Full Text
- View/download PDF
10. Design and Biomechanical Analysis of a Customized Angled Abutment Based on Tooth Inclination for Immediate Implant Placement in the Anterior Maxilla.
- Author
-
Chih-Ching Chi, Yen-Wen Shen, Jui-Ting Hsu, Lih-Jyh Fuh, and Heng-Li Huang
- Subjects
IN vitro studies ,DENTAL implants ,DENTAL abutments ,PHENOMENOLOGICAL biology ,RESEARCH funding ,COMPUTED tomography ,BIOCHEMISTRY ,FINITE element method ,AGE distribution ,INCISORS ,MAXILLA ,PHYSIOLOGICAL stress ,COMPARATIVE studies ,PROSTHESIS design & construction - Abstract
Purpose: To perform a finite element analysis (FEA) and an in vitro experiment to investigate and compare the loading effects (effects on the implant and surrounding bone) of various customized angled abutments to commercial 15-degree angled abutments (control). Materials and Methods: Four customized angled abutment models (21.9, 24.15, 20.22, and 33 degrees) were developed using CBCT images of incisor inclination measurements from patients of various age groups (20 to 23, 24 to 39, and 40 to 65 years). 3D maxillary bone models were created from the CBCT images of four individual patients: One patient from each age group with the respective average incisor inclination measurement and another patient with the overall average were selected. Then, FEA and in vitro strain gauge experiments were conducted by applying 100 N or 50 N of axial or oblique force to each model in order to assess the differences in stress/strain between the customized angled abutments (test) and the control in both the implants and surrounding bone. Results: Under axial loading, the stress values in the implant and surrounding bone were elevated due to the relatively higher angles of the customized angled abutments (21.9, 24.15, 20.22, and 33 degrees) compared to the control angled abutments. Under oblique loading, the control angled abutments exhibited higher stress values in both the implant and surrounding bone. For the in vitro experiment, there was no statistically significant difference in bone strain between the customized (21.9 degree) and the control angled abutments in axial loading. Nevertheless, the control angled abutment with oblique loading induced greater bone strains. Conclusions: Customized angled abutments offer lower stress/strain under oblique loads but higher stress/strain under axial loads compared to the control abutments. Therefore, in the design and application of angled abutments, careful consideration of the occlusal load direction is important for achieving the biomechanical success of an implant. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
11. Stress Drives Soccer Athletes' Wellness and Movement: Using Convergent Cross-Mapping to Identify Causal Relationships in a Dynamic Environment.
- Author
-
Stern, Benjamin D., Deyle, Ethan R., Hegedus, Eric J., Munch, Stephan B., and Saberski, Erik
- Subjects
PSYCHOLOGY of athletes ,RISK assessment ,MYALGIA ,SOCCER ,HEALTH ,ACCELEROMETRY ,PHYSICAL training & conditioning ,GLOBAL Positioning System ,PSYCHOLOGICAL stress ,CAUSALITY (Physics) ,SPORTS events ,BODY movement ,PHYSIOLOGICAL stress ,SLEEP quality - Abstract
Purpose: Prediction of athlete wellness is difficult—or, many sports-medicine practitioners and scientists would argue, impossible. Instead, one settles for correlational relationships of variables gathered at fixed moments in time. The issue may be an inherent mismatch between usual methods of data collection and analysis and the complex nature of the variables governing athlete wellness. Variables such as external load, stress, muscle soreness, and sleep quality may affect each other and wellness in a dynamic, nonlinear, way over time. In such an environment, traditional data-collection methods and statistics will fail to capture causal effects. If we are to move this area of sport science forward, a different approach is required. Methods: We analyzed data from 2 different soccer teams that showed no significance between player load and wellness or among individual measures of wellness. Our analysis used methods of attractor reconstruction to examine possible causal relationships between GPS/accelerometer-measured external training load and wellness variables. Results: Our analysis showed that player self-rated stress, a component of wellness, seems a fundamental driving variable. The influence of stress is so great that stress can predict other components of athlete wellness, and, in turn, self-rated stress can be predicted by observing a player's load data. Conclusion: We demonstrate the ability of nonlinear methods to identify interactions between and among variables to predict future athlete stress. These relationships are indicative of the causal relationships playing out in athlete wellness over the course of a soccer season. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
12. An Investigation of the Sled-Push Exercise Using a Resisted Sled Machine in Apparently Healthy Older Adults: An Exploratory Study.
- Author
-
Baumann, Micheal, Hill, Christopher, Camic, Clayton, Chomentowski, Peter, Siqueira, Vitor, Petruzzello, Steven, and Sebastião, Emerson
- Subjects
EXERCISE physiology ,EXERCISE ,EXERCISE therapy ,STATISTICAL sampling ,PILOT projects ,RANDOMIZED controlled trials ,EXERCISE intensity ,RESISTANCE training ,WALKING ,HEART beat ,BLOOD pressure ,LACTIC acid ,PHYSIOLOGICAL stress ,ACTIVE aging - Abstract
Physical function is regarded as the cornerstone of healthy aging, and exercise is an important determinant of healthy aging. This study examined the feasibility and physiological (heart rate, blood pressure, blood lactate, and rate of perceived exertion) and psychological (enjoyment) response resulting from an acute progressive sled-push (SLP) exercise session using the novel XPO Sled Trainer in older adults and compared that with walking (WKC) condition. The exercise session comprised six exercise bouts at 75%, 85%, 100% (2×), and 125% (2×) of normal velocity with a 2-min rest between bouts. Thirty-six older adults were randomly allocated into either the SLP or WKC conditions. No adverse events were observed during the exercise session, and all participants completed the exercise protocol as prescribed. One-third of the participants in the SLP group reported minimal body discomfort. Significantly higher responses were observed for all physiological variables as the intensity of the exercise increased in the SLP group compared with the WKC group (p <.001). The SLP group presented a decline in enjoyment as the intensity of the exercise increased (during), but similar enjoyment level than the WKC group for the overall exercise session (p =.711). Our findings support the viability and safety of SLP exercise using the XPO Sled Trainer in older adults. Such exercise demonstrated an intensity-driven modality that may have potential to elucidate positive adaptations in the cardiovascular system of older adults with acceptable levels of enjoyment. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
13. Psychological impact of COVID-19 pandemic on Parkinson's disease patients
- Author
-
Tufail, Muhammad and Wu, Changxin
- Published
- 2022
- Full Text
- View/download PDF
14. Is Greener Better? Quantifying the Impact of a Nature Walk on Stress Reduction Using HRV and Saliva Cortisol Biomarkers.
- Author
-
Aras, Shravan, Runyon, J, Kazman, Josh, Thayer, Julian, Sternberg, Esther, and Deuster, Patricia
- Subjects
Green Road ,heart rate variability ,mood disturbances ,physiological stress ,saliva cortisol biomarkers ,urban road ,Humans ,Hydrocortisone ,Saliva ,Walking ,Heart Rate ,Male ,Adult ,Female ,Biomarkers ,Stress ,Psychological ,Affect ,Stress ,Physiological ,Young Adult ,Nature ,Middle Aged - Abstract
The physiological impact of walking in nature was quantified via continuous heart rate variability (HRV), pre- and post-walk saliva cortisol measures, and self-reported mood and mindfulness scores for N = 17 participants who walked The Green Road at Walter Reed National Military Medical Center in Bethesda, Maryland. For N = 15 of the participants, HRV analysis revealed two main groups: group one individuals had a 104% increase (mean) in the root mean square standard deviation (RMSSD) and a 47% increase (mean) in the standard deviation of NN values (SDNN), indicating an overall reduction in physiological stress from walking the Green Road, and group two individuals had a decrease (mean) of 42% and 31% in these respective HRV metrics, signaling an increase in physiological stresses. Post-walk self-reported scores for vigor and mood disturbance were more robust for the Green Road than for a comparable urban road corridor and showed that a higher HRV during the walk was associated with improved overall mood. Saliva cortisol was lower after taking a walk for all participants, and it showed that walking the Green Road elicited a significantly larger reduction in cortisol of 53%, on average, when compared with 37% of walking along an urban road. It was also observed that the order in which individuals walked the Green Road and urban road also impacted their cortisol responses, with those walking the urban road before the Green Road showing a substantial reduction in cortisol, suggesting a possible attenuation effect of walking the Green Road first. These findings provide quantitative data demonstrating the stress-reducing effects of being in nature, thus supporting the health benefit value of providing access to nature more broadly in many settings.
