表面肌电贡献率测试3种姿势仰卧起坐的年龄、性别通用性

发布时间：2018-04-12 22:09

本文选题：运动生理学 + 表面肌电　；参考：《体育学刊》2017年05期

【摘要】：利用表面肌电贡献率比较了体质测试中3种不同姿势仰卧起坐(双臂胸前交叉、双手放大腿上、双臂体侧)在不同年龄和性别因素上的通用性,为科学、准确筛选出最优姿势的仰卧起坐提供理论依据。以6~14岁学生270人为测试对象,测试每个学生全身14块肌肉在完成上述力量素质测试时的肌电值,并标准化为表面肌电贡献率;对3种不同姿势的仰卧起坐所有肌肉的肌电贡献率,分别进行年龄和性别的双因素方差分析和指标间差异的比较。结果可见,双臂胸前交叉仰卧起坐年龄、性别及其交互作用显著的肌肉分别为1、7、2块,年龄效应差异显著的年龄组成对数量为男女生共计45对,性别效应差异显著的肌肉数量为9块,年龄组为5个;双手放大腿上仰卧起坐年龄、性别及其交互作用显著的肌肉分别为5、6、5块,年龄效应差异显著的年龄组成对数量为男女生共计101对,性别效应差异显著的肌肉数量为11块,年龄组为13个;双臂体侧仰卧起坐年龄、性别及其交互作用显著的肌肉分别为2、10、3块,年龄效应差异显著的年龄组成对数量为男女生共计82对,性别效应差异显著的肌肉数量为13块,年龄组为11个。结果说明6~14岁学生完成3种不同姿势仰卧起坐年龄及性别通用性当属双臂胸前交叉的仰卧起坐最高。
[Abstract]:Based on the surface electromyography contribution rate, this paper compares the generality of three different posture sit-ups (crossed arms, hands on thighs and sides of arms) in different age and gender factors in physique test.Accurate screening of the optimal posture of sit-ups provides theoretical basis.270 students aged from 6 to 14 years old were selected to test the EMG values of 14 muscles in each body and standardized as the surface electromyography contribution rate (EMG).The EMG contribution rates of all muscles in three different postures were analyzed with age and gender, and the differences among the indexes were compared.The results showed that the age, sex and interaction of the two arms in the front of chest crossover sit-up were 1 and 72, respectively. The number of age pairs with significant difference in age effect was 45 pairs of male and female students.The number of muscles with significant gender difference was 9, 5 in the age group, 5 in the age of sitting up on the thigh with both hands, and 5 in the muscles with significant gender and interaction.The age pairs with significant difference in age effect were 101 pairs of male and female students, 11 muscles with significant gender effect and 13 age groups.The number of muscles with significant sex and its interaction was 21010, the number of age pairs with significant age effect difference was 82 pairs of male and female students, the number of muscles with significant gender effect was 13, and that of age group was 11.The results showed that the age and sex generality of 6 ~ 14 year old students with different postures were the highest when the arms crossed in front of chest.
【作者单位】：华东师范大学青少年健康评价与运动干预教育部重点实验室;华东师范大学体育与健康学院;遵义医学院体育学院;
【基金】：“青少年健康评价与运动干预教育部重点实验室”建设项目(40500-541235-14203/004) 上海高校创新能力提升计划竞争性引导项目:青少年power工程协同创新中心(44891400)
【分类号】：G804.2

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