Understanding motivation for exercise: A self-determination theory perspective. Canadian Psychology,49

Understanding the factors that motivate health-enhancing physical activity has considerable merit given the role of this lifestyle behaviour in combating disease and promoting quality of life. The purpose of this article is to provide a broad overview of research investigating participation issues in exercise from the perspective of self-determination theory (SDT; Deci & Ryan, 2002). Evidence informing the application of SDT to the study of motivational issues in exercise is reviewed around three central questions: (a) Does the quality of motivation regulating exercise behaviour “matter”?, (b) How important are basic psycho-logical needs within exercise contexts?, and (c) Can contextual variables be manipulated to create adaptive environments for exercise? The available evidence is supportive of many propositions set forth within SDT by Deci and Ryan’s (2002). Future avenues for exercise motivation research are offered based on the available evidence with a view to addressing unresolved issues and advancing SDT’s development