青少年握力与血压的相关性研究

目的  应用2014年辽宁省学生体质与健康调研资料分析青少年握力与血压的相关性。 方法  本研究选取16 892例13~18岁汉族初、高中学生为研究对象。握力的测量为用有力手最大力紧握握力计, 测试2次取最大值。采用一般线性回归模型分析握力与血压的关系。将相关变量按照年龄、性别Z评分转换后进行分析。 结果  调节年龄、性别、地区、体重指数(body mass index, BMI)、每天体育锻炼时间和心肺功能后, 在男生及女生中, 握力与收缩压及舒张压均呈正相关(均有P < 0.001)。将握力四分位分组, 随着握力的增加, 收缩压及舒张压值均逐渐增大(均有P_趋势 < 0.001)。 结论  青少年肌肉力量与血压之间呈正相关关系。今后将探索青少年握力与血压相关性的机制, 以进一步确定增加肌肉力量的抗阻训练是否可以在青少年中广泛开展。

The association between handgrip strength and blood pressure among adolescents

  Objective  To examine the association between handgrip strength and blood pressure(BP) in adolescents using the data obtained from survey on the constitution and health of students in Liaoning province in 2014.  Methods  A total of 16 892 Chinese Han junior and senior high school students aged 13-18 years were included in this study. Participants gripped the dynamometer with their dominant hand for twice, and the maximum value was recorded. General linear regression models were used to analyze the associations between handgrip strength and BP, while related variables were converted to age-and sex-specific z-scores.  Results  After adjustment for age, sex, region, body mass index, physical activities, and cardiorespiratory fitness, handgrip strength is positively associated with systolic BP and diastolic BP in both men and women(all P < 0.001).There was an increasing trend in systolic and diastolic BP as handgrip strength increased from the bottom quartile to the top quartile(all P_trend < 0.001).  Conclusions  There is a positive association between handgrip strength and BP in adolescents, the mechanisms of which will be explored to determine whether resistance training to increase muscle strength can be widely carried out among adolescents.