24 小时活动行为组成与学龄前儿童的副交感神经调节有关。
The 24-h movement behaviours composition is associated with parasympathetic modulation in preschoolers.
机构信息
Federal University of Paraíba, João Pessoa, Brazil.
Faculty Research Centre for Intelligent Healthcare, Coventry University, Coventry, UK.
出版信息
Child Care Health Dev. 2024 May;50(3):e13263. doi: 10.1111/cch.13263.
AIM
To investigate the associations between 24-h movement behaviours and heart rate variability (HRV) in preschool children.
METHODS
A total of 123 preschoolers (4.52 ± 0.25 years old; 62 girls) were assessed for physical activity (PA) and sedentary behaviour (SB) using an accelerometer (Actigraph WGT3x). Sleep duration (SD) was parent-reported. Children were laid down in a supine position for 10 min to assess HRV data. The R-R intervals recorded during the last 5 min of this period were analysed. We conducted compositional analysis in R studio, and the significance level was 95%. All ethical procedures were followed, and the study had the approval of the local ethical board.
RESULTS
When considered as a composition, adjusted for age, body mass index and sex, the 24-h movement composition (PA, SB and SD) significantly predicted better parasympathetic modulation (Root mean square of the successive differences [RMSSD] [p = 0.04; r = 0.13]), but not high frequency (HF) (nu) (p = 0.51, r = 0.01), low frequency (nu) (p = 0.52, r = 0.02),or standard deviation (standard deviation of normal-to-normal intervals) (p = 0.55, r = 0.02), respectively.
CONCLUSION
These results suggest the 24-h movement composition predicted the RMSSD time-domain index related to parasympathetic activity.
目的
探讨学龄前儿童 24 小时运动行为与心率变异性（HRV）之间的关系。
方法
共评估了 123 名学龄前儿童（4.52±0.25 岁；62 名女孩）的体力活动（PA）和久坐行为（SB），使用加速度计（Actigraph WGT3x）。睡眠持续时间（SD）由家长报告。让儿童仰卧 10 分钟以评估 HRV 数据。在此期间的最后 5 分钟记录的 R-R 间隔进行分析。我们在 R 工作室中进行了成分分析，显著性水平为 95%。所有伦理程序均得到遵守，该研究获得了当地伦理委员会的批准。
结果
当作为成分考虑时，调整年龄、体重指数和性别后，24 小时运动成分（PA、SB 和 SD）显著预测更好的副交感神经调节（连续差异均方根 [RMSSD] [p=0.04；r=0.13]），但不能预测高频（HF）（nu）（p=0.51，r=0.01）、低频（nu）（p=0.52，r=0.02）或标准差（正常-正常间隔的标准差）（p=0.55，r=0.02）。
结论
这些结果表明，24 小时运动成分预测了与副交感神经活动相关的 RMSSD 时域指数。
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