Journal of Aging and Physical Activity最新文献

{"title":"Age- and Sex-Based Differences in Gait Pattern Characteristics Among Adults Over 50: A Cross-Sectional Study.","authors":"Mariève Houle, Gabriel Moisan, Andrée-Anne Marchand, Martin Descarreaux","doi":"10.1123/japa.2024-0364","DOIUrl":"10.1123/japa.2024-0364","url":null,"abstract":"<p><strong>Background/objective: </strong>Walking is essential for maintaining functional independence, and understanding gait changes due to aging is crucial, as chronic conditions often overlap with normal aging. The objective of this study was to describe gait characteristics in adults aged 50 and over and to identify differences between age groups and between sexes.</p><p><strong>Methods: </strong>The study included 34 adults aged 50-59, 38 adults aged 60-69, and 28 adults aged 70+ years. Participant characteristics (age, sex, height, weight, and comorbidities) were collected. Participants walked a 30-m round trip at a self-selected pace. Gait was measured using inertial measurement units.</p><p><strong>Results: </strong>Results showed that stride length, stride velocity, push-off ratio, and minimal toe clearance decreased with age (p < .03) and flat-foot ratio increased with age (p < .01), while cadence, walking phases (stance, swing, double support, and loading ratio), and maximal heel clearance were similar across age groups (p > .05). Males had a lower cadence, a longer stride, and a higher maximal heel clearance than females (p < .04). Stride velocity and minimal toe clearance were similar between sexes (p > .05).</p><p><strong>Conclusions: </strong>This study found that stride length and velocity decrease with age, and notable sex differences exist in stride length and maximal heel clearance. These findings underscore the importance of considering both age and sex when assessing walking and functional capacity in older adults. Significance/Implications: Aging impacts gait, and inertial measurement units offer a valuable tool to examine how age and sex affect walking. This is an initial step toward a deeper understanding of gait characteristics in older adults.</p>","PeriodicalId":51073,"journal":{"name":"Journal of Aging and Physical Activity","volume":" ","pages":"424-434"},"PeriodicalIF":1.7,"publicationDate":"2025-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145369201","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Is There Agreement Between Distances Covered in the 6-min Walk Test Regardless of the Test Configuration? A Cross-Sectional Cross-Over Study in Older Adults.","authors":"Michelle Matos-Duarte, Luis A Berlanga, Emilia Alves, Carlos Moreira, Pedro Pugliesi Abdalla, Jorge Mota, Lucimere Bohn","doi":"10.1123/japa.2024-0382","DOIUrl":"https://doi.org/10.1123/japa.2024-0382","url":null,"abstract":"<p><strong>Background/objectives: </strong>Aging usually leads to physical disability and a detrimental performance in activities of daily living. Among the functional capacity components, cardiorespiratory fitness is one of the most important. The 6-min walk test (6MWT) is the most widely performed test, using the test configuration to determine patients' results and allow interpretation of the results by healthcare professionals. Therefore, this study aimed to compare distances and body accelerations obtained from two 6MWT protocols (25-m walkway vs. 20- by 5-m rectangle).</p><p><strong>Methods: </strong>A cross-over study design was used where 43 older adults (>65 years old) performed the 6MWT using two different setups (25-m walkway vs. 20- by 5-m rectangle), gathering distances covered and body acceleration data.</p><p><strong>Results: </strong>Covered distance was significant superior in the 20- by 5-m rectangle in comparison with the 25-m walkway (p < .05). Axis Z counts per minute were superior in the 25-m walkway than in the 20- by 5-m rectangle (p < .05). Despite that the distances covered in both setups were significantly correlated (r = .891; p < .001), the lack of agreement (p < .001) suggests they should not be considered interchangeably. Additionally, more than 30% of the participants changed their percentile for cardiorespiratory fitness classification according to the two test configurations.</p><p><strong>Conclusion: </strong>6MWT setup determines patient's performances and fitness classification. Then, it is crucial to clearly describe test configuration to properly contextualize older adults' cardiorespiratory fitness by health care professionals. Significance/Implications: Our findings highlight the need to normalize the 6MWT configuration to improve accuracy in the assessment of cardiorespiratory fitness in older adults.