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Reinforcing value of physical activity as a determinant of child activity level
L H Epstein1, C K Kilanowski, A R Consalvi
1Department of Psychology, State University of New York at Buffalo, 14260, USA. lhenet@acsu.buffalo.edu
Insights
The relative reinforcing value of physical activity (RRVPA) predicts children's activity levels. Higher RRVPA is linked to more exercise bouts, suggesting children prefer shorter, frequent activity sessions.
Area of Science:
- Behavioral science
- Pediatric health
- Exercise physiology
Background:
- Understanding determinants of physical activity in children is crucial for public health.
- The relative reinforcing value of physical activity (RRVPA) is a potential predictor of engagement.
Purpose of the Study:
- To investigate if laboratory-measured RRVPA predicts physical activity in the natural environment among children.
- To explore the relationship between RRVPA, physical activity levels, and child obesity.
Main Methods:
- Thirty-two children aged 6-11 years participated.
- Relative reinforcing value of physical activity (RRVPA) was assessed in a laboratory setting.
- Physical activity was measured in the natural environment.
Main Results:
- RRVPA significantly correlated with overall physical activity level (r = .42, p < .05).
- RRVPA predicted physical activity level, alongside child obesity.
- RRVPA was associated with the number of moderate-to-vigorous physical activity bouts (r = .35, p < .05), not their duration.
Conclusions:
- RRVPA is a significant determinant of children's physical activity levels.
- Findings suggest children may find multiple, shorter exercise bouts more reinforcing than fewer, longer ones.
Abstract:
This study examined whether the relative reinforcing value of physical activity (RRVPA) measured in the laboratory predicted physical activity measured in the natural environment in 32 6-11-year-old children. RRVPA correlated with physical activity level (r = .42, p < .05), and contributed to the prediction of physical activity level along with child obesity. RRVPA was related to the number of moderate to vigorous physical activity exercise bouts (r = .35, p < .05), not to the duration of those bouts. These results suggest that RRVPA is a determinant of child physical activity level, and that it may be naturally more reinforcing for children to engage in multiple, short exercise bouts than fewer, more extended bouts.