ArticleFrontiers in aging neuroscience2015
Measuring physical activity in older adults: calibrating cut-points for the MotionWatch 8(©).
Article in Frontiers in aging neuroscience, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers, 2 of them syntheses that pooled it.
What it found
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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
42 citing papers in PubMed, 2 syntheses or guidelines pooled it, 62 citations in OpenAlex.
- Validity of objective methods for measuring sedentary behaviour in older adults: a systematic review.The international journal of behavioral nutrition and physical activity · 2018Pooled it
- Assessment of Physical Activity of Hospitalised Older Adults: A Systematic Review.The journal of nutrition, health & aging · 2018Pooled it
- The effects of collagen peptide supplementation on appetite and post-exercise energy intake in females: a randomised controlled trial.The British journal of nutrition · 2025Trial
- Physical Activity in Hospitalized Persons With Dementia: Feasibility and Validity of the MotionWatch 8.Journal of aging and physical activity · 2021Trial
- Testing the Implementation of Function-focused Care in Assisted Living Settings.Journal of the American Medical Directors Association · 2021Trial
- Sleep and Activity Patterns Are Altered During Early Critical Illness in Mechanically Ventilated Adults.Dimensions of critical care nursing : DCCNTrial
- Predictors of Performing Function Focused Care.International journal of older people nursing · 2026Article
- Association of physical activity and rest-activity rhythm with sustained attention and melatonin among community-dwelling older adults.European review of aging and physical activity : official journal of the European Group for Research into Elderly and Physical Activity · 2026Article
- Physical Activity as a Tool to Improve Sleep Quality for Secure Psychiatric Inpatients: A Feasibility Study.Journal of sleep research · 2026Article
- The Impact of Deep Brain Stimulation of the Subthalamic Nucleus on Sleep-Wake Function and Circadian Rhythms in Patients with Parkinson's Disease.Movement disorders clinical practice · 2025Article
- Associations Between Daily Symptoms and Pain Flares in Rheumatoid Arthritis: Case-Crossover mHealth Study.JMIR mHealth and uHealth · 2025Article
- 24-hour activity cycle behaviors and gray matter volume in mild cognitive impairment.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025Article
- Work is associated with a more robust rest-activity rhythm and high-intensity physical activity among older adults.Aging clinical and experimental research · 2025Article
- Methodological Choices on 24-h Movement Behavior Assessment by Accelerometry: A Scoping Review.Sports medicine - open · 2025Review
- Low-to-Moderate Daytime Physical Activities Predicted Higher-Quality Sleep Among Habitually Active Agropastoralists.American journal of human biology : the official journal of the Human Biology Council · 2025Article
- Behaviour-based movement cut-off points in 3-year old children comparing wrist- with hip-worn actigraphs MW8 and GT3X.PloS one · 2025Article
- The Association of the 24-Hour Activity Cycle Profiles With Cognition in Older Adults With Mild Cognitive Impairment: A Cross-Sectional Study.The journals of gerontology. Series A, Biological sciences and medical sciences · 2024Article
- Associations between Physical Activity and Kyphosis and Lumbar Lordosis Abnormalities, Pain, and Quality of Life in Healthy Older Adults: A Cross-Sectional Study.Healthcare (Basel, Switzerland) · 2023Article
- Factors Associated With Physical Activity in Hospitalized Patients With Dementia.Journal of aging and physical activity · 2023Article
- Physical Activity Intensity Measurement and Health: State of the Art and Future Directions for Scientific Research.International journal of environmental research and public health · 2023Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Given the world's aging population, the staggering economic impact of dementia, the lack of effective treatments, and the fact a cure for dementia is likely many years away - there is an urgent need to develop interventions to prevent or at least delay dementia's progression. Thus, lifestyle approaches to promote healthy aging are an important line of scientific inquiry. Good sleep quality and physical activity (PA) are pillars of healthy aging, and as such, are an increasing focus for intervention studies aimed at promoting health and cognitive function in older adults. However, PA and sleep quality are difficult constructs to evaluate empirically. Wrist-worn actigraphy (WWA) is currently accepted as a valid objective measure of sleep quality. The MotionWatch 8(©) (MW8) is the latest WWA, replacing the discontinued Actiwatch 4 and Actiwatch 7. In the current study, concurrent measurement of WWA and indirect calorimetry was performed during 10 different activities of daily living for 23 healthy older adults (aged 57-80 years) to determine cut-points for sedentary and moderate-vigorous PA - using receiver operating characteristic curves - with the cut-point for light activity being the boundaries between sedentary and moderate to vigorous PA. In addition, simultaneous multi-unit reliability was determined for the MW8 using inter-class correlations. The current study is the first to validate MW8 activity count cut-points - for sedentary, light, and moderate to vigorous PA - specifically for use with healthy older adults. These cut-points provide important context for better interpretation of MW8 activity counts, and a greater understanding of what these counts mean in terms of PA. Hence, our results validate another level of analysis for researchers using the MW8 in studies aiming to examine PA and sleep quality concurrently in older adults.
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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.