Cabral Tayse Guedes, Moura Ially Rayssa Dias, Farias Júnior José Cazuza de
Faculdade de Educação Física, Universidade Federal da Paraíba. Jardim Universitário s/n, Castelo Branco. 58051-900 João Pessoa PB Brasil.
Cien Saude Colet. 2021 Sep;26(9):4299-4308. doi: 10.1590/1413-81232021269.26552020. Epub 2020 Jul 31.
The scope of this paper is to analyze the association between social support, self-efficacy and practice time of physical activity of different intensity (light, moderate, vigorous) and evaluate if these associations are moderated by the nutritional status of adolescents. It involved a cross-sectional study with 650 adolescents (10-14 years old, 52.9% female) from João Pessoa, State of Paraíba. Social support was measured by a scale with five items for each source of support (father, mother and friends) and self-efficacy, with a scale of four items. The physical activity time was measured by means of an accelerometer and the nutritional status was assessed by body mass index. The results of the multiple linear regression analysis showed that social support of friends was positively and significantly associated with moderate intensity physical activity time (β=2.67; CI95%: 0.28; 5.07). The nutritional status did not moderate the association of social support and self-efficacy with the duration of physical activity (p>0.05). The conclusion drawn is that adolescents who perceived that they are receiving more social support from friends tend to practice more moderate intensity physical activity, irrespective of their nutritional status.
本文的范围是分析社会支持、自我效能感与不同强度（轻度、中度、剧烈）身体活动的练习时间之间的关联，并评估这些关联是否受到青少年营养状况的调节。该研究为横断面研究，涉及来自帕拉伊巴州若昂佩索阿的650名青少年（10 - 14岁，女性占52.9%）。社会支持通过针对每个支持来源（父亲、母亲和朋友）的一个包含五个条目的量表进行测量，自我效能感通过一个包含四个条目的量表进行测量。身体活动时间通过加速度计进行测量，营养状况通过体重指数进行评估。多元线性回归分析结果表明，朋友的社会支持与中度强度身体活动时间呈显著正相关（β = 2.67；95%置信区间：0.28；5.07）。营养状况并未调节社会支持和自我效能感与身体活动时长之间的关联（p > 0.05）。得出的结论是，无论营养状况如何，那些认为自己从朋友那里获得更多社会支持的青少年往往会进行更多的中度强度身体活动。