</p>","PeriodicalId":51073,"journal":{"name":"Journal of Aging and Physical Activity","volume":" ","pages":"1-8"},"PeriodicalIF":1.5,"publicationDate":"2025-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145356448","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Impact of Multiple Sessions of Anodal Transcranial Direct Current Stimulation on Implicit Motor Learning in High-Activity Older Adults: A Randomized Control Trial.","authors":"Ailin Talimkhani, Razieh Abedi, Aliyeh Daryabor, Zahra Mohammadzadeh, Sedigheh Sadat Naimi, Leila Rahnama","doi":"10.1123/japa.2024-0281","DOIUrl":"10.1123/japa.2024-0281","url":null,"abstract":"<p><strong>Objective: </strong>This study aimed to assess the effects of anodal transcranial direct current stimulation (a-tDCS) of the primary motor cortex on motor learning in high-activity older adults.</p><p><strong>Methods: </strong>Twenty-eight highly active older adults were randomly divided into two groups: sham and a-tDCS groups. During the study, older adults practiced serial response time task for five consecutive days while simultaneously receiving a-tDCS over primary motor cortex. The researchers assessed motor learning by measuring the response time and error rate of sequenced blocks of serial response time task immediately after the intervention, as well as 1 day and 1 week after the completion of intervention.</p><p><strong>Results: </strong>Results showed a significant interaction effect between groups and time for both response time and error rate (p < .001). Within each group, response time and error rate significantly differed from baseline (Day 1) at postintervention time points (Days 5, 6, and 12; p < .05), except for error rate in the sham transcranial direct current stimulation group between baseline and Day 12 (p = .138). Additionally, significant between-group differences were observed immediately after the intervention (p < .01), and at 1 day and 1 week postintervention, with larger reductions in response time (Days 6 and 12; p < .001) and error rate (Days 6 and 12; p < .05 and p < .01, respectively) in a-tDCS group.</p><p><strong>Conclusions: </strong>Applying five consecutive sessions of a-tDCS over primary motor cortex induces significant short- and long-term improvements in motor learning among highly active older adults, highlighting strong impacts of a-tDCS on motor learning in this population.</p>","PeriodicalId":51073,"journal":{"name":"Journal of Aging and Physical Activity","volume":" ","pages":"414-423"},"PeriodicalIF":1.7,"publicationDate":"2025-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145356512","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Effects of Single Session Whole-Body Vibration Training Applied at Different Mechanical Vibration Frequencies on Arterial Stiffness and Heart Rate Variability in Hypertensive Patients.","authors":"Bilge Köksal, Sema Savci, Aylin Tanriverdi Eyolcu, Buse Özcan Kahraman, Ebru Özpelit","doi":"10.1123/japa.2024-0388","DOIUrl":"10.1123/japa.2024-0388","url":null,"abstract":"<p><strong>Background/objectives: </strong>There is limited information about which frequency of the mechanical vibration is more effective in whole-body vibration training in the hypertensive population. The aim of this study was to compare the acute effects of whole-body vibration training on arterial stiffness, heart rate variability, blood pressure, perceived exertion, energy expenditure, and muscle strength using different mechanical vibration frequencies in hypertensive patients.</p><p><strong>Methods: </strong>Thirty-eight individuals diagnosed with hypertension between the ages of 40 and 70 years old participated in this crossover study. Whole-body vibration intervention were performed in random order on different days, with an amplitude of 2-4 mm and three different mechanical vibration frequencies of 0, 25, and 40 Hz. The mechanical vibration device used in the study produced vertical oscillations. A total of five additional exercises were performed in a single session, and each session lasted 15 min. Arterial stiffness was assessed using a noninvasive method, which can perform automatic measurements with a cuff. Heart rate variability was assessed using a 5-min electrocardiography recording. Lower-extremity muscle strength and energy expenditure were assessed using a digital dynamometer and an activity monitor, respectively.</p><p><strong>Results: </strong>There was a significant main effect of time for heart rate, respiratory rate, perceived effort, systolic blood pressure, augmentation index at a heart rate of 75 beats per minute, pulse pressure, mean arterial pressure, high-frequency power, and quadriceps muscle strength (p < .05). However, there was no significant frequency effect for changes in all variables (p > .05).</p><p><strong>Conclusion: </strong>Following whole-body vibration application at mechanical vibration frequencies of 0, 25, and 40 Hz; acute responses on heart rate, blood pressure, respiratory rate, perceived exertion, arterial stiffness, heart rate variability, muscle strength, and energy expenditure produced similar effects. Significance/Implications: More studies investigating the frequency effects of whole-body vibration training applied at different mechanical vibration frequencies on acute responses will provide further guidance for future research.