Hold your strength! Motivation, attention, and emotion as potential psychological mediators between cognitive and physical self-control

Stocker, Eva; Seiler, Roland; Schmid, Jürg; Englert, Chris (2019). Hold your strength! Motivation, attention, and emotion as potential psychological mediators between cognitive and physical self-control. Sport, exercise, and performance psychology, 9(2), pp. 167-182. American Psychological Association 10.1037/spy0000173

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The process model of self-control posits motivation, emotion, and attention as psychological mediators in the relationship between cognitive and physical self-control. However, this model has never been tested in a sport context. Participants (N=69) completed 2 isometric biceps endurance trials (physical self-control task; T1 and T2), separated by a 6-min cognitive manip-ulation of self-control. Motivation and emotion were assessed before the respective biceps task, and attention was assessed in terms of gaze behavior on task-relevant in comparison with task-irrelevant stimuli during the biceps task (T1 and T2). To test the hypothesis that motivation, emotion, and attention mediated the relationship between cognitive and physical self-control, aparallel multiple mediator model was calculated. The results indicate that motivation, emotion,and attention (relative change between T1 and T2) did not mediate the relationship between cognitive and physical self-control (b=-0.01, 95% bias corrected and accelerated [BCa]confidence interval [-0.06, 0.03]) and that the exertion of cognitive self-control did not necessarily lead to impaired performance. Future studies should investigate the role of task demands and other potential mediators of self-control (e.g., belief about a limited willpower).

Keywords:self-regulation, process model, psychological mediators, sports, mediation model

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