The effect of physical activity on weight loss is mediated by eating self-regulation
Patient Education and Counseling, 2010•Elsevier
OBJECTIVE: This study tested whether different forms of physical activity (PA) were
associated with eating self-regulation during weight control, and if changes in eating
behavior mediated the relationship between PA and weight loss, in overweight/obese
women. METHODS: 239 women (37.6±7.0 years; 31.3±4.1 kg/m2) participated. The
intervention group received a 12-month group behavioral treatment designed to increase
autonomy and self-regulation for weight control. Controls received a health education …
associated with eating self-regulation during weight control, and if changes in eating
behavior mediated the relationship between PA and weight loss, in overweight/obese
women. METHODS: 239 women (37.6±7.0 years; 31.3±4.1 kg/m2) participated. The
intervention group received a 12-month group behavioral treatment designed to increase
autonomy and self-regulation for weight control. Controls received a health education …
OBJECTIVE
This study tested whether different forms of physical activity (PA) were associated with eating self-regulation during weight control, and if changes in eating behavior mediated the relationship between PA and weight loss, in overweight/obese women.
METHODS
239 women (37.6±7.0 years; 31.3±4.1kg/m2) participated. The intervention group received a 12-month group behavioral treatment designed to increase autonomy and self-regulation for weight control. Controls received a health education program. Assessments included body weight, structured and lifestyle exercise/PA, and eating self-regulation.
RESULTS
Moderate+vigorous and lifestyle PA were associated with 12-month change in most eating variables (p<0.05) and with body weight change (p<0.01). Mediation analysis showed that flexible cognitive restraint and emotional eating fully mediated the relation between lifestyle PA and weight change (effect ratio: 0.63). About 34% of the effect of moderate+vigorous PA on weight change was explained by these same mediators (partial mediation).
CONCLUSION
Exercise and PA may positively influence weight control through eating self-regulation. Flexible dietary control and reduced emotional overeating are mechanisms by which an active lifestyle can contribute to long-term weight management.
PRACTICE IMPLICATIONS
Regular exercise and PA can contribute to improved eating behaviors during weight management. This could represent an important incentive for people seeking weight control.
Elsevier
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