Motl Robert W, Dishman Rod K, Saunders Ruth P, Dowda Marsha, Pate Russell R
Department of Kinesiology, University of Illinois at Urbana-Champaign, 332 Freer Hall, 906 S Goodwin Avenue, Urbana, Illinois 61801-3895, USA.
J Pediatr Psychol. 2007 Jan-Feb;32(1):6-12. doi: 10.1093/jpepsy/jsl001. Epub 2006 May 17.
This cross-sectional study examined the direct and indirect effects of perceived equipment accessibility, neighborhood safety, and social support on self-reported physical activity among older adolescent girls.
Adolescent girls (n = 1,655) who were in the 12th grade completed a battery of questionnaires that included self-report measures of the perceived physical environment, social support, barriers self-efficacy, and physical activity.
Perceived neighborhood safety did not exhibit direct or indirect effects on self-reported physical activity. Perceived equipment accessibility exhibited an indirect effect on self-reported physical activity that was accounted for by barriers self-efficacy. Perceived social support exhibited direct and indirect effects on self-reported physical activity; the indirect effect was accounted for by barriers self-efficacy. The relationships were independent of parental education and body mass index (BMI).
Perceived physical environmental factors indirectly influenced self-reported physical activity, and perceived social environmental factors both directly and indirectly influenced self-reported physical activity in this sample of older adolescent girls.
本横断面研究考察了感知到的设备可及性、邻里安全和社会支持对年长少女自我报告的身体活动的直接和间接影响。
12年级的少女（n = 1655）完成了一系列问卷，包括对感知到的物理环境、社会支持、障碍自我效能感和身体活动的自我报告测量。
感知到的邻里安全对自我报告的身体活动没有直接或间接影响。感知到的设备可及性对自我报告的身体活动有间接影响，这是由障碍自我效能感所介导的。感知到的社会支持对自我报告的身体活动有直接和间接影响；间接影响是由障碍自我效能感所介导的。这些关系独立于父母教育程度和体重指数（BMI）。
在这个年长少女样本中，感知到的物理环境因素间接影响自我报告的身体活动，感知到的社会环境因素直接和间接影响自我报告的身体活动。
