A call to experimentally study acute affect-regulation mechanisms specific to driven exercise in eating disorders

David R Kolar, Sasha Gorrell, David R Kolar, Sasha Gorrell

Abstract

Driven exercise (i.e., feeling compelled to exercise to control one's weight or shape, to obtain other positive consequences of exercising, or to avoid other negative consequences of not exercising) is a common phenomenon in individuals with eating disorders (EDs), typically associated with negative clinical outcomes. Current theoretical models of driven exercise highlight the short-term affect-regulating outcome of acute driven exercise, which is implicated to maintain this symptom either by positive or negative reinforcement. However, few studies have actually investigated cognitive, affective, and psychobiological mechanisms related to acute driven exercise. In particular, experimental studies that directly test mechanisms leading to the short-term affective improvement after acute driven exercise are scarce. In this article, we therefore propose potential cognitive, affective, and psychobiological mechanisms that could explain the affect-regulating function of driven exercise in individuals with EDs. In addition, we suggest examples of experimental studies that could directly test these mechanisms in individuals with EDs, as recent studies have demonstrated the safety of supervised exercise in EDs research. Our aim of stimulating research on the underlying causes and maintenance factors of driven exercise in EDs has the potential to critically inform treatment development for this high-risk population.

Keywords: anorexia nervosa; bulimia nervosa; driven exercise; eating disorders; emotion regulation; experimental; physical activity; psychobiology.

Conflict of interest statement

Conflict of Interest:

The authors have no conflict to declare.

© 2020 The Authors. International Journal of Eating Disorders published by Wiley Periodicals LLC.

Figures

Figure 1.
Figure 1.
Proposed key mechanisms of the short-term affect regulating outcome of acute driven exercise in individuals with eating disorders. Note: BDNF: Brain-derived neurotrophic factor. NA: Negative affect. PA: Positive affect.

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