- Published
- 2024
15. Exogenous application of melatonin to plants, algae, and harvested products to sustain agricultural productivity and enhance nutritional and nutraceutical value: A meta-analysis
- Author
-
Agathokleous, Evgenios, Zhou, Boya, Xu, Jianing, Ioannou, Andreas, Feng, Zhaozhong, Saitanis, Costas J., Frei, Michael, Calabrese, Edward J., and Fotopoulos, Vasileios
- Published
- 2021
- Full Text
- View/download PDF
16. Shading for water stress mitigation in Copaifera langsdorffii Desf. seedlings
- Author
-
Rosa, Derek Brito Chaim Jardim, Scalon, Silvana de Paula Quintão, and Dresch, Daiane Mugnol
- Published
- 2021
- Full Text
- View/download PDF
17. Relationship Between Objective and Subjective Markers of Muscle Recovery in Professional Handball Players.
- Author
-
Henze, Alexander-Stephan, Matits, Lynn, Huth, Jochen, and Mauch, Frieder
- Subjects
SKELETAL muscle physiology ,SCIENTIFIC observation ,CREATINE kinase ,CONVALESCENCE ,HANDBALL ,STATISTICS ,PHYSIOLOGICAL stress ,BIOMARKERS - Abstract
Purpose: To evaluate the relationship between items of the Short Recovery and Stress Scale (SRSS) related to physical stress and recovery and the biomarker creatine kinase (CK) in professional handball. Methods: CK and SRSS items (physical performance capability, overall recovery, muscular stress, and overall stress) were assessed in an observational study of 16 adult male professional handball players from a team in the highest German league during the 2019–20 preseason. Their preseason training schedule included several microcycles, each consisting of 3 consecutive days of intense training followed by a rest day. On 5 of these rest days, when players were classified as nonrested, and the 5 immediately following days, when players were classified as rested, players completed the SRSS between 8:00 and 9:00 AM, followed by blood sampling. Correlations between SRSS items were performed using Kendall τ. The relationship between each SRSS item and CK levels over time was examined using a mixed-effects model with a random intercept. Results: CK levels and SRSS stress items were significantly higher and SRSS recovery items were significantly lower in nonrested players. SRSS items were significantly positively or negatively correlated (all items: P <.001) and showed a significant effect indicating lower CK levels in rested players (all items: P ≤.001; η p 2 =.1 −.32). Conclusions: The investigated SRSS items may be a viable option for assessing muscle recovery in adult male professional handball players in a cost-effective and noninvasive manner. They can be used as a single monitoring tool or as part of a multimodal approach. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
18. Athlete Resilience Trajectories Across Competitive Training: The Influence of Physical and Psychological Stress.
- Author
-
Barczak-Scarboro, Nikki E., Kroshus, Emily, Pexa, Brett, Register Mihalik, Johna K., and DeFreese, J.D.
- Subjects
PSYCHOLOGICAL stress ,PHYSIOLOGICAL stress ,PHYSICAL training & conditioning ,PSYCHOLOGICAL resilience ,ATHLETE training ,ORGANIZATIONAL resilience - Abstract
Competitive sport involves physical and psychological stressors, such as training load and stress perceptions, that athletes must adapt to in order to maintain health and performance. Psychological resilience, one's capacity to equilibrate or adapt affective and behavioral responses to adverse physical or emotional experiences, is an important topic in athlete training and performance. The study purpose was to investigate associations of training load and perceived sport stress with athlete psychological resilience trajectories. Sixty-one collegiate club athletes (30 females and 31 males) completed self-reported surveys over 6 weeks of training. Athletes significantly differed in resilience at the beginning of competitive training. Baseline resilience differences were associated with resilience trajectories. Perceived stress and training load were negatively associated with resilience. Physical and psychological stressors had a small but statistically significant impact on resilience across weeks of competitive training, indicating that both types of stressors should be monitored to maintain athlete resilience. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
19. Effects of Powerchair Football: Contextual Factors That Impact Participation.
- Author
-
Vandenbergue, Aurelien, Barfield, J.P., Ahmaidi, Said, Williams, Stephanie, and Weissland, Thierry
- Subjects
- *
WHEELCHAIR soccer , *WHEELCHAIR sports , *SOCCER , *INTERVIEWING , *STATISTICAL sampling , *STRATEGIC planning , *SPORTS participation , *ATTITUDE (Psychology) , *SOUND recordings , *THEMATIC analysis , *ELECTRIC wheelchairs , *RESEARCH methodology , *PSYCHOLOGICAL stress , *PHYSIOLOGICAL stress , *PHYSICAL activity - Abstract
The aim of this study was to identify contextual factors that negatively affect activity and participation among powerchair football (PF) players. Thirty-seven semistructured interviews were conducted with PF players (Mage = 27.9 ± 8.2 years) in France (n = 18) and the United States (n = 19). Participants reported acute back and neck pain as the primary morbidities resulting from PF participation, with sustained atypical posture in the sport chair as the primary cause. Competition-related physical and mental stress were also identified as participation outcomes. Accompanying the many benefits of PF, participants recognized negative impacts of discomfort, physical fatigue, and mental fatigue. Interventions such as seating modifications, thermotherapy to combat pain, napping to combat acute physical stress, and mental preparation to manage state anxiety were all identified as prospective interventions. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
20. Biomarcadores musculares de estresse fisiológico na prática esportiva de competição: uma revisão sistemática.
- Author
-
Sá Fernandes, Ana Karênina, Gomes de Carvalho Leitão, José Carlos, Abelha Cortinhas, António José, Cunha de Oliveira, Ariclécio, and Carneiro Loureiro, Adriano César
- Subjects
PHYSIOLOGICAL stress ,SPORTS competitions ,FATIGUE cracks ,PRACTICE (Sports) ,CREATINE kinase - Abstract
Copyright of Retos: Nuevas Perspectivas de Educación Física, Deporte y Recreación is the property of Federacion Espanola de Asociaciones de Docentes de Educacion Fisica and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2025
- Full Text
- View/download PDF
21. Unveiling the silent defenders: mycobacterial stress sensors at the forefront to combat tuberculosis.
- Author
-
Jain, Manya and Vyas, Rajan
- Subjects
- *
CELL envelope (Biology) , *MYCOBACTERIUM tuberculosis , *PHYSIOLOGICAL stress , *DRUG design , *DRUG target - Abstract
AbstractThe global escalation in tuberculosis (TB) cases accompanied by the emergence of multidrug-resistant (MDR) and extensively drug-resistant (XDR) strains of
Mycobacterium tuberculosis (M.tb) emphasizes the critical requirement for novel potent drugs. TheM.tb demonstrates extraordinary adaptability, thriving in diverse conditions, and always finds itself in win-win situations regardless of whether the environment is favorable or unfavorable; no matter the magnitude of the challenge, it can endure and survive. This review aims to uncover the role of multiple stress sensors ofM.tb that assist bacteria in remaining viable within the host for years against various physiological stresses offered by the host.M.tb is an exceptionally triumphant pathogen, primarily due to its adeptness in developing defense mechanisms against stressful situations. The recent advances emphasize the significance ofM.tb stress sensors, including chaperones, proteases, transcription factors, riboswitches, inteins, etc., employed in responding to a spectrum of physiological stresses imposed by the host, encompassing surface stress, host immune responses, osmotic stress, oxidative and nitrosative stresses, cell envelope stress, environmental stress, reductive stress, and drug pressure. These sensors act as silent defenders orchestrating adaptive strategies, with limited comprehensive information in current literature, necessitating a focused review. TheM.tb strategies utilizing these stress sensors to mitigate the impact of traumatic conditions demand attention to neutralize this pathogen effectively. Moreover, the intricacies of these stress sensors provide potential targets to design an effective TB drug using structure-based drug design against this formidable global health threat. [ABSTRACT FROM AUTHOR]- Published
- 2025
- Full Text
- View/download PDF
22. Early identification of dropouts during the special forces selection program.
- Author
-
den Hartigh, Ruud J. R., Huijzer, Rik, Blaauw, Frank J., de Wit, Age, and de Jonge, Peter
- Subjects
- *
COGNITIVE psychology , *PHYSIOLOGICAL stress , *EMPLOYEE selection , *PSYCHOLOGICAL stress , *MILITARY personnel - Abstract
Recruits are exposed to high levels of psychological and physical stress during the special forces selection period, resulting in dropout rates of up to 80%. To identify who likely drops out, we assessed a group of 249 recruits, every week of the selection program, on their self-efficacy, motivation, experienced psychological and physical stress, and recovery. Using linear regression as well as state-of-the-art machine learning techniques, we aimed to build a model that could meaningfully predict dropout while remaining interpretable. Furthermore, we inspected the best-performing model to identify the most important predictors of dropout. Via cross-validation, we found that linear regression had a relatively good predictive performance with an Area Under the Curve of 0.69, and provided interpretable insights. Low levels of self-efficacy and motivation were the significant predictors of dropout. Additionally, we found that dropout could often be predicted multiple weeks in advance. These findings offer novel insights in the use of prediction models on psychological and physical processes, specifically in the context of special forces selection. This offers opportunities for early intervention and support, which may ultimately improve success rates of selection programs. [ABSTRACT FROM AUTHOR]
- Published
- 2025
- Full Text
- View/download PDF
23. A septo-hypothalamic-medullary circuit directs stress-induced analgesia.
- Author
-
Shah, Devanshi Piyush, Sharma, Pallavi Raj, Agarwal, Rachit, and Barik, Arnab
- Subjects
- *
RESTRAINT of patients , *IMMOBILIZATION stress , *PHYSIOLOGICAL stress , *PROSENCEPHALON , *NEURONS - Abstract
Stress is a potent modulator of pain. Specifically, acute stress due to physical restraint induces stress-induced analgesia (SIA). However, where and how acute stress and pain pathways interface in the brain are poorly understood. Here, we describe how the dorsal lateral septum (dLS), a forebrain limbic nucleus, facilitates SIA through its downstream targets in the lateral hypothalamic area (LHA) of mice. Taking advantage of transsynaptic viral-genetic, optogenetic, and chemogenetic techniques, we show that the dLS→LHA circuitry is sufficient to drive analgesia and is required for SIA. Furthermore, our results reveal that the dLS→LHA pathway is opioid-dependent and modulates pain through the pro-nociceptive neurons in the rostral ventromedial medulla (RVM). Remarkably, we found that the inhibitory dLS neurons are recruited specifically when the mice struggle to escape under restraint and, in turn, inhibit excitatory LHA neurons. As a result, the RVM neurons downstream of LHA are disengaged, thus suppressing nociception. Together, we delineate a poly-synaptic pathway that can transform escape behavior in mice under restraint to acute stress into analgesia. [ABSTRACT FROM AUTHOR]
- Published
- 2025
- Full Text
- View/download PDF
24. Polyploidy and environmental stress response: a comparative study of fern gametophytes.
- Author
-
Blake‐Mahmud, Jennifer, Sessa, Emily B., Visger, Clayton J., and Watkins, James E.
