Abstract
ABSTRACT
Background and Aims
Movement behaviours, including sedentary behaviour (SB), physical activity (PA), and sleep, play a crucial role in cardiometabolic health. This study evaluated their relationships and assessed the effects of reallocating SB to different PA intensities.
Methods
This cross-sectional study conducted between March 2024 and March 2025, included 75 individuals from Sub-Saharan Africa (SSA) (51% female; mean age: 40 ± 10 years). Time (minutes/day) spent in the different movement behaviours was determined using wrist-worn accelerometers (GENEActiv, UK). Cardiometabolic outcomes included body mass index (BMI), waist circumference (WC), HDL cholesterol, total: HDL cholesterol ratio, random glucose, and cardiorespiratory fitness. Pairwise correlations and compositional analyses were performed to investigate associations between movement behaviours and cardiometabolic outcomes.
Results
The median daily movement composition (minutes) was sleep (346), SB (672), LPA (112), and MVPA (96). MVPA showed a moderate inverse relationship with total cholesterol and was the only movement category associated with cardiorespiratory fitness. Sleep duration showed an inverse relationship with BMI and WC. Reallocating 30 min of SB to sleep, LPA, or MVPA did not result in significant changes in cardiometabolic outcomes (p > 0.05 for all comparisons).
Conclusion
Moderate-to-vigorous physical activity showed the most consistent associations with favourable cardiometabolic markers, suggesting it may play a particularly important role in cardiometabolic health among this population. However, these benefits may be dependent on prolonged exposures. Sleep regulation may also contribute to the management of adiposity.
Background and Aims
Movement behaviours, including sedentary behaviour (SB), physical activity (PA), and sleep, play a crucial role in cardiometabolic health. This study evaluated their relationships and assessed the effects of reallocating SB to different PA intensities.
Methods
This cross-sectional study conducted between March 2024 and March 2025, included 75 individuals from Sub-Saharan Africa (SSA) (51% female; mean age: 40 ± 10 years). Time (minutes/day) spent in the different movement behaviours was determined using wrist-worn accelerometers (GENEActiv, UK). Cardiometabolic outcomes included body mass index (BMI), waist circumference (WC), HDL cholesterol, total: HDL cholesterol ratio, random glucose, and cardiorespiratory fitness. Pairwise correlations and compositional analyses were performed to investigate associations between movement behaviours and cardiometabolic outcomes.
Results
The median daily movement composition (minutes) was sleep (346), SB (672), LPA (112), and MVPA (96). MVPA showed a moderate inverse relationship with total cholesterol and was the only movement category associated with cardiorespiratory fitness. Sleep duration showed an inverse relationship with BMI and WC. Reallocating 30 min of SB to sleep, LPA, or MVPA did not result in significant changes in cardiometabolic outcomes (p > 0.05 for all comparisons).
Conclusion
Moderate-to-vigorous physical activity showed the most consistent associations with favourable cardiometabolic markers, suggesting it may play a particularly important role in cardiometabolic health among this population. However, these benefits may be dependent on prolonged exposures. Sleep regulation may also contribute to the management of adiposity.
| Original language | English |
|---|---|
| Article number | e72618 |
| Number of pages | 9 |
| Journal | Health Science Reports |
| Volume | 9 |
| Issue number | 6 |
| Early online date | 12 Jun 2026 |
| DOIs | |
| Publication status | Published - Jun 2026 |
Bibliographical note
This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, providedthe original work is properly cited.Funding
The authors would like to thank participants for their time in undertaking the present study. The authors acknowledge the use of Microsoft Copilot in editing this manuscript. The study was supported by the Coventry University Trailblazer award for the PhD studentship developed by Dr N. C. Okwose and awarded to DAI. The design of the study, data collection, analyses, interpretation of data, and drafting of the manuscript do not reflect the views and opinions of the funders.
| Funders |
|---|
| Coventry University |
Keywords
- compositional analysis
- isotemporal substitution
- physical activity
- sedentary
- sleep
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