Department of Psychology, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, USA.
Barnes-Jewish Hospital System in St. Louis, St. Louis, Missouri, USA.
J Am Coll Health. 2024 Jul;72(5):1473-1479. doi: 10.1080/07448481.2022.2080508. Epub 2022 Jun 21.
Objective: Body dissatisfaction elevates the risk for disordered eating behaviors. Excessive exercise is prevalent among college women and associated with harm. Risk theory posits a bidirectional relationship between risk factors for disordered eating behaviors and the behaviors themselves. This study investigated the longitudinal, reciprocal relationship between body dissatisfaction and excessive exercise. Participants and methods: College women ( = 302) assessed in August (baseline) and November (follow-up). Results: Baseline body dissatisfaction significantly predicted increases in excessive exercise endorsement at follow-up, controlling for baseline excessive exercise endorsement and body mass index (BMI). Baseline excessive exercise endorsement predicted increases in body dissatisfaction at follow-up, controlling for baseline body dissatisfaction and BMI. Conclusions: Findings support the presence of a positive feedback loop between body dissatisfaction and excessive exercise; both predict increases in risk for the other, regardless of weight status. Future research should test whether this process is ongoing and predicts further distress.
身体不满会增加饮食失调行为的风险。过度锻炼在大学生女性中很常见，并且会造成伤害。风险理论假设饮食失调行为的风险因素与行为本身之间存在双向关系。本研究调查了身体不满和过度锻炼之间的纵向、相互关系。
在 8 月（基线）和 11 月（随访）评估了女大学生（n=302）。
在控制基线时的过度锻炼和体重指数（BMI）后，基线身体不满显著预测了随访时过度锻炼的增加。基线过度锻炼的增加预测了随访时身体不满的增加，控制了基线时的身体不满和 BMI。
研究结果支持身体不满和过度锻炼之间存在正反馈循环；无论体重状况如何，两者都预示着风险的增加。未来的研究应该检验这个过程是否持续，并预测进一步的痛苦。