- Subjects
- *
POLYPLOIDY , *PHYSIOLOGICAL stress , *PLOIDY , *GAMETOPHYTES , *CLIMATE change , *DROUGHT management - Abstract
Summary: Climate change is rapidly altering natural habitats and generating complex patterns of environmental stress. Ferns are major components of many forest understories and, given their independent gametophyte generation, may experience unique pressures in emerging temperature and drought regimes. Polyploidy is widespread in ferns and may provide a selective advantage in these rapidly changing environments. This work aimed to understand whether the gametophytes of allopolyploid ferns respond differently to climate‐related physiological stress than their diploid parents.The experimental approach involved a multifactorial design with 27 treatment combinations including exposure to multiple levels of drought and temperature over three treatment durations, with recovery measured at multiple timepoints. We measured Chl fluorescence from over 2000 gametophytes to evaluate stress avoidance and tolerance in diploid and polyploid species.Polyploids generally showed a greater ability to avoid and/or tolerate a range of stress conditions compared with their diploid counterparts, suggesting that polyploidy may confer enhanced flexibility and resilience under climate stress.Overall, these results suggest that polyploidy may provide some resilience to climate change in mixed ploidy populations. However, all species remain susceptible to the impacts of extreme drought and heat stress. See also the Commentary on this article by Kessler & Aros‐Mualin, 245: 440–442. [ABSTRACT FROM AUTHOR]
- Published
- 2025
- Full Text
- View/download PDF
25. The effect of physical activity on markers of oxidative and antioxidant stress in cancer patients: a systematic review and meta-analysis.
- Author
-
Guedes, Laerte Jônatas Leray, Tavares, Victória Brioso, Carneiro, Saul Rassy, and Neves, Laura Maria Tomazi
- Subjects
- *
CLINICAL trials , *PHYSIOLOGICAL stress , *PUBLIC health , *OXIDATIVE stress , *RANDOMIZED controlled trials - Abstract
Background: Prescribing physical exercise as part of the clinical treatment of cancer patients has become an important strategy in the therapeutic arsenal available in the main health centers specialized in neoplastic diseases, but there is still uncertainty regarding the role of regular physical activity in modifying oxidative stress markers and antioxidants, as high levels of oxidative stress can lead to the development of carcinogens. Therefore, we assessed the effect of physical activity versus absence of physical activity on markers of oxidative stress and antioxidants in cancer patients. Methods: We looked for randomized controlled trials that included adult with any type of cancer performing some physical activity and compared them to a control group of cancer patients with no physical activity. The outcomes of interest collected were markers of oxidative stress and antioxidants. Six databases were used for the search (EMBASE, The Cochrane Library (CENTRAL), US National Library of Medicine (PubMed), Physiotherapy Evidence Database (PEDro), Cumulative Index of Nursing and Allied Health (CINAHL) and SPORTDiscus via EBSCO) until January 31st, 2024. Results: In the end, 7 randomized controlled clinical trials were included, totaling 573 participants. It was possible to conduct a meta-analysis with demonstrated that physical activity potentially increases the antioxidant marker Trolox, Taoc, Gpx, (SMD = 1.23, CI: 0.13 to 2.34). However, these findings were classified as having very low to moderate GRADE evidence. Conclusion: Cancer patients who participated in physical activity programs may have exhibited an increased concentration of antioxidants. Although the overall quality of the evidence in the studies was very low, these findings represent an important field of research that should be guided by studies with more participants and homogeneous methods of analysis of oxidant stress and antioxidant markers. Trial registration: PROSPERO CRD42021257815. [ABSTRACT FROM AUTHOR]
- Published
- 2025
- Full Text
- View/download PDF
26. Impact of climate change induced heat stress on the people working in the coastal cities of India.
- Author
-
Kumar, T. V. Lakshmi, Bharath, J., Filho, Walter Leal, Barbosa, Humberto, and Rao, K. Koteswara
- Subjects
WORK environment ,DATA assimilation ,CITIES & towns ,JOB performance ,PHYSIOLOGICAL stress - Abstract
Indian coastal cities are more vulnerable to heat stress in the context of climate change, with associated physiological stress in the working environment. The increase in heat stress obtained from the Steadman Heat Stress Index (SHSI) and its associated decline in work performance (DWP) are reported in this study using: (a) the reanalysis data sets of the Indian Monsoon Data Assimilation and Analysis (IMDAA) for the period 1981–2020; and (b) the high resolution, bias-corrected simulations of the Indian Institute of Tropical Meteorology (IITM)-Earth System Model (ESM) (source: NEX GDDP) for the period 1981–2014 (historical) and 2015–2050 (Shared Socioeconomic Pathway (SSP) 2.4.5 & 5.8.5) for the coastal cities of India. The SHSI values equivalent to the Wet Bulb Globe Temperature (WBGT), which recommend different rest/work ratios for all the study locations, have been estimated using the model data sets. The results show that the rising heat stress is mainly dependent on the changes in relative humidity in the cities of the west coast, while it is dependent on temperature changes in the cities of the east coast. The cities of Chennai, Nellore, Puducherry and Kochi showed a higher decline in work performance in the SSP2.4.5 scenario, while Mangalore and Thiruvananthapuram were added in the SSP5.8.5 scenario during the decade of 2041–2050. People working without thermal neutralities in Chennai, Nellore, Puducherry, and Kochi were recommended a further 25% increase of rest per hour in the light, medium, heavy, and very heavy work conditions in the future climate scenarios of 2021–2050. [ABSTRACT FROM AUTHOR]
- Published
- 2025
- Full Text
- View/download PDF
27. Cumulative Social Disadvantage and Medicinal Cannabis Use Among Younger Adults in Rural Communities: A Mixed Methods Approach.
- Author
-
Lipperman-Kreda, Sharon, Sanders, Emile, Peach, Julie, Brantley, Shelly, Hunt, Geoffrey, and Antin, Tamar M.J
- Subjects
- *
SOCIOECONOMIC disparities in health , *MEDICAL marijuana , *HEALTH services accessibility , *HEALTH equity , *PHYSIOLOGICAL stress - Abstract
This mixed-methods study investigated the role of medicinal cannabis use among younger adults who live in rural communities and experience high levels of cumulative social disadvantage (CSD). Results are based on cross-sectional surveys and online interviews with 153 younger adults (18–35-years old) in rural California. We assessed participants’ levels of CSD (high, medium, and low) and examined associations with perceived general physical and mental health and with medicinal use of cannabis (MUC). Qualitative analyses were then conducted to better understand the roles of cannabis use in the lives of study participants with high versus low CSD. High CSD was associated with perceived poorer physical and mental health and with MUC, but not past month general cannabis use. Qualitative findings emphasized the significant role of MUC for rural young people with high CSD to reduce stress and manage physical and mental health. Findings suggest the need to address CSD inequities in rural communities, such as increasing access to health care, to reduce health inequities and the reliance on cannabis use for managing mental and physical health. [ABSTRACT FROM AUTHOR]
- Published
- 2025
- Full Text
- View/download PDF
28. The elevated open platform stress suppresses excitatory synaptic transmission in the layer V anterior cingulate cortex.
