Bordeleau Manon, Alméras Natalie, Panahi Shirin, Drapeau Vicky
Département D'éducation Physique, Faculté des Sciences de L'éducation, Université Laval, Québec, QC G1V 0A6, Canada.
Centre de Recherche de L'institut Universitaire de Cardiologie et de Pneumologie de Québec-Université Laval, Québec, QC G1V 0A6, Canada.
Children (Basel). 2023 Jul 22;10(7):1263. doi: 10.3390/children10071263.
This secondary data analysis study aimed to examine the associations between 1) body size perception (BSP) and body size dissatisfaction (BSD) and 2) lifestyle behaviors and BSP and BSD in adolescents. The study pooled cross-sectional data from two studies ( = 301) performed in adolescents. Weight and height were measured, while lifestyle behaviors and perceived actual and desired body size variables were self-reported. Linear regression analysis assessed the contribution of sex and zBMI to BSP and BSD scores. Pearson's correlation explored associations between BSP and BSD. Cohen's effect sizes compared satisfied and dissatisfied adolescents within the underestimators subgroup. A positive association between BSP and BSD scores was observed among girls living with normal-weight and overweight/obesity only (r = 0.26; ≤ 0.001 and r = 0.38; < 0.05, respectively). Underestimators who were satisfied with their body size showed a moderate effect size for a lower zBMI, a small effect size for lower screen time, and higher sleep duration compared to dissatisfied underestimators. Underestimation was associated with more body size satisfaction in adolescent girls with normal weight and overweight/obesity, suggesting a protective effect of underestimation. These findings support the hypothesis that body size satisfaction and underestimation in adolescents is associated with healthier lifestyle behaviors.
1）青少年的体型认知（BSP）与体型不满（BSD）之间的关联；2）青少年的生活方式行为与BSP和BSD之间的关联。该研究汇总了两项针对青少年开展的研究（n = 301）的横断面数据。测量了体重和身高，而生活方式行为以及感知到的实际和期望体型变量则通过自我报告获得。线性回归分析评估了性别和zBMI对BSP和BSD得分的影响。Pearson相关性分析探究了BSP与BSD之间的关联。Cohen效应量比较了低估组中体型满意和不满意的青少年。仅在体重正常和超重/肥胖的女孩中观察到BSP与BSD得分之间存在正相关（r = 0.26；p≤0.001和r = 0.38；p<0.05）。与体型不满意的低估者相比，对自己体型满意的低估者在zBMI较低时显示出中等效应量，在屏幕使用时间较短和睡眠时间较长时显示出小效应量。在体重正常和超重/肥胖的青少年女孩中，低估与更高的体型满意度相关，表明低估具有保护作用。这些发现支持了以下假设：青少年的体型满意度和低估与更健康的生活方式行为相关。
