Plow Matthew A, Mathiowetz Virgil, Resnik Linda
Department of Community Health, Center for Gerontology and Health Care Research, Brown University, 2 Stimson Avenue, Providence, RI 02912, USA.
Am J Health Behav. 2008 Nov-Dec;32(6):614-26. doi: 10.5555/ajhb.2008.32.6.614.
To determine the impact of physical activity (PA) interventions and experience with PA on psychosocial constructs.
PA, self-efficacy, self-identity, social support, and expected PA frequency were measured pre and post intervention in 39 persons with multiple sclerosis.
The MANOVA analysis indicated that self-efficacy and expectation decreased, whereas self-identity and PA improved (P<0.05). Regressions analyses indicated pretest self-identity (beta(2)=0.44) and social support (beta(2)=0.34) were associated with PA. Posttest self-efficacy (beta(2)=0.38) and social support (beta(2)=0.31) were associated with PA (P<0.05).
The interventions and experience with PA caused changes in psychosocial constructs, which subsequently affected the correlation of these constructs with PA.
确定体育活动（PA）干预措施以及PA经历对心理社会结构的影响。
对39名多发性硬化症患者在干预前后测量PA、自我效能感、自我认同、社会支持以及预期的PA频率。
多变量方差分析表明自我效能感和预期降低，而自我认同和PA得到改善（P<0.05）。回归分析表明，干预前的自我认同（β(2)=0.44）和社会支持（β(2)=0.34）与PA相关。干预后的自我效能感（β(2)=0.38）和社会支持（β(2)=0.31）与PA相关（P<0.05）。
PA干预措施和PA经历导致心理社会结构发生变化，进而影响这些结构与PA之间的相关性。