- Author
-
Kawabata, Ryo, Fujita, Ayumi, Oke, Yoshihiko, Yao, Ikuko, and Koga, Kohei
- Subjects
- *
ACTION potentials , *ELECTRIC stimulation , *CINGULATE cortex , *PHYSIOLOGICAL stress , *NEUROPLASTICITY - Abstract
• The EOP exposure altered the kinetics of AMPA/GluK receptors in layer V of the ACC. • The EOP exposed mice inhibited evoked excitatory synaptic transmission in the ACC. • The EOP exposure produced short-term depression on thalamo-ACC projections. There are various forms of stress including; physical, psychological and social stress. Exposure to physical stress can lead to physical sensations (e.g. hyperalgesia) and negative emotions including anxiety and depression in animals and humans. Recently, our studies in mice have shown that acute physical stress induced by the elevated open platform (EOP) can provoke long-lasting mechanical hypersensitivity. This effect appears to be related to activity in the anterior cingulate cortex (ACC) at the synaptic level. Indeed, EOP exposure induces synaptic plasticity in layer II/III pyramidal neurons from the ACC. However, it is still unclear whether or not EOP exposure alters intrinsic properties and synaptic transmission in layer V pyramidal neurons. This is essential because these neurons are known to be a primary output to subcortical structures which may ultimately impact the behavioral stress response. Here, we studied both intrinsic properties and excitatory/inhibitory synaptic transmission by using whole-cell patch-clamp method in brain slice preparations. The EOP exposure did not change intrinsic properties including resting membrane potentials and action potentials. In contrast, EOP exposure suppressed the frequency of miniature and spontaneous excitatory synaptic transmission with an alteration of kinetics of AMPA/GluK receptors. EOP exposure also reduced evoked synaptic transmission induced by electrical stimulation. Furthermore, we investigated projection-selective responses of the mediodorsal thalamus to the layer V ACC neurons. EOP exposure produced short-term depression in excitatory synaptic transmission on thalamo-ACC projections. These results suggest that the EOP stress provokes abnormal excitatory synaptic transmission in layer V pyramidal neurons of the ACC. [ABSTRACT FROM AUTHOR]
- Published
- 2025
- Full Text
- View/download PDF
29. Nonreceptor tyrosine kinase ABL1 regulates lysosomal acidification by phosphorylating the ATP6V1B2 subunit of the vacuolar-type H+-ATPase.
- Author
-
Song, Caiwei, Dong, Qincai, Yao, Yi, Cui, Yan, Zhang, Chunmei, Lin, Lijun, Zhu, Lin, Hu, Yong, Liu, Hainan, Jin, Yanwen, Li, Ping, Liu, Xuan, and Cao, Cheng
- Subjects
- *
PROTON pumps (Biology) , *CONDITIONED response , *PHYSIOLOGICAL stress , *ACIDIFICATION , *AUTOPHAGY - Abstract
The vacuolar-type H+-ATPase (V-ATPase) is a proton pump responsible for controlling the intracellular and extracellular pH of cells. Its activity and assembly are tightly controlled by multiple pathways, of which phosphorylation-mediated regulation is poorly understood. In this report, we show that in response to starvation stimuli, the nonreceptor tyrosine kinase ABL1 directly interacts with ATP6V1B2, a subunit of the V1 domain of the V-ATPase, and phosphorylates ATP6V1B2 at Y68. Y68 phosphorylation in ATP6V1B2 facilitates the recruitment of the ATP6V1D subunit into the V1 subcomplex of V-ATPase, therefore potentiating the assembly of the V1 subcomplex with the membrane-embedded V0 subcomplex to form the integrated functional V-ATPase. ABL1 inhibition or depletion impairs V-ATPase assembly and lysosomal acidification, resulting in an increased lysosomal pH, a decreased lysosomal hydrolase activity, and consequently, the suppressed degradation of lumenal cargo during macroautophagy/autophagy. Consistently, the efficient removal of damaged mitochondrial residues during mitophagy is also impeded by ABL1 deficiency. Our findings suggest that ABL1 is a crucial autophagy regulator that maintains the adequate lysosomal acidification required for both physiological conditions and stress responses.
Abbreviation : ANOVA: analysis of variance; Baf A1: bafilomycin A1; CCCP: carbonyl cyanide 3-chlorophenylhydrazone; CRK: CRK proto-oncogene, adaptor protein; CTSD: cathepsin D; DMSO: dimethylsulfoxide; EBSS: Earle’s balanced salt solution; FITC: fluorescein isothiocyanate; GFP: green fluorescent protein; GST: glutathione S-transferase; LAMP2: lysosomal associated membrane protein 2; MAP1LC3/LC3: microtubule associated protein 1 light chain 3; MTORC1: mechanistic target of rapamycin kinase complex 1; PD: Parkinson disease; PLA: proximity ligation assay; RFP: red fluorescent protein; WT: wild-type. [ABSTRACT FROM AUTHOR]- Published
- 2025
- Full Text
- View/download PDF
30. The Relationship between the Depression and Anxiety Stress Survey Questionnaire, Salivary Cortisol and Heart Rate Variability.
- Author
-
Sangtarash, Fateme, Choobsaz, Haniyeh, Zarrin, Milad, Salari, Sousan, Manshadi, Ehsan Mokari, Esmaeili, Ali Akbar, Mozaffari, Sayyed Hossein, and Hatef, Boshra
- Subjects
- *
HEART beat , *PHYSIOLOGICAL stress , *GENDER differences (Psychology) , *NONLINEAR analysis , *HYDROCORTISONE - Abstract
Introduction: Cortisol and heart rate variability (HRV) represent the activity of physiological stress axes. The depression and anxiety stress survey (DASS-42) is widely used to assess stress. This study examines the correlations between the DASS-42 questionnaire and stress markers, salivary cortisol levels and HRV. Materials and Methods: A total of 195 healthy volunteers (145 males and 50 females) participated in this study. At first, the DASS-42 survey form was completed. The salivary cortisol samples were collected, and the electrocardiograms were recorded. Differences in cortisol levels between baseline and post-trier social stress tests were recorded as changes in cortisol after stress (CCAS). Measurements were made to establish whether the overall DASS and its subscales (stress, anxiety and depression) were correlated with baseline cortisol, CCAS, and HRV indices. Results: The anxiety-DASS subscale score correlated negatively with the CCAS score in women (r=-0.429, P=0.002). The DASS score was significantly correlated with heart rate (r=0.25, P=0.007) and SD2 of the Poincare plot (r=-0.272, P=0.004) in men. In contrast, women showed significant correlations between total DASS scores with very low-frequency power (r=-0.40, P=0.005) and detrended fluctuation analysis (r=-0.30, P=0.034). The anxiety-DASS subscale correlated with HRV in both genders. Conclusion: The anxiety-DASS subscale represents the sympathetic-adrenal medulla (SAM) activity. Clinicians can estimate the activity of this stress axis by using the anxiety subscale of the DASS questionnaire. Meanwhile, gender differences should be noted when assessing stress. [ABSTRACT FROM AUTHOR]
- Published
- 2025
- Full Text
- View/download PDF
31. Effects of Serendipita indica on the Morphological and Physiological Characteristics of Agrostis stolonifera L. Under Drought Stress.
- Author
-
Lin, Chuhong, Hu, Wenxu, Qin, Xin, Fei, Yongjun, and Hu, Die
- Subjects
- *
PHOTOSYNTHETIC pigments , *PHOTOSYNTHETIC rates , *PHYSIOLOGICAL stress , *PLANT growth , *AGROSTIS - Abstract
This study investigates the effect of Serendipita indica inoculation on the growth, structural characteristics of leaf epidermis, photosynthetic parameters, and antioxidant and osmoregulation capacities of Agrostis stolonifera L. under different drought stresses (normal moisture management: at 70–75% of the field capacity, low drought: at 55–60% field capacity, moderate drought: at 40–45% of the field capacity, and severe drought: at 25–30% of the field capacity). The results showed that inoculation with S. indica significantly enhanced the growth potential of A. stolonifera compared to uninoculated controls, and then under drought stress conditions, inoculation with S. indica significantly alleviated the inhibition of the growth and development of A. stolonifera, especially under mild and moderate drought stresses. These improvements were evident in both aboveground and underground parts, leaf relative water content, total root length, and root surface area after 25 days of drought treatments. Inoculated plants also exhibited higher levels of photosynthetic pigments, net photosynthetic rate (Pn), stomatal conductance (Gs), and transpiration rate (Tr) under drought conditions. Additionally, S. indica inoculation significantly increased the activities of catalase (CAT), peroxidase (POD), and ascorbate peroxidase (APX), as well as the soluble sugar, soluble protein, and proline levels under drought-stressed and non-stressed conditions. In addition, the increases in the malondialdehyde (MDA) content and relative conductivity (RC) of leaves were significantly lower in the inoculated group compared to the control group. In conclusion, the symbiosis with S. indica promotes the growth of A. stolonifera under drought stress, likely by enhancing photosynthesis, osmoregulatory substances, and antioxidant enzyme activities. [ABSTRACT FROM AUTHOR]
- Published
- 2025
- Full Text
- View/download PDF
32. Relationship Between Sedentary Lifestyle, Physical Activity and Stress in University Students and Their Life Habits: A Scoping Review with PRISMA Checklist (PRISMA-ScR).
