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Energy Compensation Following a Supervised Exercise Intervention in Women Living With Overweight/Obesity Is
Marie-Ève Riou1, Simon Jomphe-Tremblay1, Gilles Lamothe2
1Behavioural and Metabolic Research Unit (BMRU), School of Human Kinetics, Faculty of Health Sciences, University of Ottawa, Ottawa, ON, Canada.
Lower intensity exercise in women with overweight/obesity led to lower energy compensation, suggesting non-structured physical activity significantly impacts body composition changes.
Area of Science:
- Exercise Physiology
- Human Metabolism
- Obesity Research
Background:
- Body composition changes are not always proportional to exercise energy expenditure.
- Understanding energy compensation (EC) is crucial for managing weight.
- Individual responses to exercise interventions vary.
Purpose of the Study:
- To investigate energy compensation in response to exercise interventions of varying intensities.
- To determine the role of exercise intensity and non-structured physical activity in energy balance.
- To analyze changes in body composition and related factors.
Main Methods:
- Randomized controlled trial with 21 women (overweight/obesity) over 3 months.
- Exercise interventions at low (LOW) or moderate (MOD) intensity, matched for 1500 kcal/week expenditure.
- Assessment of body composition, energy intake, energy expenditure, physical activity, appetite, eating behavior, and food reward.
Main Results:
- Energy compensation was significantly different between LOW (49%) and MOD (161%) groups.
- Energy intake remained stable, but eating behaviors and food reward changed.
- Non-structured physical activity decreased across the intervention, independent of exercise intensity.
Conclusions:
- Lower intensity exercise resulted in lower energy compensation in women with overweight/obesity.
- Non-structured physical activity is a key mediator of exercise effects on energy balance and body composition.
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