ArticleThe journals of gerontology. Series A, Biological sciences and medical sciences2018
The Relationship Between Physical Activity and Frailty Among U.S. Older Adults Based on Hourly Accelerometry Data.
Article in The journals of gerontology. Series A, Biological sciences and medical sciences, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers, 3 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
37 citing papers in PubMed, 3 syntheses or guidelines pooled it, 69 citations in OpenAlex.
- Timing of physical activity within the 24-hour day and its influence on health: a systematic review.Health promotion and chronic disease prevention in Canada : research, policy and practice · 2022Pooled it
- Effect of physical activity on the risk of frailty: A systematic review and meta-analysis.PloS one · 2022Pooled it
- How wearable sensors have been utilised to evaluate frailty in older adults: a systematic review.Journal of neuroengineering and rehabilitation · 2021Pooled it
- Trial
- The effects of a moderate physical activity intervention on physical fitness and cognition in healthy elderly with low levels of physical activity: a randomized controlled trial.Alzheimer's research & therapy · 2023Trial
- Stretching and Multicomponent Training to Functional Capacities of Older Women: A Randomized Study.International journal of environmental research and public health · 2021Trial
- Within-day activity patterns in knee osteoarthritis: frailty signal or treatment marker? Comment on the article by Liles et al.Arthritis care & research · 2026Article
- Relationship between 24-h movement behaviors and frailty-a scoping review.Frontiers in public health · 2026Article
- An in-home engagement and usability study of GeRI: an open-source platform for remote symptom assessment and wearable activity monitoring in men with prostate cancer.Frontiers in digital health · 2026Article
- Article
- Wearable Technologies for Health Promotion and Disease Prevention in Older Adults: Systematic Scoping Review and Evidence Map.Journal of medical Internet research · 2025Article
- Workshop Report-Heterogeneity and Successful Aging Part II: Approaches to Investigate Heterogeneity in Aging Research.The journals of gerontology. Series A, Biological sciences and medical sciences · 2025Article
- Morning physical activity may be more beneficial for blood lipids than afternoon physical activity in older adults: a cross-sectional study.European journal of applied physiology · 2024Article
- Artificial intelligence-enhanced patient evaluation: bridging art and science.European heart journal · 2024Review
- Data Analytics in Physical Activity Studies With Accelerometers: Scoping Review.Journal of medical Internet research · 2024Article
- Hourly step recommendations to achieve daily goals for working and older adults.Communications medicine · 2024Article
- The impact of social participation on Subjective Wellbeing in the older adult: the mediating role of anxiety and the moderating role of education.Frontiers in public health · 2024Article
- Higher baseline resting metabolic rate is associated with 1-year frailty decline among older adults residing in an urban area.BMC geriatrics · 2023Article
- Physical activity plays a crucial role in multidomain intervention for frailty prevention.Aging clinical and experimental research · 2023Article
- Indoor Mobility, Frailty, and Disability in Community-Dwelling Older Adults: A Mediation Model.International journal of environmental research and public health · 2022Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors at 2 institutions in 1 country.
Funding
Abstract
Background/Objectives: Accelerometry measures older adult (in)activity with high resolution. Most studies summarize activity over the entire wear time. We extend prior work by analyzing hourly activity data to determine how frailty and other characteristics relate to activity among older adults. Methods: Using wrist accelerometry data collected from the National Social Life, Health and Aging Project (n = 651), a nationally-representative probability sample of older adults, we used mixed effects linear regression to model the logarithm of hourly counts per minute as a function of an adapted phenotypic frailty score, adjusting for demographic and health characteristics, season, day of week and time of day. Results: Higher frailty scores were associated with modestly lower activity; each frailty point (0-4) corresponded to a 7% lower mean hourly counts per minute. Older age, more comorbidities, male gender, and higher BMI were also associated with lower activity, though the latter was not evident among frail respondents. After adjusting for differences associated with frailty and other covariates, a substantial amount of between-individual variability in activity remained, as well as within-individual variability across days. Conclusion: Our findings indicate that frail elders, men, those who are older, overweight or have multiple comorbidities are most likely to have low activity. However, residual differences between individuals remain larger than the differences associated with frailty and other covariates. We suggest defining individual-specific activity goals and further research to identify the sources of between-individual variability to better understand how activity reflects health status and to permit the development of more effective interventions.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.