- Author
-
Guerriero, Mariasole Antonietta, Dipace, Anna, Monda, Antonietta, De Maria, Antonella, Polito, Rita, Messina, Giovanni, Monda, Marcellino, di Padova, Marilena, Basta, Angelo, Ruberto, Maria, Capasso, Emanuele, Moscatelli, Fiorenzo, and Limone, Pierpaolo
- Subjects
- *
PHYSIOLOGICAL stress , *PSYCHOLOGICAL stress , *OVERPRESSURE (Education) , *MENTAL health , *AEROBIC exercises - Abstract
The global prevalence of sedentary lifestyles and the associated health risks, such as cardiovascular, metabolic and mental issues, is an epidemic worldwide problem, particularly in the university population. Background/Objectives: University students are particularly vulnerable because of academic pressure and lifestyle changes. Despite the well-known benefits of physical activity in reducing mental stress and improving physical and mental well-being, the literature lacks effective interventions and standardized protocols for this population. This study aims to investigate the state of the art in literature regarding the correlation between the use of physical activity as a means of prevention and intervention and the effects on university students' stress and mental well-being. Methods: A scoping review was conducted using the PRISMA protocol for scoping reviews, targeting university population with specific terms. Results: The review analyzed 61 articles and identified a consistent positive correlation between physical activity and stress reduction. Interventions included yoga, tai chi, aerobic exercise and moderate- or high-intensity exercise. A lack of standardized protocols were also evident. Conclusions: Physical activity is an effective means for managing stress and improving mental well-being among university students. An integrated approach combining different forms of exercise and strategies to regulate emotions could provide very effective effects on the mental well-being of students. Universities should propose physical activity programs in several forms to enable students to choose the most appropriate one and keep them active. [ABSTRACT FROM AUTHOR]
- Published
- 2025
- Full Text
- View/download PDF
33. Telomere Length Differences Indicate Climate Change‐Induced Stress and Population Decline in a Migratory Bird.
- Author
-
Rodriguez, Marina D., Bay, Rachael A., and Ruegg, Kristen C.
- Subjects
- *
BIRD declines , *PHYSIOLOGICAL stress , *MIGRATORY birds , *CLIMATE change , *DEMOGRAPHIC change , *TELOMERES - Abstract
ABSTRACT Genomic projections of (mal)adaptation under future climate change, known as genomic offset, faces limited application due to challenges in validating model predictions. Individuals inhabiting regions with high genomic offset are expected to experience increased levels of physiological stress as a result of climate change, but documenting such stress can be challenging in systems where experimental manipulations are not possible. One increasingly common method for documenting physiological costs associated with stress in individuals is to measure the relative length of telomeres—the repetitive regions on the caps of chromosomes that are known to shorten at faster rates in more adverse conditions. Here we combine models of genomic offsets with measures of telomere shortening in a migratory bird, the yellow warbler (Setophaga petechia), and find a strong correlation between genomic offset, telomere length and population decline. While further research is needed to fully understand these links, our results support the idea that birds in regions where climate change is happening faster are experiencing more stress and that such negative effects may help explain the observed population declines. [ABSTRACT FROM AUTHOR]
- Published
- 2025
- Full Text
- View/download PDF
34. Molecular changes and physiological responses involved in migratory bird fuel management and stopover decisions.
- Author
-
Bounas, Anastasios, Talioura, Artemis, Komini, Chrysoula, Toli, Elisavet‐Aspasia, Sotiropoulos, Konstantinos, and Barboutis, Christos
- Subjects
- *
BIRD migration , *MIGRATORY birds , *MUSCLE mass , *PHYSIOLOGICAL adaptation , *PHYSIOLOGICAL stress - Abstract
Migratory birds undertake long journeys across continents to reach breeding habitats with abundant resources. These migrations are essential for their survival and are shaped by a complex interplay of physiological adaptations, behavioral cues, and gene expression patterns. Central to migration are stopovers, critical resting points where birds replenish energy stores before continuing their journey. In this study, we integrate physiological measurements, behavioral observations, and molecular data from temporarily caged migrating Garden Warblers (Sylvia borin) to gain insights into their stopover strategies and physiological adaptations after crossing the extended ecological barrier formed by the Sahara Desert and the Mediterranean Sea. Depleted individuals, marked by low body mass and flight muscle mass, showcased remarkable plasticity in recovering and rapidly rebuilding energy stores within a short 5‐day stopover. Flight muscle mass increased during this period, highlighting a dynamic trade‐off between muscle rebuilding and refuelling. Notably, birds prioritizing muscle rebuilding exhibited a trade‐off with the downregulation of genes related to lipid transport and metabolism and at the same time showing evidence of skeletal muscle angiogenesis. Early arrivals were more motivated to depart and exhibited higher levels of physiological stress. Our study highlights the importance of understanding the adaptive responses of birds to changing environmental conditions along their migration routes. Research highlights: Rapid energy store replenishment in depleted Garden Warblers during stopoversDynamic trade‐off between muscle rebuilding and refuellingEarly arrivals exhibit higher motivation and stress response, influencing migration decision‐making [ABSTRACT FROM AUTHOR]
- Published
- 2025
- Full Text
- View/download PDF
35. The physiological stress response of juvenile nurse sharks (Ginglymostoma cirratum) to catch-and-release recreational angling.
- Author
-
Giesy, Katherine C., Jerome, Jacob, Wester, Julia, D'Alessandro, Evan, McDonald, M. Danielle, and Macdonald, Catherine
- Subjects
- *
SCIENTIFIC method , *PHYSIOLOGICAL stress , *FISHERIES , *SHARKS , *BLOOD sampling , *BLOOD lactate - Abstract
Nurse sharks (Ginglymostoma cirratum), especially juveniles, are often encountered by near-shore and shore-based recreational anglers and are suggested to exhibit minimal behavioral and physiological responses to capture, largely based on studies of adults using commercial or scientific fishing methods. To quantify the sub-lethal effects of recreational angling on juvenile nurse sharks, 27 individuals (across 31 angling events) were caught using hook-and-line fishing methods. Over a 30-min period, 4 blood samples were taken with variable time intervals between sampling (i.e., randomized ordering of an interval of 5, 10, and 15 min between each sampling event). Lactate increased by 611% (6.7 ± 2.17 mmol/L) on average over the 30-min fight, and significant relationships were identified between lactate and blood draw number, fight time, and temperature, with large effect sizes. Significant relationships were also detected between blood draw number, glucose, and hematocrit, while osmolality was only affected by fishing site. These results suggest juvenile nurse sharks may exhibit a greater physiological stress response when exposed to recreational angling than adults captured with other fishing methods. [ABSTRACT FROM AUTHOR]
- Published
- 2025
- Full Text
- View/download PDF
36. 外源喷施 2,4-表芸苔素内酯对盛花期 渍害胁迫下芝麻耐渍性的影响.
- Author
-
丁 芳, 吕树立, and 田壮博
- Subjects
- *
WATERLOGGING (Soils) , *ROOT growth , *POTTED plants , *PHYSIOLOGICAL stress , *PLANT regulators , *SESAME - Abstract
In order to study the effects of waterlogging stress on growth and physiological characteristics of sesame at flowering stage and the regulation effect of 24-epibrassinolide on waterlogging stress of sesame, in this study, using a waterlogging tolerant sesame variety Shangzhi 189 and a waterlogging sensitive sesame variety Zhengzhi 13 as experimental materials, taking the potted plant method, the treatment of foliar spraying of 24-epibrassinolide (0.01, 0.03, and 0.05 mg/kg), followed by continuous flooding treatment for 36 hours, and 5 days of normal temperature recovery after waterlogging stress was conducted. The indicators including root growth, antioxidant system, and osmotic regulators of sesame plants were measured. The results showed that under waterlogging stress, the photosynthetic efficiency, antioxidant enzyme activity, and osmotic regulator content of the two sesame varieties significantly decreased, especially the waterlogging sensitive variety Zhengzhi 13. Compared with the treatment without spraying (CK2), when the mass concentration of brassinolide was 0.03 mg/kg, the plant height, stem diameter, and lateral root number of the waterlogging tolerant variety Shangzhi 189 increased by 9.36%, 8.66%, 12.82%, the soluble protein content significantly increased by 31.01%. When the massconcentration of brassinolide was 0.05mg/kg, the plant height of waterlogging sensitive sesame variety Zhengzhi 13 increased by 9.96%, the lateral root number and dry weight increased by 14.92% and 14.28%, respectively, and the activities of SOD and POD increased by 13.01%, 13.88%. In conclusion, spraying brassinolide could significantly improve the waterlogging tolerance of sesame under waterlogging stress at the flowering stage, promote lateral root growth of sesame, increase protective enzyme activity and photosynthetic capacity, and other indicators, which was beneficial for the growth recovery of sesame plants after waterlogging stress. Among them, the best effect of recovery growth of waterlogging tolerant variety Shangzhi 189 was induced by spraying 0.03 mg/kg, and the best effect of recovery growth of waterlogging sensitive variety Zhengzhi 13 was induced by spraying 0.05 mg/kg. [ABSTRACT FROM AUTHOR]
- Published
- 2025
- Full Text
- View/download PDF
37. cSTAR analysis identifies endothelial cell cycle as a key regulator of flow-dependent artery remodeling.
- Author
-
Hanqiang Deng, Rukhlenko, Oleksii S., Joshi, Divyesh, Xiaoyue Hu, Junk, Philipp, Tuliakova, Anna, Kholodenko, Boris N., and Schwartz, Martin A.
