Department of Kinesiology, Pennsylvania State University, University Park, PA, USA.
J Sport Exerc Psychol. 2010 Dec;32(6):862-80. doi: 10.1123/jsep.32.6.862.
This 2-year prospective study examined the exercise and self-esteem model in middle-aged women (N = 143) previously enrolled in a randomized controlled exercise trial. Across the 2-year period, increases in physical activity (PA) and self-efficacy and reductions in body mass index (BMI) were associated with improved subdomain self-perceptions relative to physical condition, and reductions in BMI were associated with improved subdomain self-perceptions relative to physical condition and body attractiveness. The effects of PA, self-efficacy, and BMI on changes in physical self-worth and global self-esteem were mediated by changes in self-perceptions relative to physical condition and body attractiveness. The results of this longitudinal analysis support the hierarchical and multidimensional structure of self-esteem and indicate that middle-aged women can enhance how they perceive their condition and body attractiveness by continued participation in physical activity, increasing their self-efficacy, and maintaining healthy BMI levels.
这项为期两年的前瞻性研究调查了先前参加随机对照运动试验的中年女性（N=143）的运动和自尊模型。在两年期间，身体活动（PA）和自我效能的增加以及身体质量指数（BMI）的降低与相对于身体状况的子领域自我感知的改善相关，BMI 的降低与相对于身体状况和身体吸引力的子领域自我感知的改善相关。PA、自我效能和 BMI 对身体自我价值和整体自尊变化的影响是通过相对于身体状况和身体吸引力的自我感知变化来介导的。这项纵向分析的结果支持自尊的分层和多维结构，并表明中年女性可以通过持续参与身体活动、提高自我效能和保持健康的 BMI 水平来增强对自身状况和身体吸引力的认知。
