年代型与青少年女孩的身体行为之间的关联
Tatiana Plekhanova1,2, Emily Crawley1, Melanie J Davies1,2
1Diabetes Research Centre, University of Leicester, Leicester LE5 4PW, UK.
Children (Basel, Switzerland)
|May 27, 2023
概括
与晚上时代型相比,早晨时代型的青少年女孩在周日的运动行为较少,体力活动较多. 这突出了体育活动干预措施的潜在目标.
科学领域:
- 时间生物学 时间生物学
- 青少年健康 青少年健康
- 身体活动流行病学
背景情况:
- 时刻型,一个人对特定的睡眠和清醒时间的自然倾向,影响日常行为.
- 了解时间型在青少年身体活动中的作用对于公共卫生倡议至关重要.
- 以前的研究还没有完全阐明青春期女孩的时间型和详细的身体行为之间的关系.
研究的目的:
- 通过加速度计测量,在青少年女孩的不同时刻型中描述身体行为.
- 调查时间型与各种身体行为之间的关联,包括久坐时间和身体活动水平.
- 为了识别在平日和周末的身体行为中可能存在的时间型特异性差异.
主要方法:
- 一组965名青少年女孩 (平均年龄13.9岁) 参与了这项研究.
- 时代型被评估使用单个问题测量.
- 在24小时内,使用GENEActiv加速计在非主导手腕上佩戴的物理行为被客观地测量.
- 线性混合效应模型被用来分析时间型和物理行为之间的关系.
主要成果:
- 70%的参与者被认定为晚上年代型.
- 与周日的晚上时代型相比,早晨的时代型表现出明显较少的静坐时间 (10分钟/天).
- 早晨的时间型也显示在平日的整体体力活动水平较高 (约相当于30分钟的慢步行).
- 对于大多数参与者来说,一天中的很大一部分时间,特别是晚上的时间类型,是静坐的,只有有限的时间用于体力活动.
结论:
- 在这个青春期女孩队伍中普遍存在的晚上时光类型与平日的较长的久坐时间和较低的体力活动有关.
- 这些发现表明,时间型可能是影响青少年女孩体育活动模式的重要因素.
- 旨在促进青少年女孩体育活动的干预计划应该考虑时型作为潜在的修改因素.
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