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目的了解中学生身体机能发育的动态变化,探讨促进中学生身体发育的方法及措施。方法按照“2010年全国学生体质健康调研工作手册”的要求,采用分层整群抽样的方法对河南省城乡63 213名中学生进行抽样调查,对心率、血压、肺活量、握力等指标进行测量,并将结果与2005年的作比较。结果 2010年河南省中学生的心率,各年龄组均较2005年有所减缓,平均减缓2.4次/min;2次调研的收缩压差异无统计学意义,舒张压较2005年各年龄组均有所降低,平均降低1.28 mm Hg;2010年各年龄组肺活量均较2005年有所下降,平均下降373.8 mL;2次握力差异均无统计学意义(P值均>0.05)。结论 2010年河南中学生的心血管机能较2005年明显增强,呼吸机能仍在下降。
Objective To understand the dynamic changes of middle school students' physical development and to explore the methods and measures to promote the physical development of middle school students. Methods According to the requirements of the “2010 National Student Health Survey Workbook”, stratified cluster sampling method was used to sample 63 213 middle school students in urban and rural areas of Henan Province to measure heart rate, blood pressure, vital capacity, grip strength and other indicators , And compare the result with that of 2005. Results In 2010, the heart rate of middle school students in Henan Province was slower than that of 2005, with an average decrease of 2.4 beats / min. There was no significant difference in systolic blood pressure between the two surveys. Diastolic blood pressure was higher than that of all age groups in 2005 Decreased by an average of 1.28 mm Hg. In 2010, the vital capacity of all age groups decreased from 2005 to 2005 with an average drop of 373.8 mL. There was no significant difference in the grip strength between the two groups (P> 0.05). Conclusion The cardiovascular function of middle school students in Henan Province in 2010 is obviously enhanced compared with that of 2005, and the respiratory function is still declining.