ArticleJournal of intellectual disability research : JIDR2023
Calibration of hip accelerometers for measuring physical activity and sedentary behaviours in adults with Down syndrome.
Article in Journal of intellectual disability research : JIDR, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed, 11 citations in OpenAlex.
- Accelerometer Output and Oxygen Uptake in Adults With and Without Down Syndrome: METs vs. Percent VOJournal of intellectual disability research : JIDR · 2025Article
- Data Analytics in Physical Activity Studies With Accelerometers: Scoping Review.Journal of medical Internet research · 2024Article
- The promotion of physical activity for use in Alzheimer's disease prevention trials in adults with Down syndrome: Results from a 12-month randomized trial.Alzheimer's & dementia (New York, N. Y.)Article
- Physical activity as a resistance or resilience mechanism in Down syndrome Alzheimer's disease.Alzheimer's & dementia (New York, N. Y.)Article
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Authors and funding
5 authors at 2 institutions in 1 country.
Funding
Abstract
backgroundThe knowledge base on physical activity and sedentary behaviour in adults with Down syndrome (DS) may advance by accelerometer calibration studies. This study aimed to develop cut-points for sedentary behaviour and moderate-to-vigorous physical activity (MVPA) for adults with DS based on output from accelerometers worn on the dominant and non-dominant hips.
methodsSixteen adults with DS (10 men; age 31 ± 15 years) performed 12 tasks including sedentary behaviours and physical activities. We obtained metabolic equivalents (METs) with indirect calorimetry and vector magnitude (VM) output from triaxial accelerometers (wGT3X-BT, ActiGraph) worn on the dominant and non-dominant hips. Receiver operating characteristic curves were used to identify optimal VM cut-points that maximised sensitivity and specificity.
resultsOverall classification accuracy was very high (area under the ROC curve: 0.95 and 0.92 for sedentary and MVPA models, respectively). For the non-dominant hip, the optimal VM cut-points were (1) sedentary behaviour ≤236 counts·min
conclusionsThe presented VM cut-points for sedentary behaviour and MVPA for adults with DS had high classification accuracy. There were small differences in accelerometer cut-points between the dominant and non-dominant hip.
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Registered trials
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