</p>","PeriodicalId":51073,"journal":{"name":"Journal of Aging and Physical Activity","volume":" ","pages":"339-349"},"PeriodicalIF":1.5,"publicationDate":"2025-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145294368","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Utility of Extension to Increase Adherence to the Physical Activity Guidelines in Middle-Aged and Older Adults: A Scoping Review of Benefits and Barriers.","authors":"Hannah K Wilson, Ewan R Williams, Ellen M Evans, Alison C Berg","doi":"10.1123/japa.2024-0376","DOIUrl":"10.1123/japa.2024-0376","url":null,"abstract":"<p><strong>Background: </strong>It is well-established that physical activity (PA) can reduce risks for numerous chronic diseases across the lifespan, especially for middle-aged and older adults. However, engagement in health-enhancing PA behaviors remains suboptimal globally especially in the United States. Thus, there is a need for dissemination and implementation of evidence-based interventions to increase adherence to PA guidelines among middle-aged and older adults. The objectives of this scoping review were to identify (a) effectiveness of Extension-delivered programs as measured by improving PA outcomes among middle-aged and older adults, (b) implementation outcomes of Extension-delivered PA program20s, and (c) implementation determinants (benefits and barriers) of Extension as a PA program delivery system.</p><p><strong>Methods: </strong>A scoping review of papers published from 2008 to 2023 was conducted. One reviewer searched the online databases, including PubMed, MEDLINE, Web of Science (Web of Knowledge), ScienceDirect, Cumulative Index to Nursing and Allied Health Literature, PsycINFO, AgeLine, Education Resources Information Center, and Cochrane Central Register of Controlled Trials using search terms related to Extension, PA, and dissemination and implementation science. The search yielded 937 papers. After a review of titles, abstracts, and full texts 25 papers describing 18 unique programs/interventions were included in the review.</p><p><strong>Results: </strong>The PA outcomes reported in the included studies indicate improved PA levels among middle-aged and older adult participants of Extension programs. Implementation factors evaluated highlighted the high-reach and maintenance potential of Extension as a delivery system for evidence-based PA programs.</p><p><strong>Conclusions: </strong>Extension may offer a sustainable delivery system with large potential reach for implementation of evidence-based PA programs among middle-aged and older adults.</p>","PeriodicalId":51073,"journal":{"name":"Journal of Aging and Physical Activity","volume":" ","pages":"521-539"},"PeriodicalIF":1.7,"publicationDate":"2025-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145281680","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of a Tailored, Community Dementia Program for the Caregiving Dyad.","authors":"Gwen McGhan, Deirdre McCaughey, Jessica Power Cyr, Kristin Flemons, Thomas Naested, Michelle Thompson","doi":"10.1123/japa.2024-0148","DOIUrl":"10.1123/japa.2024-0148","url":null,"abstract":"<p><strong>Background/objectives: </strong>Community programs tailored to the abilities of people living with dementia have the potential to address declines in physical and cognitive functioning while also making a positive difference in the daily lives of the caregiving dyad (person with living with dementia and their family caregivers). Unfortunately, these programs remain uncommon.</p><p><strong>Methods: </strong>This study examined the potential of an 11-week tailored, community dementia program with the acceptability and sustainability of the program being evaluated. The program was held for 3 hr twice weekly, with the goal of facilitating social, cognitive, and physical engagement for the person living with dementia as well as providing a respite period and support group for the family caregivers.</p><p><strong>Results: </strong>No significant changes were found for the caregiving dyad; however insightful information was captured during the focus groups with the family caregivers. From the family caregiver focus groups, four main themes emerged: (a) socialization for the caregiving dyad, (b) engagement and routine fostered by the program, (c) change during the program, and (d) benefits of the program for the family caregivers.</p><p><strong>Conclusion: </strong>By using a multimodal design and combining social, cognitive, and physical activity components, the program has the potential for being a beneficial nonpharmacological intervention. Since the completion of the study, our community partner has continued to offer the program. Significance/Implications: The program shows promise for being able to be tailored to the abilities and needs of the caregiving dyad as well as being integrated into existing organizational structures of communities.