University at Albany (SUNY), Albany, NY, United States.
Soc Sci Med. 2010 Feb;70(4):518-25. doi: 10.1016/j.socscimed.2009.10.061. Epub 2009 Nov 26.
The purpose of the study, conducted in Pennsylvania, USA, was to assess the prospective effect of parental encouragement of physical activity (PA) for weight loss on adolescent girls' concern about weight, Body Mass Index (BMI) and objectively-measured PA. Non-Hispanic White girls (N = 177) and their parents were assessed when girls were 9, 11, 13 and 15 years old. At each age, girls' concern about their weight, pubertal development, BMI, and dietary intake were measured along with mothers' and fathers' encouragement of PA for weight loss, modeling of PA, and logistic support for PA. At ages 13 and 15 years, girls' PA was assessed using accelerometry. At age 11, girls' PA was measured using a combination of self-report measures and a standardized assessment of cardiovascular fitness. Parents of obese girls reported the highest encouragement of PA for weight loss; however, girls from all weight categories were exposed to encouragement of PA for weight loss and showed similar age-related increases in parental encouragement. Encouragement of PA for weight loss was prospectively associated with higher concern about weight and higher BMI, independent of pre-existing levels of these constructs and covariates. Encouragement of PA for weight loss was not associated with girls' objectively-measured PA. Parental encouragement of PA for weight loss was therefore not an effective strategy in this sample. Findings are consistent with research on parental child feeding practices, where parental control has been linked with unintended negative dietary and psychosocial outcomes among children.
本研究在美国宾夕法尼亚州进行，旨在评估父母鼓励青少年女孩进行体力活动（PA）以减轻体重对其体重、身体质量指数（BMI）和客观测量的 PA 的预期影响。研究纳入了 177 名非西班牙裔白人女孩及其父母，在女孩 9、11、13 和 15 岁时进行评估。在每个年龄阶段，测量女孩对体重、青春期发育、BMI 和饮食摄入的关注程度，以及母亲和父亲对 PA 的鼓励、PA 的榜样作用和对 PA 的逻辑支持。在 13 和 15 岁时，使用加速度计评估女孩的 PA。在 11 岁时，结合自我报告测量和心血管健康的标准化评估来测量女孩的 PA。肥胖女孩的父母报告对 PA 鼓励最多；然而，所有体重类别的女孩都受到鼓励 PA 以减轻体重的影响，并且表现出类似的与年龄相关的父母鼓励 PA 的增加。鼓励 PA 以减轻体重与更高的体重担忧和更高的 BMI 呈前瞻性相关，独立于这些结构和协变量的预先存在水平。鼓励 PA 以减轻体重与女孩的客观测量的 PA 无关。因此，在这个样本中，鼓励 PA 以减轻体重不是一种有效的策略。这些发现与父母喂养孩子行为的研究结果一致，其中父母的控制与孩子的不良饮食和心理社会结果有关。
