期刊：
Frontiers in Public Health,2024年12:1288262 ISSN：2296-2565
通讯作者：
Yin, L
作者机构：
[Li, Fang; Luo, Wanhong] Hunan First Normal Univ, Sch Phys Educ, Changsha, Peoples R China.;[Yin, Long; Yin, L] Hunan Normal Univ, Coll Phys Educ, Changsha, Peoples R China.;[Gao, Zan] Univ Tennessee, Dept Kinesiol Recreat & Sport Studies, Knoxville, TN USA.;[Ryu, Suryeon] Univ Minnesota Twin Cities, Sch Kinesiol, Minneapolis, MN USA.;[Sun, Mingyun] Hengyang Normal Univ, Sch Math & Stat, Hengyang, Peoples R China.
通讯机构：
[Yin, L ] H;Hunan Normal Univ, Coll Phys Educ, Changsha, Peoples R China.
关键词：
24-h movement behavior;isotemporal substitution;mental health;non-screen-based sedentary behavior;screen-based sedentary behavior
摘要：
The 24-h movement behavior of preschoolers comprises a spectrum of activities, including moderate-to-vigorous intensity physical activity (MVPA), light-intensity physical activity (LPA), screen-based sedentary behavior (SCSB), non-screen-based sedentary behavior (NSCSB), and sleep. While previous research has shed light on the link between movement behaviors and children's mental health, the specific impacts on the unique demographic of Chinese preschoolers remain underexplored. This study significantly contributes to the literature by exploring how 24-h movement behavior affects the mental health of preschoolers in a Chinese context. The study involved205 Chinese preschool children (117 boys and 88 girls) between the ages of 3 and 6 years wore accelerometers to measure their LPA, MVPA, and sedentary behavior (SB), while their parents reported the time spent on sleep and SCSB. The parents also completed the Strength and Difficulties Questionnaire to assess their children's mental health. The study used compositional regression and isotemporal substitution models to examine the relationship between the various components of 24-h movement behavior and mental health. The results showed that greater NCSSB compared to MVPA, LPA, sleep, and SCSB was associated with good prosocial behavior and lower scores on externalizing problems. This highlights the potential of NSCSB as a beneficial component in the daily routine of preschoolers for fostering mental well-being. Replacing 15 min of sleep and SCSB with 15 min of NSCSB was associated with a decrease of 0.24 and 0.15 units, respectively, in externalizing problems. Reallocating 15 min of sleep to NSCSB was linked to an increase of 0.11 units in prosocial behavior. There were no significant substitution effects between LPA and MVPA time with any other movement behavior on prosocial behavior and externalizing problems. Given the positive associations observed, further longitudinal studies are necessary to explore the link between 24-h movement behavior and mental health in preschool children.
期刊：
FRONTIERS IN PEDIATRICS,2024年12:1337158 ISSN：2296-2360
通讯作者：
Li, F;Liu, P
作者机构：
[Yin, Long] Hunan Normal Univ, Coll Phys Educ, Changsha, Peoples R China.;[Li, Fang; Li, F] Hunan First Normal Univ, Sch Phys Educ, Changsha, Peoples R China.;[Liu, Pan] Hunan Univ Technol, Sch Phys Educ, Zhuzhou, Peoples R China.;[Yin, Zhiqiang] Hengyang First High Sch, English Course Grp, Hengyang, Peoples R China.;[Yang, Zongyu] Guangxi Univ Nationalities, Sch Phys Educ & Hlth Sci, Nanning, Peoples R China.
通讯机构：
[Li, F ; Liu, P ] H;Hunan First Normal Univ, Sch Phys Educ, Changsha, Peoples R China.;Hunan Univ Technol, Sch Phys Educ, Zhuzhou, Peoples R China.
摘要：
BACKGROUND: Limited research has explored the relationship between adhering to 24-h Movement Behaviour guidelines and mental health in Chinese preschool children. The objectives of this study encompassed two primary goals: (1) to investigate the adherence of preschool children in China to the 24-h Movement Behaviour guidelines; and (2) to analyze the relationship between fulfilling various combinations of these guidelines and mental health, identifying the most advantageous combination. METHODS: Utilizing a convenience sampling approach, this study included 205 preschool children (117 boys and 88 girls, average age 4.8 ± 0.51 years) from five kindergartens in Hengyang, Hunan Province. The physical activity (PA) and sedentary behaviour of preschool children were objectively assessed using waist-worn accelerometers, while sleep duration and screen time were reported by the children's parents. To evaluate mental health, the parent version of the internationally validated Strength and Difficulties Questionnaire (SDQ) was employed, which measures externalizing problems, internalizing problems, and prosocial behaviour. Employing Mplus 8.0 for Structural Equation Modeling analysis, while controlling for demographic variables, the study explored the connection between preschool children's mental health and their adherence to the 24-h Movement Behaviour guidelines. RESULTS: Worryingly, merely 14.6% of preschoolers met the recommended guidelines for all three aspects (PA, sleep duration, and screen time). Positive correlations were identified between meeting PA guidelines and displaying prosocial behaviour (β = 0.184; p < 0.05), while screen time adherence exhibited a negative correlation with externalizing problems (β = -0.207; p < 0.05). Similarly, there was a negative association between sleep duration adherence and externalizing problems (β = -0.191; p < 0.05). Meeting all three recommended guidelines was notably linked to enhanced prosocial behaviour (β = 0.464; p < 0.05), while following the screen time and sleep duration guidelines was negatively associated with externalizing problems (β = -0.246; p < 0.05). CONCLUSION: This study underscores the limited adherence of Chinese preschoolers to the comprehensive 24-h Movement Behaviour guidelines. Noteworthy findings include the positive influence of PA on prosocial behaviour, alongside the significant roles that sleep duration and screen time play in mitigating externalizing problems within this age group. Alignment with the 24-h Movement Behaviour guidelines is associated with more favorable mental health indicators in preschoolers.
