Pennington Biomedical Research Center, Baton Rouge, Louisiana.
Pennington Biomedical Research Center, Baton Rouge, Louisiana.
J Adolesc Health. 2020 Jun;66(6):733-739. doi: 10.1016/j.jadohealth.2019.12.011. Epub 2020 Jan 25.
The aim of the study was to assess the associations of meeting physical activity (PA), sleep, and dietary guidelines with cardiometabolic risk factors and adiposity in adolescents.
The sample included adolescents aged 10-16 years. Accelerometry was used to measure PA and sleep over 7 days, 24 h/d. The PA guideline was defined as ≥60 min/d of moderate-to-vigorous PA. The sleep guideline was 9-11 hours (10-13 years) or 8-10 hours (14-16 years) per night. The dietary guideline was based on the Healthy Eating Index calculated from dietary recalls. Cardiometabolic risk factors and adiposity were assessed in an in-patient setting. Linear regression was used to examine the association between meeting each guideline and cardiometabolic risk factors/adiposity, adjusted for confounders and meeting other guidelines.
Of the 342 participants, 251 (73%) provided complete measurements. Adolescents were 12.5 ± 1.9 years (African American [37%] and white [57%], girls [54%], and overweight or obesity [48%]). Half met the sleep guideline (52%), few met the PA guideline (11%), and the top quintile was preselected as meeting the diet guideline (20%). Most met one (47%) or no guidelines (35%), and few met multiple guidelines (18%). Meeting the PA guideline was associated with lower cardiometabolic risk factors and adiposity (p < .05 for all). Compared with meeting no guidelines, those who met multiple guidelines had lower cardiometabolic risk factors and adiposity (p < .05 for all).
Few met the PA or multiple guidelines, and those not meeting guidelines were associated with adverse cardiometabolic factors and adiposity. Multidisciplinary strategies for improving multiple behaviors are needed to improve adolescent health.
本研究旨在评估青少年的体力活动（PA）、睡眠和饮食指南与心血管代谢风险因素和肥胖的关联。
本研究的样本包括 10-16 岁的青少年。使用加速度计在 7 天内、每天 24 小时监测 PA 和睡眠。PA 指南定义为每天进行≥60 分钟的中等到剧烈强度的 PA。睡眠指南为 9-11 小时（10-13 岁）或 8-10 小时（14-16 岁）。饮食指南基于膳食回顾计算的健康饮食指数。在住院期间评估心血管代谢风险因素和肥胖。使用线性回归分析调整混杂因素和其他指南的情况下，评估符合每个指南与心血管代谢风险因素/肥胖的关系。
在 342 名参与者中，有 251 名（73%）提供了完整的测量值。青少年的年龄为 12.5±1.9 岁（37%为非裔美国人，57%为白人，54%为女孩，48%为超重或肥胖）。有一半的人符合睡眠指南（52%），很少有人符合 PA 指南（11%），而最高五分位数则预先选择为符合饮食指南（20%）。大多数人符合一项（47%）或不符合任何指南（35%），很少有人符合多项指南（18%）。符合 PA 指南与较低的心血管代谢风险因素和肥胖有关（所有 P 值均<0.05）。与不符合任何指南相比，符合多项指南的人具有较低的心血管代谢风险因素和肥胖（所有 P 值均<0.05）。
很少有人符合 PA 或多项指南，不符合指南的人则与不良心血管代谢因素和肥胖有关。需要采取多学科策略来改善多种行为，以提高青少年的健康水平。
