Department of Kinesiology, McMaster University, Hamilton, ON, Canada.
Department of Kinesiology and Health Sciences, University of Waterloo, Waterloo, ON, Canada.
J Sport Exerc Psychol. 2024 Oct 21;46(6):329-340. doi: 10.1123/jsep.2023-0280. Print 2024 Dec 1.
Many adults worldwide do not meet current physical activity (PA) guidelines. Mental fatigue decreases the likelihood of choosing to engage in PA. Message framing may enhance PA motivation when fatigued. We examined the effects of mental fatigue and message framing on PA motivation with additional focus on the messaging "congruency effect." Three hundred and twenty undergraduates completed measures of dispositional motivational orientation and were exposed to either gain-framed or loss-framed messages before completing an effort discounting questionnaire. Results showed lower motivation to engage in PA of higher intensities and longer durations. Direct effects of message framing on PA motivation were not significant. Interaction effects revealed that participants receiving messages congruent with their dominant motivational orientation showed increased motivation for light-intensity PA and decreased motivation for vigorous-intensity PA as mental fatigue increased. Findings suggest that providing messages congruent with one's dominant motivational orientation may increase motivation for engaging in light-intensity PA when fatigued.
全球许多成年人都不符合当前的身体活动（PA）指南。精神疲劳降低了人们选择进行 PA 的可能性。信息框架在疲劳时可能会增强 PA 动机。我们研究了精神疲劳和信息框架对 PA 动机的影响，并特别关注信息的“一致性效应”。320 名本科生完成了关于习惯性动机取向的测量，然后在完成努力折扣问卷之前，他们接触到了收益框架或损失框架的信息。结果表明，人们进行高强度和长时间 PA 的动机较低。信息框架对 PA 动机的直接影响并不显著。交互效应表明，当精神疲劳增加时，接收到与主导动机取向一致的信息的参与者表现出对低强度 PA 的动机增加，对高强度 PA 的动机减少。研究结果表明，在疲劳时提供与主导动机取向一致的信息可能会增加人们进行低强度 PA 的动机。