</p>","PeriodicalId":51073,"journal":{"name":"Journal of Aging and Physical Activity","volume":" ","pages":"329-338"},"PeriodicalIF":1.5,"publicationDate":"2025-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145281674","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Habitual Physical Activity and Sedentary Behavior as Predictors of Mortality in Older Adults: A Longitudinal Study With 5 Years of Follow-Up.","authors":"Lucas Lima Galvão, Lucas Dos Santos, Leonardo Araújo Vieira, Douglas de Assis Teles Santos, Claudio Andre Barbosa de Lira, Jair Sindra Virtuoso Júnior, Fernanda Mota Prates, Marilia Santos Andrade, Katja Weiss, Beat Knechtle, Rodrigo Luiz Vancini","doi":"10.1123/japa.2024-0305","DOIUrl":"10.1123/japa.2024-0305","url":null,"abstract":"<p><strong>Background: </strong>It is essential to study the various relationships between habitual physical activity (HPA), sedentary behavior (SB), and mortality.</p><p><strong>Objectives: </strong>To explore the predictive capacity of HPA and SB for all-cause mortality and assess the mortality risk associated with the cutoff points predicted.</p><p><strong>Methods: </strong>Prospective cohort study, comprising 332 older adults of both sexes. HPA and SB were assessed using the International Physical Activity Questionnaire. Receiver operating characteristic analysis was used to evaluate the predictive capacity of HPA and SB with mortality. Mortality risks were assessed by Cox regression, with a 95% confidence interval and hazard ratio estimation.</p><p><strong>Results: </strong>HPA and SB demonstrated good accuracy in predicting mortality, based on 150 and 40 min/week of HPA and 495 and 380 min/day of SB, respectively, for men and women. Based on the mentioned cutoff points, both behaviors were found to be associated with the risk of mortality for females, while for males, an association was observed only with SB. In the combined analysis, low HPA practice was identified as a risk factor for mortality, in both sexes.</p><p><strong>Conclusion: </strong>HPA and SB are good predictors of mortality, each with its own associated risks. Additionally, both exhibit different sensitivity and specificity values according to sex. Significance/Implications: We demonstrate that HPA and SB can be used as screening for end-of-life outcomes and can be used in public policies and specific cutoff points, especially for SB.</p>","PeriodicalId":51073,"journal":{"name":"Journal of Aging and Physical Activity","volume":" ","pages":"350-359"},"PeriodicalIF":1.5,"publicationDate":"2025-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145281646","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Rest-Activity Rhythm Characteristics and Cognitive Function in Cognitively Healthy Older Adults.","authors":"Meina Zhang, Karin F Hoth, Kara M Whitaker, Carinda Linkenmeyer, Chooza Moon","doi":"10.1123/japa.2024-0234","DOIUrl":"10.1123/japa.2024-0234","url":null,"abstract":"<p><strong>Background/objective: </strong>Rest-activity rhythm (RAR) describes the pattern of physical activity and rest periods in 24 hr. This study investigated the association between RAR and cognitive performance among older adults.</p><p><strong>Methods: </strong>Sixty community-dwelling older adults aged 70 ± 7.3 years (mean ± standard deviation) wore an Actiwatch Spectrum Plus for 2 weeks and completed a neuropsychological battery to assess cognition. RAR parameters were analyzed using the cosinor approach, with a primary focus on mesor (mean activity level) and pseudo-F-statistics (the rhythmicity of RAR). Cognitive measures assessed immediate memory, memory recall, executive functioning, and processing speed. Multiple linear regression modeling was used to examine associations.</p><p><strong>Results: </strong>RAR mesor was associated with processing speed after adjustment for covariates (β = 12.78, p < .05). Pseudo-F-statistics were associated with immediate memory (β = 2.65, p < .05) and memory recall (β = 4.27, p < .05) in adjusted models.</p><p><strong>Conclusion: </strong>Our study contributes novel insights into the intricate relationship between RAR parameters and cognitive function in later life adults. We found positive associations between RAR mesor and processing speed as well as pseudo-F-statistics and memory in later life adults. Significance/Implications: These findings have potential implications for both research and clinical practice. For researchers, there is a need for further exploration of the complex associations between RAR and cognitive health, preferably through large-scale, diverse, longitudinal studies. From a practical perspective, understanding these associations may guide the development of interventions aimed at promoting cognitive health.