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Comparison of daily physical activity parameters using objective methods between overweight and normal-weight
Jonghoon Park1, Kazuko Ishikawa-Takata2, Sangjik Lee3
1Department of Physical Education, Korea University, Seoul 02841, Republic of Korea.
Journal of Sport and Health Science
|October 26, 2018
Summary
Overweight boys spent less time in locomotive moderate-to-vigorous physical activity (MVPA) than normal-weight boys, though overall physical activity level (PAL) did not differ. Locomotive MVPA was linked to higher PAL.
Area of Science:
- Pediatric obesity research
- Exercise physiology
- Human movement science
Background:
- Childhood obesity is a growing public health concern.
- Understanding physical activity patterns in normal-weight versus overweight children is crucial for developing effective interventions.
- Previous studies have shown mixed results regarding physical activity differences between weight groups.
Purpose of the Study:
- To compare energy expenditure, intensity, and type of physical activity between normal-weight and overweight boys aged 9-12.
- To investigate the relationship between different physical activity metrics and overall physical activity level (PAL).
Main Methods:
- 45 Korean boys (19 normal-weight, 26 overweight) participated.
- Doubly labeled water (DLW) and tri-axial accelerometry were used to assess daily physical activity under free-living conditions.
- Resting metabolic rate (RMR) was measured via indirect calorimetry to calculate PAL (Total Energy Expenditure/RMR).
Main Results:
- No significant differences in Physical Activity Level (PAL) were found between normal-weight and overweight boys.
- Overweight boys exhibited significantly less time in locomotive moderate-to-vigorous physical activity (MVPA) compared to normal-weight boys.
- Time spent in locomotive activity, particularly locomotive MVPA, was positively associated with PAL in all participants.
Conclusions:
- Overweight boys may engage in less locomotive moderate-to-vigorous physical activity (MVPA), potentially impacting their overall energy expenditure.
- Locomotive MVPA appears to be a significant contributor to the Physical Activity Level (PAL).
- Targeting improvements in locomotive MVPA could be a key strategy for managing weight in children.
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