Bailey Caitlin P, DiPietro Loretta, Hayman Laura L, Ahmad Zohaa, Napolitano Melissa A
Department of Prevention and Community Health, The George Washington University Milken Institute School of Public Health, Washington, DC, USA.
Department of Exercise and Nutrition Sciences, The George Washington University Milken Institute School of Public Health, Washington, DC, USA.
Am J Lifestyle Med. 2022 May 24;19(2):298-306. doi: 10.1177/15598276221090190. eCollection 2025 Feb.
Approximately 40% of college/university students have overweight/obesity; physical activity and sleep play a role. To address these interrelated behaviors, Canada recently released 24-Hour Movement Guidelines. This study aimed to determine (1) the percent of students with overweight/obesity meeting Canadian 24-Hour Movement Guidelines, (2) whether health behaviors differ by demographics, and (3) whether meeting guidelines is associated with BMI.
University students 18-35 years (n = 459) enrolled in a randomized controlled weight management trial completed 1 week of ActiGraph measured activity, self-reported sleep duration, researcher-measured height/weight, and demographics at baseline. ANOVA and t-tests determined differences in student demographics and BMI among those meeting vs not meeting each guideline.
Of the analytic sample (n = 403), 341 (84.6%) met the MVPA guideline, 284 (70.5%) met the LIPA guideline, 236 (58.6%) met the sleep guideline, 62 (15.4%) met the sedentary time guideline, and 34 (8.4%) met all guidelines. Students meeting MVPA (30.8±4.3 vs 32.5±4.5, = .008) or sleep (30.7±4.4 vs 31.6±4.3, = .04) guidelines had significantly lower BMIs compared to those not meeting each guideline. Percent of students meeting sleep ( = .039) or all guidelines ( = .012) differed by race/ethnicity.
Meeting MVPA/sleep guidelines is associated with lower BMI; these behaviors are important targets for future weight management programs.
约40%的大学生超重/肥胖,身体活动和睡眠起了一定作用。为解决这些相互关联的行为问题,加拿大最近发布了《24小时运动指南》。本研究旨在确定:(1)超重/肥胖学生中符合加拿大《24小时运动指南》的比例;(2)健康行为是否因人口统计学特征而异;(3)符合指南与体重指数(BMI)是否相关。
年龄在18 - 35岁的大学生(n = 459)参加了一项随机对照体重管理试验,在基线时完成了1周的ActiGraph测量活动、自我报告的睡眠时间、研究人员测量的身高/体重以及人口统计学特征。方差分析和t检验确定了符合与不符合各指南的学生在人口统计学特征和BMI方面的差异。
在分析样本(n = 403)中,341人(84.6%)符合中等至剧烈身体活动(MVPA)指南,284人(70.5%)符合低强度身体活动(LIPA)指南,236人(58.6%)符合睡眠指南,62人(15.4%)符合久坐时间指南,34人(8.4%)符合所有指南。与不符合MVPA指南(30.8±4.3 vs 32.5±4.5,P = .008)或睡眠指南(30.7±4.4 vs 31.6±4.3,P = .04)的学生相比,符合这些指南的学生BMI显著更低。符合睡眠指南(P = .039)或所有指南(P = .012)的学生比例因种族/族裔而异。
符合MVPA/睡眠指南与较低的BMI相关;这些行为是未来体重管理计划的重要目标。