体育课不同持续性运动时间和强度对初中生体成分的影响

发布时间：2019-01-12 09:58

【摘要】：目的探究体育课不同运动强度和持续性运动时间对初中生体成分的影响,为初中生体育课有效运动负荷的安排提供参考依据。方法上海市某中学共6个班级226名学生参与实验干预。在3×40 min/周、共8周的体育课中,各班级分别嵌入15,10或5 min的大强度或中等强度持续性运动。结果学生体质量指数(BMI)和腰臀比(WHR)呈现不同的变化幅度,前后测和班级间差异均无统计学意义。在体脂肪量(SFV)上,实验6班学生前后测差异有统计学意义(P=0.01);在去脂体重(FFM)上,实验2班、3班、4班、5班和6班学生前后测差异均有统计学意义;在体脂肪率(PBF)和去脂体重百分比(PFFM)上,各班级学生间差异无统计学意义,但呈现出不同的变化幅度;在肌肉量(LMM)上,实验2班、4班、5班和6班学生前后测差异均有统计学意义(P值均0.05);在肌肉量百分比(PLMM)上,实验1班、4班和6班学生前后测差异均有统计学意义(P值均0.05)。结论体育课10 min以上持续性大强度运动和15 min持续性中等强度运动可以提高学生PFFM,降低学生PBF;体育课5 min以上持续性大强度运动和15 min持续性中等强度运动可以提高学生PLMM。
[Abstract]:Objective to explore the effects of different sports intensity and duration of physical education on the physical composition of junior high school students, and to provide reference basis for the arrangement of effective sports load in physical education class of junior high school students. Methods 226 students from 6 classes in a middle school in Shanghai participated in the experiment. In 3 脳 40 min/ weeks, 8 weeks physical education class, each class embedded 1510 or 5 min of high intensity or moderate intensity of persistent exercise. Results the body mass index (BMI) and the waist-hip ratio (WHR) of the students showed different ranges, but there was no significant difference between the two groups before and after the test. There were significant differences in body fat volume (SFV) before and after experiment 6 (P0. 01), and there were significant differences between experimental class 2, class 3, class 4, class 5 and class 6 before and after (FFM). There was no significant difference in body fat rate (PBF) and percentage of fat-free body weight (PFFM) among students in each class, but there was a different range of changes in body fat rate (PBF) and fat-free weight percentage (PFFM). In (LMM), there were significant differences between the students in class 2, class 4, class 5 and class 6 before and after the test (P < 0. 05). There were significant differences in the percentage of muscle mass (PLMM) between class 1, class 4 and class 6 (P < 0. 05). Conclusion continuous high intensity exercise for more than 10 min and sustained moderate intensity exercise for 15 min in physical education class can improve the PFFM, of students and reduce the PBF; of students. Continuous high intensity sports and 15 min sustained moderate intensity exercises above 5 min in physical education class can improve the PLMM. of students.
【作者单位】：上海师范大学体育学院;华东师范大学体育与健康学院"青少年健康评价与运动干预"教育部重点实验室;
【基金】：国家社会科学基金青年项目(15CTY013) 上海师范大学人文社会科学项目(A-0230-16-001010)
【分类号】：G633.96

【参考文献】