ArticleInternational journal of environmental research and public health2022
The Physical Behaviour Intensity Spectrum and Body Mass Index in School-Aged Youth: A Compositional Analysis of Pooled Individual Participant Data.
Article in International journal of environmental research and public health, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- Investigating the impact of physical activity on BMI, motor skills, and sleep patterns in elementary school children.Frontiers in public health · 2025Trial
- Losing sleep influences dietary intake in children: a longitudinal compositional analysis of a randomised crossover trial.The international journal of behavioral nutrition and physical activity · 2024Trial
- Trajectories of children's physical activity volume and intensity across the school year: the Ready, Set, Move project.Journal of activity, sedentary and sleep behaviors · 2025Article
- Physical Activity Volume and Intensity for Healthy Body Mass Index and Cardiorespiratory Fitness: Enhancing the Translation of Children's and Adolescents' Accelerometer Physical Activity Reference Values.Scandinavian journal of medicine & science in sports · 2025Article
- Associations between motor competence and physical activity levels of children with intellectual disabilities and/or autism spectrum disorder: Movement matters.Journal of intellectual disabilities : JOID · 2024Article
- The association between reallocations of time and health using compositional data analysis: a systematic scoping review with an interactive data exploration interface.The international journal of behavioral nutrition and physical activity · 2023Article
- Reference values for wrist-worn accelerometer physical activity metrics in England children and adolescents.The international journal of behavioral nutrition and physical activity · 2023Article
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Authors and funding
18 authors.
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Abstract
We examined the compositional associations between the intensity spectrum derived from incremental acceleration intensity bands and the body mass index (BMI) z-score in youth, and investigated the estimated differences in BMI z-score following time reallocations between intensity bands. School-aged youth from 63 schools wore wrist accelerometers, and data of 1453 participants (57.5% girls) were analysed. Nine acceleration intensity bands (range: 0−50 mg to ≥700 mg) were used to generate time-use compositions. Multivariate regression assessed the associations between intensity band compositions and BMI z-scores. Compositional isotemporal substitution estimated the differences in BMI z-score following time reallocations between intensity bands. The ≥700 mg intensity bandwas strongly and inversely associated with BMI z-score (p < 0.001). The estimated differences in BMI z-score when 5 min were reallocated to and from the ≥700 mg band and reallocated equally among the remaining bands were −0.28 and 0.44, respectively (boys), and −0.39 and 1.06, respectively (girls). The time in the ≥700 mg intensity band was significantly associated with BMI z-score, irrespective of sex. When even modest durations of time in this band were reallocated, the asymmetrical estimated differences in BMI z-score were clinically meaningful. The findings highlight the utility of the full physical activity intensity spectrum over a priori-determined absolute intensity cut-point approaches.
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