</p>","PeriodicalId":51073,"journal":{"name":"Journal of Aging and Physical Activity","volume":" ","pages":"360-369"},"PeriodicalIF":1.5,"publicationDate":"2025-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145245795","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Comparison of Cardiopulmonary Exercise Testing and Shuttle Walk Test in Older Adults With Amnestic Mild Cognitive Impairment.","authors":"Dereck L Salisbury, Vankee Lin, Grace Derboghossian, Fang Yu","doi":"10.1123/japa.2025-0074","DOIUrl":"10.1123/japa.2025-0074","url":null,"abstract":"<p><strong>Background/objectives: </strong>Cardiorespiratory fitness (CRF) has been positively associated with brain volumes and health in older adults and negatively associated with dementia and dementia mortality. Cardiopulmonary exercise testing (CPET) is a gold-standard test for evaluating CRF and for exercise prescription but requires specialized equipment and is time- and resource-intensive. More feasible and valid options for evaluation of CRF are needed. The purpose of this study was to evaluate the validity and relationship of shuttle walk test (SWT) distance with peak oxygen consumption (VO2peak) from cycle ergometer-based CPET in persons with amnestic mild cognitive impairment.</p><p><strong>Methods: </strong>This study is a cross-sectional analysis of the baseline data (n = 80) who completed both CPET and SWT from the ACT (aerobic exercise and cognitive training) Trial. Data were analyzed with simple and multiple linear regression.</p><p><strong>Results: </strong>The study sample was 74.1 (5.7) years old, had 45.0% female representation, and scored 23.2 (2.0) on the Montreal Cognitive Assessment. SWT was positively correlated with VO2peak (r = .57, p < .01). When controlling for age, sex, Montreal Cognitive Assessment, and body mass index, SWT distance remained significantly and positively associated with VO2peak, and explained 6% of the variance in VO2peak (Cohen's ƒ2 = 0.06).</p><p><strong>Conclusion: </strong>This is the first study to investigate the relationship of SWT distance and CPET VO2peak in older adults with amnestic mild cognitive impairment and shows that SWT distance significantly predicts VO2peak. Significance/Implications: Preliminary evidence supports the use of the SWT as a valid assessment of CRF in persons with amnestic mild cognitive impairment.</p>","PeriodicalId":51073,"journal":{"name":"Journal of Aging and Physical Activity","volume":" ","pages":"405-413"},"PeriodicalIF":1.7,"publicationDate":"2025-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145245755","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Association Between Physical Activity in Rural Life and Low Grip Strength: Findings From the Uonuma Cohort Study.","authors":"Yoichi Sato, Keiko Kabasawa, Yumi Ito, Norie Sawada, Shoichiro Tsugane, Kazutoshi Nakamura, Ichiei Narita, Junta Tanaka","doi":"10.1123/japa.2024-0418","DOIUrl":"10.1123/japa.2024-0418","url":null,"abstract":"<p><strong>Background/objectives: </strong>Physical activity is a countermeasure against sarcopenia, but its significance on handgrip strength, a key health outcome, is unclear. We examined the association between physical activity in rural life and handgrip strength, specifically farming activity and snow removal.</p><p><strong>Methods: </strong>Participants aged ≥40 years from a population-based cohort study (2012-2015, median follow-up: 8.6 years, N = 4,774, mean age 64.5 years) were analyzed. Exposures were farming activity (May to November) and snow removal (December to April) and the outcome was low grip strength. Multivariable logistic regression analysis was used to estimate the adjusted odds ratio (AOR) and 95% confidence interval (CI) of low grip strength for each physical activity.</p><p><strong>Results: </strong>Farming activity was inversely associated with low grip strength (AOR: 0.63; 95% CI [0.50, 0.78]), and snow removal (AOR: 0.52; 95% CI [0.40, 0.69]). Compared with participants who engaged in neither activity, those who engaged in either one or both had lower odds ratios of low grip strength (AOR: 0.50; 95% CI [0.36, 0.69] for one, AOR: 0.37; 95% CI [0.27, 0.51] for both; p for trend = .001).</p><p><strong>Conclusions: </strong>This study found an inverse association between physical activity in rural life and low grip strength in middle-aged and older adults. The findings highlight the significance of physical activity related to environmental features in preventing reduced muscle strength in rural communities. Significance/Implications: Physical activity in rural life, such as farming and snow removal, may effectively support muscle strength maintenance and reduce sarcopenia risk in community-dwelling adults.</p>","PeriodicalId":51073,"journal":{"name":"Journal of Aging and Physical Activity","volume":" ","pages":"312-319"},"PeriodicalIF":1.5,"publicationDate":"2025-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145245847","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}