Department of Kinesiology, McMaster University, Hamilton, ON, Canada.
Body Image. 2012 Jun;9(3):311-7. doi: 10.1016/j.bodyim.2012.04.002. Epub 2012 May 18.
Using the exercise and self-esteem model as a guiding framework, this study examined variables related to body image change among 88 overweight and obese women (M(age)=28.4±7.8; M(BMI)=31.6±3.5) participating in a 16-week diet and exercise weight-loss intervention. Measures of body image and potential mechanisms of body image change (actual and perceived physical changes, self-efficacy) were administered at baseline, Weeks 8 and 16. Body image improved significantly over the study time-points (ps<.001). Perceived physical changes accounted for most explained variance (12-37%) in body image change (total R(2)(adj)=.21-.50). Improved perceptions of body fat were a particularly important predictor in each model (ps≤.04). Results support the notion that to improve body image, perceived changes to the body are more important than actual changes. Such information is integral to developing theories to explain body image change and interventions to maximize it.
本研究以运动和自尊模型为指导框架，调查了 88 名超重和肥胖女性（平均年龄=28.4±7.8；平均 BMI=31.6±3.5）在参加为期 16 周的饮食和运动减肥干预期间与体像变化相关的变量。在基线、第 8 周和第 16 周测量体像和体像变化的潜在机制（实际和感知的身体变化、自我效能感）。研究期间，体像显著改善（p<.001）。感知到的身体变化解释了体像变化的大部分方差（12-37%）（总 R(2)(adj)=.21-.50）。在每个模型中，对体脂感知的改善都是一个特别重要的预测因素（p≤.04）。研究结果支持了这样一种观点，即要改善体像，感知到的身体变化比实际变化更重要。这些信息对于发展解释体像变化的理论和最大限度地提高体像的干预措施是必不可少的。