摘要：
目的 应用成分数据分析方法研究幼儿24 h活动行为（24-hour Movement Behavior）与基本动作技能（Fundamental Movement Skills,FMS）之间的关联，以及各活动行为间等时替代后幼儿FMS的预期变化。方法 采用ActiGraph wGT3-BT加速度计测量323名3～6岁幼儿（男童181名，女童142名）的身体活动（Physical Activity,PA)、静态行为（Sedentary Behaviour,SB)数据，采用美国大肌肉动作发展测试第3版工具（Test of Gross Motor Development,TGMD-3）测量FMS，睡眠时间由父母报告，成分数据的描述性统计分析、多元线性模型和等时替代均采用R软件完成。结果 (1)幼儿24 h活动时间分布与动作发展关联紧密，中高强度身体活动（Moderate-to-Vigorous Physical Activity,MVPA）在成分之间分布相对稳定，与低强度身体活动（Light Physical Activity,LPA）转换的可能性更大；(2)幼儿MVPA对移动技能和总动作技能（Total Motor Skill, Total MS）的影响最大，MVPA等时替代其他行为均具有积极效益，其中替换LPA效果最为明显，其他行为等时替代MVPA预示着更低的动作能力，而且预测具有不对称性。结论 虽然MVPA对幼儿动作发展影响最大，但更需要从整体视角平衡24 h活动行为对动作发展的影响；在幼儿园、家庭和社区环境中，强调将幼儿的LPA转换为MVPA，以更好地促进其FMS发展。
期刊：
Journal of Clinical Medicine,2022年11(19):5623- ISSN：2077-0383
通讯作者：
Long Yin
作者机构：
[Yin, Long; Li, Fang] Hengyang Normal Univ, Sch Phys Educ, Hengyang 421002, Peoples R China.;[Sun, Mingyun] Hengyang Normal Univ, Sch Math & Stat, Hengyang 421002, Peoples R China.;[Gao, Zan] Univ Minnesota Twin Cities, Sch Kinesiol, Minneapolis, MN 55455 USA.
通讯机构：
[Long Yin] S;School of Physical Education, Hengyang Normal University, Hengyang 421002, China<&wdkj&>Author to whom correspondence should be addressed.
关键词：
locomotor skills;object control skills;physical activity;sleep duration;screen time
摘要：
Background: Few studies have investigated associations between meeting 24-Hour Movement Guidelines and preschool children's fundamental movement skills (FMS). This study aimed to investigate the associations between Chinese preschoolers meeting various combinations of the Guidelines and FMS, as well as examining gender differences across those outcomes. Methods: A total of 322 preschool children (181 boys and 141 girls) aged 3-6 years old were recruited from five early-childhood education and care services in China. Children's 7-day physical activity (PA) was assessed using accelerometry, and screen time (ST) and sleep duration were reported by their parents. FMS were assessed by Test of Gross Motor Development 3. Descriptive statistics and gender differences in children's meeting the Guidelines and FMS were calculated using t-tests for continuous variables and Chi-square tests for categorical variables. Results: Most preschoolers met the sleep and ST guidelines, but only 22.3% met the PA guidelines; 4% of preschoolers did not meet any of the recommendations, while 9.3% met all three recommendations. Boys reported significantly higher compliance with all combined recommendations. There were positive associations between meeting the PA guidelines and both locomotor (beta = 0.49; p < 0.001) and object control skills (beta = 0.21; p < 0.001). A significantly positive relationship was identified between meeting PA + sleep guidelines and locomotor skills (beta = -0.16; p = 0.02). A significantly negative association was observed between preschoolers' meeting sleep + ST guidelines and locomotor skills (beta = 0.31; p = 0.001). Conclusion: Few preschoolers met all three movement behavior guidelines. The findings suggest that PA levels, especially MVPA, are important for the promotion of FMS. Meanwhile, the impacts of ST and sleep on motor development cannot be neglected.
