Substituting sedentary time with sleep or physical activity and subsequent weight‐loss maintenance
Authors' conclusion
Sedentary behavior had little or no influence on subsequent weight-loss maintenance, but during the early stages of a weight-loss maintenance program, substituting sedentary behavior with moderate-to-vigorous physical activity may prevent a gain in body fat percentage.
Study context
- Population
- Adults from the NoHoW trial with successful weight loss of ≥5% during the 12 months prior to baseline and BMI ≥25 kg/m² before losing weight
- Participants
- 1,152 adults
- Exposure
- Substitution of sedentary time with sleep or physical activity at different intensities
- Outcome
- Change in body weight
Methodological detailsisotemporal substitution models, objectively measured physical activity and sleep, Physical activity and sleep objectively measured during a 14-day period at baseline
- Isotemporal substitution models
- Objectively measured physical activity and sleep
- Physical activity and sleep objectively measured during a 14-day period at baseline
Main finding
As reported in the abstract
- No associations between activity substitutions and changes in body weight
- Isotemporal substitution models
Observational data: associations, not effects.
Secondary outcomes
Change in waist circumference
- No associations between activity substitutions and changes in waist circumference
Change in body fat percentage, substituting sedentary behavior with moderate-to-vigorous physical activity · first 6 months of the trial
- Change in body fat % per 30 minutes higher moderate-to-vigorous physical activity
- −0.33% (95% CI: −0.60% to −0.07%; p = 0.013)
Original publication
Substituting sedentary time with sleep or physical activity and subsequent weight‐loss maintenance. Obesity (Silver Spring). Published 27 December 2022. doi:10.
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