The correlates of body composition with heart rate recovery after step test: an exploratory study of Malaysian adolescents.
The correlates of body composition with heart rate recovery after step test: an exploratory study of Malaysian adolescents.
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DOI：
10.1371/journal.pone.0082893
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发表时间：
2013
期刊：
影响因子：
3.7
通讯作者：
Su TT
中科院分区：
文献类型：
--
作者：
Abu Hanifah R;Mohamed MN;Jaafar Z;Mohsein NA;Jalaludin MY;Majid HA;Murray L;Cantwell M;Su TT
在成人中，心率恢复是死亡率的预测因子，而在青少年中，它与心脏代谢危险因素有关。本研究的目的是探讨马来西亚中学生台阶试验后身体成分指标与心率恢复（HRR）之间的关系。在马来西亚健康和青少年纵向研究小组（MyHEART）的研究中，1071名13岁的健康中学生参加了台阶测试。身体成分测量的参数是身体质量指数z评分、体脂百分比、腰围和腰高比。通过使用改进的哈佛台阶试验进行台阶试验。分别通过运动期间的峰值脉率与1和2分钟时的静息脉率之间的差异计算1分钟心率恢复（HRR 1 min）和2分钟心率恢复（HRR 2 min）。根据性别单独进行分析。Pearson相关分析用于确定HRR参数与身体成分测量之间的关联，而多元回归分析用于确定哪些身体成分测量是HRR的最强预测因子。对于两个性别组，所有的身体成分指标与HRR 1 min呈负相关。在女孩中，所有的身体成分的措施与HRR 2 min呈负相关，而在男孩中，所有的身体成分的措施，除了BMI的Z-评分，与HRR 2 min。在多元回归中，只有腰围与男孩的HRR 2 min呈负相关（p=0.024），而在女孩中，HRR 2 min与体脂百分比呈负相关（p=0.008）。在表面健康的青少年中，身体成分测量值与HRR呈负相关。因此，识别青少年的心脏代谢危险因素对于早期预防随后的成年期发病是重要的。这重申了健康生活的重要性，应该从年轻开始。
In adults, heart rate recovery is a predictor of mortality, while in adolescents it is associated with cardio-metabolic risk factors. The aim of this study was to examine the relationship between body composition measures and heart rate recovery (HRR) after step test in Malaysian secondary school students. In the Malaysian Health and Adolescents Longitudinal Research Team (MyHEART) study, 1071 healthy secondary school students, aged 13 years old, participated in the step test. Parameters for body composition measures were body mass index z-score, body fat percentage, waist circumference, and waist height ratio. The step test was conducted by using a modified Harvard step test. Heart rate recovery of 1 minute (HRR1min) and heart rate recovery of 2 minutes (HRR2min) were calculated by the difference between the peak pulse rate during exercise and the resting pulse rate at 1 and 2 minutes, respectively. Analysis was done separately based on gender. Pearson correlation analysis was used to determine the association between the HRR parameters with body composition measures, while multiple regression analysis was used to determine which body composition measures was the strongest predictor for HRR. For both gender groups, all body composition measures were inversely correlated with HRR1min. In girls, all body composition measures were inversely correlated with HRR2min, while in boys all body composition measures, except BMI z-score, were associated with HRR2min. In multiple regression, only waist circumference was inversely associated with HRR2min (p=0.024) in boys, while in girls it was body fat percentage for HRR2min (p=0.008). There was an inverse association between body composition measurements and HRR among apparently healthy adolescents. Therefore, it is important to identify cardio-metabolic risk factors in adolescent as an early prevention of consequent adulthood morbidity. This reiterates the importance of healthy living which should start from young.
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