久坐行为的特征解析与认知重构
2021-08-26郭强汪晓赞
郭强 汪晓赞
摘 要:探讨久坐行为的特征规律与公共健康意义,明确久坐行为、屏幕时间、静止时间、身体活动不足等核心概念及其亚群概念在不同语境中的现实意义,并针对久坐行为、身体活动、非锻炼性身体活动、促进健康的身体活动等不同判别标准重新解构久坐行为与身体活动的辩证关系。研究认为,久坐行为与低强度身体活动的临界转换以及打破久坐行为的连续性是久坐行为最主要的现实课题,而实施跨学科健康教育、建立公共信息环境、发展多元测评工具、探索生理生化机制是今后久坐行为研究的发展趋向。
关 键 词:久坐行为;身体活动;能量消耗;慢性疾病;公共健康
中图分类号:G804.62 文献标志码:A 文章编号:1006-7116(2021)04-0137-08
Abstract: This study discussed the characteristics and regularity of sedentary behavior and its public health meanings, identified some core concepts of sedentary behavior, screen time, static time, and the shortage of physical activity and its sub-groups concepts different meanings in various context, and according to different identification standard of sedentary behavior, physical activity, non-exercise physical activity, and physical activity to promote health, reconstructed the dialectical relation between sedentary behavior and physical activity. The results showed that the realistic themes for sedentary behavior are that the critical transmission between sedentary behavior and the low-intensity physical activity, and the breakup of continuity with sedentary behavior, and its future development tendency may be to implement cross-discipline health education, building public information settings, developing multi-dimensional measurement tools, exploring physiological and biochemical mechanism.
Key words: sedentary behavior;physical activity;energy expenditure;chronic disease;public health
国际知名医学杂志《柳叶刀》在其“身体活动行为”专刊中,专门使用了“Pandemic”一词来形容身体活动不足的全球大流行[1]。Guthold等[2]基于全球190万人的数据分析也揭示了发达国家和发展中国家同时存在身体活动不足的公共健康问题。当前,以加速度计为代表的运动传感器技术的成熟和应用的不断普及,推动了久坐行为研究走进更多人的视野。但是,久坐行为之于健康风险的剂量效应、建议标准以及与身体活动的辩证关系,这些在学界尚未达成共识。因此,本研究尝试解读和剖析久坐行为的概念认知、时空维度、人群特征、发展趋向及其在公共健康中的作用和影响。
1 久坐行为的概念辨析
“久坐”“静坐”“屏幕时间”“身体活动不足”等词汇经常见诸报端甚至是学术刊物,但实际上都混为一谈。……
