Universidade Federal do Paraná, Curitiba, PR, Brazil.
Universidade Estadual do Centro-Oeste, Guarapuava, PR, Brazil.
Rev Paul Pediatr. 2020 Jun 12;38:e2018329. doi: 10.1590/1984-0462/2020/38/2018329. eCollection 2020.
To verify the association of nutritional status, biological maturation, social support and self-efficacy with the physical activity level of 2,347 students of both sexes, aged between 11 and 15 years old, enrolled in state schools in the city of Curitiba, Paraná, Brazil.
Anthropometric measurements of body mass, height and sitting height were collected. The assessment of biological maturation was based on the analysis of the age at peak height and sexual maturity. The physical activity level, social support from parents and friends and self-efficacy were evaluated by self-reported questionnaires. Sex/age-specific body mass index (BMI) cutoff points identified the nutritional status. Gross and adjusted binary logistic regression were used to obtain odds (OR) ratios with 95% confidence intervals (95%CI), adopting p≤0.05 as significant.
More than half (52.3%; n=1,227) of students were active, with boys in a higher proportion (64.1%; p≤0.01). The correlates of physical activity were: nutritional status (OR 1.25; 95%CI 1.01-1.56), early somatic maturation (OR 0.71; 95%CI 0.54-0.93), moderate (OR 1.85; 95%CI 1.50-2.30) and high social support from parents (OR 2.70; 95%CI 2.11-3.42) and high social support from friends (OR 1.78; 95%CI 1.42-2.24).
Nutritional status, early somatic maturation, social support of parents and friends were correlates of physical activity. Overweight girls with moderate and high parental support and boys with greater social support from parents and friends were more active. Girls with early somatic maturation were less active.
验证营养状况、生物成熟度、社会支持和自我效能感与巴西巴拉那州库里提巴市公立学校 2347 名 11 至 15 岁男女学生的身体活动水平之间的关联。
收集了体重、身高和坐高的人体测量学测量值。生物成熟度的评估基于分析身高和性成熟的峰值年龄。通过自我报告问卷评估身体活动水平、来自父母和朋友的社会支持以及自我效能感。特定性别/年龄的体质指数（BMI）切点确定营养状况。采用粗比和调整后的二项逻辑回归，获得比值比（OR）和 95%置信区间（95%CI），采用 p≤0.05 为显著。
超过一半（52.3%；n=1227）的学生是活跃的，男孩的比例更高（64.1%；p≤0.01）。身体活动的相关因素是：营养状况（OR 1.25；95%CI 1.01-1.56）、早期躯体成熟（OR 0.71；95%CI 0.54-0.93）、中度（OR 1.85；95%CI 1.50-2.30）和高度来自父母的社会支持（OR 2.70；95%CI 2.11-3.42）和来自朋友的高社会支持（OR 1.78；95%CI 1.42-2.24）。
营养状况、早期躯体成熟、父母和朋友的社会支持是身体活动的相关因素。超重女孩获得中等和高度的父母支持，以及男孩获得更多来自父母和朋友的社会支持，更活跃。早期躯体成熟的女孩活动水平较低。
