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目前,体力活动或久坐行为对青少年心血管健康的长期影响尚不清楚。本研究采用叙事研究范式综述关于“健康青年中肥胖与其他心血管疾病生物学风险因素的关系”的前瞻性研究,所纳入研究的随访时间均超过2年。这些研究表明身体活动对肥胖,特别是对心血管健康指标有长期的有益影响,但其中少数研究提出较高水平的身体活动与较严重的肥胖相关。此外,在不考虑体力活动的情况下,久坐时间与肥胖和心血管健康指标并不相关。本文还讨论了隐含其中因果链的不确定性,并提出一些替代性建模策略,以提升未来研究中对这一关系的认识。本文最后探讨了现有评价体力活动及久坐时间的测量方法。
The long-term effects of physical activity or sedentary behavior on adolescent cardiovascular health are not yet clear. This study uses a narrative paradigm review on a prospective study of the relationship between obesity and other cardiovascular risk factors in healthy youth, with a follow-up of over 2 years. These studies show that physical activity has long-term beneficial effects on obesity, especially cardiovascular health indicators, but a few of them suggest that higher levels of physical activity are associated with more severe obesity. In addition, sedentary time is not associated with obesity and cardiovascular fitness without physical activity. This article also discusses the uncertainty implicit in the causal chain, and proposes some alternative modeling strategies to enhance the understanding of this relationship in future research. Finally, this article explores the existing methods for measuring physical activity and sedentary time.