目标评级变化作为老年人自我效能感和体力活动之间的中介变量。
Change in goal ratings as a mediating variable between self-efficacy and physical activity in older men.
机构信息
Veterans Affairs Medical Center, GRECC 182, Durham, NC 27705, USA.
出版信息
Ann Behav Med. 2010 Jun;39(3):267-73. doi: 10.1007/s12160-010-9177-5.
BACKGROUND
Few studies have examined the associations between exercise self-efficacy, goals, and physical activity over time.
PURPOSE
This study examines whether self-selected goals mediate the changes in exercise self-efficacy on physical activity over 12 months.
METHODS
Data are derived from 313 older men participating in the Veterans LIFE Study.
RESULTS
Changes in exercise self-efficacy were significantly associated with changes in physical activity both directly (betas = 0.25 and 0.24, p < 0.05) and indirectly (betas = 0.24 and 0.30, p < 0.05) through changes in health-related and walking goal ratings (betas = 0.19 and 0.20, p < 0.05). Both types of goal setting continued to partially mediate the relationship between exercise self-efficacy and physical activity when covariates were added to the models.
CONCLUSION
This study extends the application of social cognitive and goal-setting theories to physical activity by showing that goals partially mediate the relationship between exercise self-efficacy and physical activity over time.
背景
很少有研究考察过运动自我效能感、目标与随时间推移的身体活动之间的关联。
目的
本研究检验了自我选择的目标是否在 12 个月内调节了运动自我效能感对身体活动的变化。
方法
数据来自参与退伍军人生活研究的 313 名老年男性。
结果
运动自我效能感的变化与身体活动的变化直接相关（β值分别为 0.25 和 0.24，p < 0.05），通过与健康相关的和步行目标的变化间接相关（β值分别为 0.24 和 0.30，p < 0.05）。当将协变量添加到模型中时，两种类型的目标设定继续部分调节运动自我效能感和身体活动之间的关系。
结论
本研究通过表明目标部分调节了运动自我效能感和身体活动随时间推移的关系，将社会认知和目标设定理论扩展到身体活动领域。
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