- Subjects
- *
VASCULAR endothelial cells , *SHEARING force , *DISEASE susceptibility , *PHYSIOLOGICAL stress , *CELL cycle - Abstract
Fluid shear stress (FSS) from blood flow sensed by vascular endothelial cells (ECs) determines vessel behavior, but regulatory mechanisms are only partially understood. We used cell state transition assessment and regulation (cSTAR), a powerful computational method, to elucidate EC transcriptomic states under low shear stress (LSS), physiological shear stress (PSS), high shear stress (HSS), and oscillatory shear stress (OSS) that induce vessel inward remodeling, stabilization, outward remodeling, or disease susceptibility, respectively. Combined with a publicly available database on EC transcriptomic responses to drug treatments, this approach inferred a regulatory network controlling EC states and made several notable predictions. Particularly, inhibiting cell cycle-dependent kinase (CDK) 2 was predicted to initiate inward remodeling and promote atherogenesis. In vitro, PSS activated CDK2 and induced late G1 cell cycle arrest. In mice, EC deletion of CDK2 triggered inward artery remodeling, pulmonary and systemic hypertension, and accelerated atherosclerosis. These results validate use of cSTAR and identify key determinants of normal and pathological artery remodeling. [ABSTRACT FROM AUTHOR]
- Published
- 2025
- Full Text
- View/download PDF
38. Post-Traumatic Growth and Self-Compassion Level in Hemodialysis Patients.
- Author
-
Arpacı, Rabia and Tanriverdi, Derya
- Subjects
- *
HEMODIALYSIS patients , *STATISTICAL correlation , *POSITIVE psychology , *QUESTIONNAIRES , *SEX distribution , *POSTTRAUMATIC growth , *SELF-compassion , *BEHAVIOR , *PSYCHOLOGICAL adaptation , *ECONOMIC status , *PSYCHOLOGICAL stress , *RESEARCH , *PHYSIOLOGICAL stress , *PSYCHOSOCIAL factors , *PATIENTS' attitudes , *EDUCATIONAL attainment - Abstract
The hemodialysis process can lead to positive psychological changes in patients as they cope with physical and psychosocial stress factors. Understanding post-traumatic growth and factors that may be associated is essential to increasing the likelihood of achieving positive changes in hemodialysis patients. The aim of this study was to investigate the correlation between post-traumatic growth and self-compassion levels in hemodialysis patients. The study was conducted with 83 hemodialysis patients. Data were collected using "Demographic and Clinical Characteristics Form," "Post-Traumatic Growth Inventory," "Self-Compassion Scale." Post-traumatic growth levels of hemodialysis patients were found to be moderate. The self-compassion levels of hemodialysis patients were found to be high. A statistically significant difference was found between gender, educational status, economic status, and self-compassion mean scores (p <.05). However, no statistically significant correlation was found between post-traumatic growth and self-compassion (p >.05). Further research is needed to explore the potential correlation between self-compassion and post-traumatic growth in hemodialysis patients. [ABSTRACT FROM AUTHOR]
- Published
- 2025
- Full Text
- View/download PDF
39. Association between allostatic load and cardiac structural and functional abnormalities in young adults with serious mental disorders.
- Author
-
Chen, Pao-Huan, Hsiao, Cheng-Yi, Wang, Jiunn-Kae, Ku, Hsiao-Lun, Chung, Kuo-Hsuan, and Tsai, Shang-Ying
- Subjects
- *
HEART anatomy , *HEART physiology , *LEFT heart ventricle , *PHYSIOLOGICAL adaptation , *VENTRICULAR ejection fraction , *MITRAL valve , *MENTAL illness , *VENTRICULAR remodeling , *BLOOD cell count , *OXIDATIVE stress , *LEFT ventricular hypertrophy , *PHYSIOLOGICAL stress , *INFLAMMATION , *ECHOCARDIOGRAPHY , *BIOMARKERS , *GLOBAL longitudinal strain - Abstract
Allostatic load refers to the pathophysiological consequences of uncompensated adaptation to chronic stress. Few studies have investigated the effect of allostatic load on cardiac health in patients with serious mental disorders (SMDs), a population at high risk of cardiac mortality. Herein we evaluated associations between allostatic load and cardiac structure and function in young adults with SMDs. A total of 106 participants aged younger than 45 years underwent echocardiographic study, blood biochemistry examination, and blood cell count analysis. Echocardiographic imaging was conducted in accordance with recommendations of the American Society of Echocardiography and European Association of Cardiovascular Imaging. Allostatic load index was calculated using 15 measures representing cardiovascular, metabolic, and inflammatory or oxidative stress markers. The SMD group exhibited a significantly higher allostatic load index than did control (Cohen's d = 0.59). Additionally, they exhibited a greater left ventricular relative wall thickness (LVRWT, Cohen's d = 0.39) and a less favorable mitral valve E/A ratio (Cohen's d = 0.31), left ventricular ejection fraction (Cohen's d = 0.51), and global longitudinal strain (Cohen's d = 0.71). After demographic and clinical characteristics were adjusted for, multiple linear regression revealed that allostatic load index was positively associated with LVRWT (β = 0.255) and negatively associated with mitral valve E/A ratio (β = −0.247) in the SMD group. This is the first study to suggest that allostatic load may play a critical role in accelerated adverse cardiac remodeling among young patients with SMDs. Future studies should elucidate the underlying mechanisms. • Compared with healthy individuals, patients with SMDs have a greater allostatic load. • Compared with healthy individuals, patients with SMDs have less favorable cardiac structure and function. • Allostatic load index is significantly positively associated with LVRWT in patients with SMDs. • Allostatic load index is negatively associated with the mitral valve E/A ratio. • Allostatic load may adversely affect cardiac health in patients with SMDs. [ABSTRACT FROM AUTHOR]
- Published
- 2025
- Full Text
- View/download PDF
40. Self-reported aggression is related to oxidative stress in men and women.
- Author
-
Kowal, Marta, Żelaźniewicz, Agnieszka, Nowak-Kornicka, Judyta, Groyecka-Bernard, Agata, Pawłowski, Bogusław, and Sorokowski, Piotr
- Subjects
- *
ANIMAL aggression , *PHYSIOLOGICAL stress , *OXIDATIVE stress , *DNA , *COGNITIVE development - Abstract
Aggression is an important element of social behavior. Increased aggression has been observed in many mental disorders, posing a serious public health concern. However, the proximal biological mechanisms underlying an individual's proneness to aggressive behavior remain poorly understood. Studies in both non-human animals and humans with aggressive disorders have shown that aggression is positively related to oxidative stress levels. Whether this relationship exists in healthy individuals has not yet been verified. We investigated the relationship between the serum level of 8-hydroxy-20-deoxyguanosine (8-OH-dG), a marker of oxidative damage to deoxyribonucleic acid, and self-reported aggression in 213 healthy men and women (M age = 27.41, SD = 2.70). We controlled for serum free testosterone, cortisol, and subclinical inflammatory state (evaluated with high-sensitivity C-reactive protein level). We found that 8-OH-dG level was positively related to physical aggression. Our findings provide preliminary evidence that healthy individuals with higher levels of oxidative stress are more physically aggressive. We hypothesize that evaluating markers of oxidative stress levels may be useful for screening healthy populations to identify individuals who may be particularly susceptible to the development of mental issues related to aggression. Plain language summary: This study focuses on the relationship between oxidative stress and physical aggression in healthy individuals. Oxidative stress, a process causing damage to DNA, has been linked to increased aggression in certain species, such as birds, fish, and mice. However, its role in healthy human individuals has not been thoroughly explored. We examined 213 men and women and found that higher levels of oxidative stress were associated with increased physical aggression. This suggests that assessing oxidative stress markers could be a valuable tool for identifying individuals who might be at a higher risk for mental health issues related to aggression. [ABSTRACT FROM AUTHOR]
- Published
- 2025
- Full Text
- View/download PDF
41. A pilot study of trauma-sensitive yoga and Breathe2Relax among service members in an intensive outpatient program.
- Author
-
Skopp, Nancy A., Bradshaw, David, Smolenski, Derek J., Wilson, Naomi, Williams, Tammy, Bellanti, Dawn, and Hoyt, Tim
- Subjects
- *
TREATMENT of emotional trauma , *RISK assessment , *MOBILE apps , *OUTPATIENT medical care , *EVALUATION of human services programs , *PILOT projects , *PSYCHOLOGY of military personnel , *DESCRIPTIVE statistics , *YOGA , *BREATHING exercises , *EMOTIONAL trauma , *HEART beat , *MIND & body therapies , *ODDS ratio , *PHYSIOLOGICAL stress , *COMPARATIVE studies , *CONFIDENCE intervals , *DISEASE risk factors - Abstract
Emerging research indicates that yoga is a promising adjunct to psychological trauma treatment. The current pilot study examined the associations between psychophysiological stress, diaphragmatic breathing (DB), and a trauma-sensitive yoga (TSY) regimen developed specifically for trauma-exposed service members in alignment with recent calls for precision in reporting therapeutic yoga protocols. Participants were 31 service members enrolled in a trauma-focused intensive outpatient program (IOP). Service members participated in a brief diaphragmatic breathing (DB) session using the Breathe2Relax (B2R) app followed by the TSY session. Heart rate (HR) and perceived stress were measured at baseline and after both the DB practice and the TSY session. We assessed Yoga and DB expectancies at baseline and post TSY. Participants also rated the acceptability and usability of the B2R app. Results of linear mixed effects regression models showed decreases in HR and perceived stress, compared to baseline, following DB (HR, b = −8.68, CI 95% = −13.34, −4.02; perceived stress, b = −1.77, CI 95% = −2.35, −1.18) and TSY (HR, b = −12.44, CI 95% = −17.15, −7.73; perceived stress b = −3.69, CI 95% = −4.29, −3.08). Higher levels of expectancies, compared to lower levels, related to stronger decreases in HR and perceived stress, particularly after TSY. Overall, participants rated the B2R usability as high; virtually all participants reported that "most would learn to use the app quickly," and 76.6% reported that they would use it frequently. [ABSTRACT FROM AUTHOR]
- Published
- 2025
- Full Text
- View/download PDF
42. Overhead and Wheelchair Sport-Related Injuries in Para Athletes: Interplay Between Disability and Sport-Specific Factors.
