Faculty of Health Sciences, Western University, London, ON, Canada.
Eur J Sport Sci. 2013;13(4):407-13. doi: 10.1080/17461391.2012.660504. Epub 2012 Mar 19.
Self-presentational concerns, shown to influence exercise-related cognitions and behaviours, are evaluated frequently in the absence of exercise or following a single bout of physical activity. The purpose of the present study was to examine longitudinally, the extent to which participating in a structured 12-week cardiovascular exercise intervention elicited changes in self-presentational efficacy expectancy (SPEE) and social physique anxiety (SPA). Participants were 80 sedentary women with overweight or obesity (mean body mass index 29.02 kg/m(2), SD=4.71) between the ages of 19 and 45 wanting to begin an exercise programme (mean age 33.4 years, SD=7.6). The Self-Presentational Efficacy Scale (SPES) and the Social Physique Anxiety Scale (SPAS) were completed by each participant prior to commencing the study, and at the 6- and 12-week time points. For those who completed the programme, repeated measures ANOVAs indicated significant increases in SPEE between baseline and week 6 (P<0.001, η(2)=0.37), and week 6 to 12 (P<0.05, η(2)=0.10), while SPA decreased significantly between baseline and week 6 (P<0.01, η(2)=0.16). Bivariate correlation analyses revealed that length of participation in the study was positively related to SPEE and negatively related to SPA. Implications of focusing on these variables within a physical activity intervention are discussed with respect to exercise behaviour, programme development and adherence.
自我呈现关注，被证明会影响与运动相关的认知和行为，经常在没有运动或单次体育活动后进行评估。本研究的目的是从纵向角度探讨参与结构化的 12 周心血管运动干预是否会引起自我呈现效能期望（SPEE）和社交身体焦虑（SPA）的变化。参与者是 80 名久坐不动的超重或肥胖女性（平均体重指数为 29.02kg/m²，标准差为 4.71），年龄在 19 至 45 岁之间，希望开始运动计划（平均年龄为 33.4 岁，标准差为 7.6）。每位参与者在开始研究之前以及在第 6 周和第 12 周时都完成了自我呈现效能量表（SPES）和社交身体焦虑量表（SPAS）。对于那些完成了计划的人，重复测量方差分析表明，SPEE 在基线和第 6 周之间（P<0.001，η²=0.37）以及第 6 周到第 12 周之间（P<0.05，η²=0.10）显著增加，而 SPA 在基线和第 6 周之间显著降低（P<0.01，η²=0.16）。双变量相关分析表明，参与研究的时间长度与 SPEE 呈正相关，与 SPA 呈负相关。本文讨论了在体育活动干预中关注这些变量对运动行为、计划发展和坚持的影响。
