成分等时替代模型分析大学生24 h活动行为与自测健康的关联  

Compositional isochronous substitution model to analyse the association between 24-h movement behaviour and self-measurement health for university students

作　　者：李凯欣 赵越 肖绛 彭俊歌 李晏[3] LI Kaixin;ZHAO Yue;XIAO Jiang;PENG Junge;LI Yan(School of Physical Education,Zhengzhou University,Zhengzhou 450001,China;School of Public Health,Zhengzhou University,Zhengzhou 450001,China;School of Physical Education,The Second Affiliated Hospital of Zhengzhou University,Zhengzhou 450001,China)

机构地区：[1]郑州大学体育学院(校本部),河南郑州450001 [2]郑州大学公共卫生学院,河南郑州450001 [3]郑州大学第二临床医学院体育学院(校本部),河南郑州450001

出　　处：《体育学刊》2025年第2期139-146,共8页Journal of Physical Education

基　　金：河南省哲学社会科学规划年度项目(2022BTY017);河南省引进国外智力专项(HNGD2024001);郑州大学研究生创新创业项目(20240343)。

摘　　要：对河南省某高校1406名18~24岁大学生开展横断面调查,通过国际体力活动问卷与匹兹堡睡眠指数量表进行24h活动行为调查,采用自测健康评定量表评估健康水平,运用成分分析和等时替代模型方法分析大学生24 h活动行为与自测健康的关联及替代效应。结果显示:(1)24h活动行为与大学生自测健康各因子、维度及总分均显著相关(P<0.001),MVPA、LPA及睡眠时间占比均与大学生自测健康总分呈显著正相关(MVPA:β=3.68,P<0.05;LPA:β=1.45,P=0.05;睡眠:β=1.95,P<0.05),久坐行为时间占比与大学生自测健康总分呈显著负相关(β=-4.31,P<0.05);(2)15 min等时替代模型预测变化显示,MVPA替换其他活动行为后大学生自测健康得分均显著上升,且MVPA替代久坐行为对提高自测健康得分的效应最佳;(3)在从-40min到40min的剂量-效应关系中,其他行为替代MVPA产生的不利影响大于MVPA替代其他行为产生的益处,同时5min是健康效益变化的最佳转折点。研究认为,大学生24h活动行为的综合效应值需高度重视,尤其应关注MVPA不足和久坐时间过长对大学生整体健康的负面影响。促使久坐行为向MVPA适度转化可以有效改善大学生的健康水平,而睡眠可能是健康干预的另一重要方向。此外,每天45min的MVPA最低推荐量能够让大学生获得最高效的体质健康效益。A cross-sectional survey was conducted from April to June 2024 on 1406 college students aged 18 to 24 years in a university in Henan.24-h movement behavior was investigated by the International Physical Activity Questionnaire and the Pittsburgh Sleep Index Scale,and the self-measurement health scale was used to assess the health level of college students,and the association between the 24-h movement behavior of college students and their self-measurement health was analyzed by using the methods of constituent data and isochronous substitution modeling,as well as the substitution.The association between 24-h movement behavior and self-measurement health and the substitution effect were analyzed using component data and isochronous substitution model.The results showed that:(1)there was a significant correlation between 24-hour movement behaviors and various factors,dimensions,and the total score of self-rated health among university students(P<0.001).The proportions of time spent in MVPA,Sleep,and LPA were significantly positively correlated with the total self-rated health score(MVPA:β=3.68,P<0.05;Sleep:β=1.95,P<0.05;LPA:β=1.45,P=0.05),while the proportion of time spent in sedentary behaviour was significantly negatively correlated with the total self-rated health score(β=-4.31,P<0.05).(2)The 15-min isochronous substitution model predicted changes showing that all college students'self-tested health scores increased significantly after MVPA replacement of other movement behaviors,and that MVPA replacement of sedentary behaviour had the best effect on increasing self-tested health scores.(3)In the dose-effect relationship from-40 min to 40 min,the adverse effects of MVPA replacement by other behaviors outweighed the benefits of MVPA replacement by other behaviors;furthermore,5 min was the optimal turning point for changes in health benefits.The research suggests that the combined effects of 24-hour movement behaviors of college students deserve great attention,especially the negative impact of MVPA deficiency

关 键 词：24h活动行为 成分分析 等时替代模型 自测健康 大学生 

分 类 号：G806[文化科学—运动人体科学]