- Author
-
Dupuy, Alexis, Goosey-Tolfrey, Vicky L., Webborn, Nick, Rance, Mélanie, and Ratel, Sébastien
- Subjects
- *
LEG physiology , *SPORTS injuries risk factors , *SPORTS injury prevention , *TORSO physiology , *PREVENTION of overuse injuries , *RISK assessment , *PUBLIC health surveillance , *BIOMECHANICS , *WOUNDS & injuries , *WEIGHT-bearing (Orthopedics) , *WHEELCHAIR sports , *HEALTH status indicators , *NATURE , *SPORTS for people with disabilities , *PRODUCT design , *SPINAL cord injuries , *PHYSICAL training & conditioning , *AGE distribution , *ORTHOPEDIC apparatus , *SPORTS participation , *ASSISTIVE technology , *SPASTICITY , *ATHLETES with disabilities , *PHYSICAL fitness , *EPIDEMIOLOGY , *PHYSIOLOGICAL stress , *ATHLETIC ability , *PSYCHOSOCIAL factors , *ACTIVITIES of daily living , *EMPLOYEES' workload , *DISEASE incidence , *RANGE of motion of joints , *MEDICAL equipment design - Abstract
With the increasing opportunities for people with disabilities to engage in competitive Para sports, it becomes imperative to understand the injury consequences that may impact both sports participation and daily life activities. This narrative review aims to examine the intrinsic and extrinsic risk factors inherent in overhead and wheelchair summer Para sports, while also exploring prospective avenues for implementing prevention strategies. By understanding the injury epidemiology in this cohort of Para athletes, this review aims to explore the intricate interplay between the athletes' underlying disability with sport-specific factors, such as how wheelchair use might amplify injury susceptibility. Specifically, we highlight the impact of impairment, daily activity, and workload or discipline-induced overuse on injury occurrence, as well as how surveillance methods can be tailored to this population. In this regard, we propose practical injury surveillance methods that encompass a sensitive injury definition, severity assessment, incidence rate calculation, and the recording of adaptive equipment (e.g., type of wheelchair) and workload monitoring. It is worth noting that studies of prospective injury surveillance systems coupled with workload monitoring within a dedicated Para sport web-based platform are scarce. To establish a comprehensive understanding of Para athlete health, the monitoring framework should incorporate regular athlete follow-ups and facilitate knowledge transfer. [ABSTRACT FROM AUTHOR]
- Published
- 2025
- Full Text
- View/download PDF
43. Evidence for microbially-mediated tradeoffs between growth and defense throughout coral evolution.
- Author
-
Epstein, Hannah E., Brown, Tanya, Akinrinade, Ayọmikun O., McMinds, Ryan, Pollock, F. Joseph, Sonett, Dylan, Smith, Styles, Bourne, David G., Carpenter, Carolina S., Knight, Rob, Willis, Bette L., Medina, Mónica, Lamb, Joleah B., Thurber, Rebecca Vega, and Zaneveld, Jesse R.
- Subjects
CORAL diseases ,SCLERACTINIA ,BIOLOGICAL evolution ,LIFE history theory ,CORAL reefs & islands ,PHYSIOLOGICAL stress - Abstract
Background: Evolutionary tradeoffs between life-history strategies are important in animal evolution. Because microbes can influence multiple aspects of host physiology, including growth rate and susceptibility to disease or stress, changes in animal-microbial symbioses have the potential to mediate life-history tradeoffs. Scleractinian corals provide a biodiverse, data-rich, and ecologically-relevant host system to explore this idea. Results: Using a comparative approach, we tested if coral microbiomes correlate with disease susceptibility across 425 million years of coral evolution by conducting a cross-species coral microbiome survey (the "Global Coral Microbiome Project") and combining the results with long-term global disease prevalence and coral trait data. Interpreting these data in their phylogenetic context, we show that microbial dominance predicts disease susceptibility, and traced this dominance-disease association to a single putatively beneficial symbiont genus, Endozoicomonas. Endozoicomonas relative abundance in coral tissue explained 30% of variation in disease susceptibility and 60% of variation in microbiome dominance across 40 coral genera, while also correlating strongly with high growth rates. Conclusions: These results demonstrate that the evolution of Endozoicomonas symbiosis in corals correlates with both disease prevalence and growth rate, and suggest a mediating role. Exploration of the mechanistic basis for these findings will be important for our understanding of how microbial symbioses influence animal life-history tradeoffs. [ABSTRACT FROM AUTHOR]
- Published
- 2025
- Full Text
- View/download PDF
44. Wellhead Stability During Development Process of Hydrate Reservoir in the Northern South China Sea: Evolution and Mechanism.
- Author
-
Li, Qingchao, Li, Qiang, Wu, Jingjuan, Li, Xianzhong, Li, Hongbin, and Cheng, Yuanfang
- Subjects
EFFECTIVE stress (Soil mechanics) ,GAS hydrates ,ELASTIC modulus ,PHYSIOLOGICAL stress ,CLEAN energy ,INTERNAL friction - Abstract
Natural gas hydrates represent a promising clean energy source with vast reserves. Their efficient development is crucial for ensuring the sustainable advancement of human society. However, wellhead instability occurred in the long-term development, which poses a significant challenge that impacts its commercial development. In the present work, the properties of hydrate-bearing sediments were experimentally investigated. It was found that the elastic modulus, cohesion, and internal friction angle of hydrate-bearing sediments exhibit an increase with the effective stress. As an example, when the effective stress increases from 0 MPa to 25 MPa, the normalized elastic modulus exhibits a rise from 1.00 to 1.36. Conversely, the Poisson's ratio, permeability, and porosity demonstrate a decline in accordance with this trend. As an example, both normalized porosity and permeability decrease to values below 0.40 as the effective stress increases to 25 MPa. Based on the experimental results and previous work, a comprehensive model for describing the effect of both hydrate saturation and effective stress on physical parameters was obtained. Subsequently, a multi-field coupled investigation methodology was developed to evaluate wellhead stability during the long-term development of hydrate-bearing sediments, and the evolution characteristics and mechanisms of wellhead instability were numerically explored. It reveals that development operation using the vertical wellbore decomposes hydrates in the surrounding sediments only within a radius of 19.52 m, which significantly undermines the wellhead stability. Moreover, the wellhead system not only sinks with sediment subsidence but also experiences additional sinking due to the failure of bonding between the wellhead system and sediments. Furthermore, the latter accounts for a significant portion, amounting to approximately 68.15% of the total sinking under the research conditions. This study can provide methodological prerequisites for exploring the impact of various factors on wellhead stability during the long-term hydrate development process. [ABSTRACT FROM AUTHOR]
- Published
- 2025
- Full Text
- View/download PDF
45. GLYCINE betaine and seaweed-based biostimulants improved leaf water status and enhanced photosynthetic activity in sweet cherry trees.
- Author
-
Afonso, Sílvia, Oliveira, Ivo, Guedes, Francisco, Meyer, Anne S., and Gonçalves, Berta
- Subjects
CHERRIES ,BETAINE ,FRUIT development ,CULTIVARS ,PHYSIOLOGICAL stress ,SWEET cherry - Abstract
Sweet cherry is a high-value crop, and strategies to enhance production and sustainability are at the forefront of research linked to this crop. The improvement of plant status is key to achieving optimum yield. Biostimulants, such as glycine betaine (GB) or seaweed-based biostimulants [e.g., Ecklonia maxima (EM)], can represent a sustainable approach to improving plant conditions, even under adverse environmental circumstances. Despite their potential, few studies have focused on the effects of GB or EM exogenous application on sweet cherry tree physiology. To address this lack of research, a study was conducted in a Portuguese sweet cherry commercial orchard, using Lapins and Early Bigi cultivars. Trees were treated with products based on GB and EM at two different concentrations [GB 0.25% (v/v) and GB 0.40% (v/v); EM 0.30% (v/v) and EM 0.15% (v/v)], a combination of the lowest concentrations of both biostimulants (Mix —GB 0.25% and EM 0.15%), and a control group (C) treated with water. Applications were performed over three consecutive years (2019, 2020, and 2021) at three different phenological stages, according to the BBCH scale: 77, 81, and 86 BBCH. Results showed, in general, that the application of biostimulants led to improvements in water status as well as significantly lower values of electrolyte leakage and thiobarbituric acid reactive substances compared to C samples. Additionally, biostimulants reduced pigment loss in the leaves and enhanced their biosynthesis. The Chlorophyll
a /Chlorophyllb ratio, ranging from 2 to 4, indicated a greater capacity for light absorption and lower stress levels in treated leaves. Soluble sugar and starch content decreased during fruit development in both cultivars and years; however, biostimulants increased these contents, with increments of approximately 15% to 30% in leaves treated with EM. Soluble protein content also showed the same pattern for treated leaves. Biostimulants, especially EM, demonstrated a significant positive effect (p ≤ 0.001) on total phenolic content, with increases of approximately 25% to 50% in treated leaves. In conclusion, the application of biostimulants, especially algae-based, significantly improved tree performance by enhancing physiological parameters and stress resilience and could represent a novel approach in fruit production systems. [ABSTRACT FROM AUTHOR]- Published
- 2025
- Full Text
- View/download PDF
46. The Need for New Perspectives on Arousal in Emotion Theory.
- Author
-
Smith, Karen E. and Pollak, Seth D.
