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Behavioural support of a proposed neurocognitive connection between physical activity and improved eating behaviour

James J Annesi¹, Kandice J Porter²

¹Department of Health Promotion and Physical Education, Kennesaw State University, USA; Wellness Department, YMCA of Metro Atlanta, USA.

Obesity Research & Clinical Practice

|August 6, 2014

Abstract

Problem:

An explanation of the association between physical activity and improved eating behaviours has recently been posited via the effect of physical activity on executive functions of the brain resulting in a reduction in the hedonic drive to overeat. Decomposition and clarification of embedded relationship through a behavioural/psychological framework was sought.

Methods:

Changes in theory-based psychosocial factors over 26 weeks were tested with 134 severely obese women (age 41.7±10.4 years) initiating a physical activity support treatment. Mediation and reciprocal effects analyses incorporating these changes were then computed.

Results:

Significant improvements in mood, self-regulation for eating, and self-efficacy for controlled eating were found. Emanating from mood change, a reciprocal relationship between changes in the self-regulation and self-efficacy measures was found. Thus, each factor reinforced the other's change.

Conclusion:

Findings suggest a convergence of neurocognitively and behaviourally based explanations of the relations of physical activity and controlled eating. Implications for behavioural weight-loss theory and treatments were suggested.

Keywords:

Behavioural Eating behaviour Neurocognitive Obesity Physical activity

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