- Subjects
PHYSIOLOGICAL stress ,EMOTIONAL state ,STIMULUS intensity ,RESEARCH personnel ,EMOTIONAL experience - Abstract
The article "The Need for New Perspectives on Arousal in Emotion Theory" discusses the ambiguity surrounding the concept of arousal in emotion research. It highlights the historical context and challenges associated with defining and measuring arousal, as well as the need for increased specificity in research. The authors suggest that researchers should provide more rationale and evidence when using arousal as an explanation, and consider alternative mechanisms to better understand emotional experiences. Overall, the article emphasizes the importance of critical reflection and interdisciplinary discussions to advance knowledge in the field of emotion research. [Extracted from the article]
- Published
- 2025
- Full Text
- View/download PDF
47. Quantifying Stress and Relaxation: A New Measure of Heart Rate Variability as a Reliable Biomarker.
- Author
-
Rudics, Emese, Buzás, András, Pálfi, Antónia, Szabó, Zoltán, Nagy, Ádám, Hompoth, Emőke Adrienn, Dombi, József, Bilicki, Vilmos, Szendi, István, and Dér, András
- Subjects
HEART beat ,AUTONOMIC nervous system ,BIOFEEDBACK training ,STROOP effect ,PHYSIOLOGICAL stress - Abstract
Background/Objectives: For the rapid, objective characterization of the physiological stress response, there is currently no generally recognized standard. The stress measurement methods used in practice (e.g., for psychological measures of stress) are often subjective, or in the case of biological markers (e.g., cortisol, amylase), they usually require a blood test. For this reason, the use of heart rate variability (HRV) to characterize stress has recently come to the fore. HRV is the variability in the length of heartbeat intervals, which indicates the ability of the heart to respond to various physiological and environmental stimuli. However, the conventional HRV metrics are not corrected for heart rate dependence; hence, they fail to fully account for the complex physiology of stress and relaxation. In order to remedy this problem, here we introduce a novel HRV parameter, the normalized variability derived from an RMSSD "Master Curve", and we compare it with the conventional metrics. Methods: In Study 1, the relaxation state was induced either by heart rate variability biofeedback training (N = 21) or by habitual relaxation (N = 21), while in Study 2 (N = 9), the Socially Evaluated Cold Pressor Test and the Socially Evaluated Stroop Test were used to induce stress in the subject. For a statistical evaluation of the data, the Kolmogorov–Smirnov test was used to compare the distributions of mean HR, log(RMSSD), log(SDNN), and normalized variability before, during, and after relaxation and stress. Results: The results of this study indicate that while log(RMSSD) and log(SDNN) did not change significantly, the normalized variability did undergo a significant change both in relaxation states and in stress states induced by the Socially Evaluated Cold Pressor Test. Conclusions: Overall, we suggest this novel type of normalized variability ought to be used as a sensitive stress indicator, and in general, for the characterization of the complex processes of the vegetative nervous system. [ABSTRACT FROM AUTHOR]
- Published
- 2025
- Full Text
- View/download PDF
48. Emotion Knowledge Relates to Cortisol for Children Attending Head Start Preschool.
- Author
-
Brown, Eleanor D., King, Sara, Garnett, Mallory L., and Holochwost, Steven J.
- Subjects
MULTIPLE regression analysis ,EMOTIONAL competence ,INSTITUTIONAL racism ,PHYSIOLOGICAL stress ,HYDROCORTISONE - Abstract
Research Findings: The ability to manage emotions is thought to be important for regulating stress at a physiological level, yet no prior published studies have examined young children's emotion understanding or knowledge in relation to the stress hormone cortisol. The present study investigated the statistical relation between emotion knowledge (EK) and cortisol levels for 307 young children ages 3–5 years who attended Head Start preschool, and their primary caregivers. All of the child participants faced economic hardship and 80% were Black, Indigenous, and People of Color (BIPOC) and thereby positioned to experience systemic racism. At the start of the preschool year, EK, or understanding of emotions, was assessed using a well-validated emotion matching task and basal cortisol levels were measured via salivary assay. Results of a multiple linear regression analysis revealed that, after accounting for demographic covariates, greater EK was associated with lower cortisol. Practice or Policy: The finding that EK relates to cortisol levels in early childhood highlights the importance of addressing emotional competence in early intervention programs. Notably, the relationship may be bidirectional and reducing stress levels also may facilitate advancing young children's emotion understanding. Interventions that promote EK and reduce stress levels may advance overall school readiness. [ABSTRACT FROM AUTHOR]
- Published
- 2025
- Full Text
- View/download PDF
49. Stress Monitoring in Pandemic Screening: Insights from GSR Sensor and Machine Learning Analysis.
- Author
-
Georgas, Antonios, Panagiotakopoulou, Anna, Bitsikas, Grigorios, Vlantoni, Katerina, Ferraro, Angelo, and Hristoforou, Evangelos
- Subjects
GALVANIC skin response ,MEDICAL screening ,COVID-19 ,CLASSIFICATION algorithms ,PHYSIOLOGICAL stress - Abstract
This study investigates the impact of patient stress on COVID-19 screening. An attempt was made to measure the level of anxiety of individuals undertaking rapid tests for SARS-CoV-2. To this end, a galvanic skin response (GSR) sensor that was connected to a microcontroller was used to record the individual stress levels. GSR data were collected from 51 individuals at SARS-CoV-2 testing sites. The recorded data were then compared with theoretical estimates to draw insights into stress patterns. Machine learning analysis was applied for the optimization of the sensor results. Classification algorithms allowed the automatic reading of the sensor results and individual identification as "stressed" or "not stressed". The findings confirmed the initial hypothesis that there was a significant increase in stress levels during the rapid test. This observation is critical, as heightened anxiety may influence a patient's willingness to participate in screening procedures, potentially reducing the effectiveness of public health screening strategies. [ABSTRACT FROM AUTHOR]
- Published
- 2025
- Full Text
- View/download PDF
50. Stress, physical activity, and mindfulness practices among youth amidst COVID-19.
- Author
-
El Hajj, A., Noulhiane, M., Andrieu, B., Heutte, Natacha, and Sirost, O.
- Subjects
MENTAL health ,PERCEIVED Stress Scale ,PHYSICAL activity ,ECONOMIC uncertainty ,PHYSIOLOGICAL stress ,MINDFULNESS - Abstract
Introduction: The COVID-19 pandemic has exacerbated stress and anxiety among young people, particularly university students, impacting their mental well-being and daily life. Given the rise in social isolation and economic uncertainty, the adoption of mindfulness practices such as sophrology, meditation, and yoga becomes essential for improving their mental health. This study aims to evaluate the impact of these practices on stress levels and their effect on engagement in physical activities among youths. Method: This study employed a mixed methods design to assess the impact of different wellness and mindfulness practices on stress levels and physical activity (PA) engagement among university students. Quantitative data were gathered electronically from 218 students at the University of Rouen and the university of Paris-Cité through validated questionnaires, including custom tools on sports and mindfulness practices and the Perceived Stress Scale (PSS). The sample consisted mainly of young adults aged 18 to 35, with a majority of 170 female and 48 male participants. Qualitative insights were gathered through semi-structured interviews with three directors of the university's sports and physical activities department (SUAPS), as well as four wellness program instructors. Data analysis involved statistical techniques using Statistical Analysis System (SAS) software for quantitative data, while qualitative data were analyzed thematically using Sphinx software, a tool for textual analysis. Ethical approval for the study was obtained, and confidentiality of all participants was maintained throughout the research. Results and conclusion: The COVID-19 pandemic had significant effects on French university students' PA, mental health, and stress levels. Lockdowns led to a decline in sports practices for many, while others adapted by increasing their engagement in fitness and wellness practices. The majority of participants (64.68%) reported moderate levels of stress. A significant correlation was found between motivations for mental health support and stress management, and higher levels of stress (p = 0.0000 and p = 0.0024, respectively). Regular participation in wellness activities was associated with lower stress (p = 0.0193). The findings reinforce the idea that incorporating wellness practices into educational environments can strengthen students' mental resilience and overall well-being, equipping them with essential tools to effectively cope with future stressors. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
Catalog
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.