Fatigue-related differences in erector spinae between prepubertal children and young adults using surface electromyographic power spectral analysis
Fatigue-related differences in erector spinae between prepubertal children and young adults using surface electromyographic power spectral analysis
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DOI：
10.3233/bmr-160705
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发表时间：
2017-01-01
影响因子：
1.6
通讯作者：
Tajima, Fumihiro
中科院分区：
文献类型：
--
作者：
Tanina, Hideaki;Nishimura, Yukihide;Tajima, Fumihiro
背景：成年女性的竖脊肌比男性更耐疲劳。然而，没有研究报告的性别差异在背部肌肉fatigue in children.OBJECTIVE：本研究的目的是评估的疲劳性竖脊肌在青春期前的儿童和成人，在男性和女性.METHODS：14青春期前的男孩，13青春期前的女孩，14名成年男子，13名成年妇女进行了索伦森背部等长耐力测试，直到耗尽。结果：在两个年龄组中，男性竖脊肌肌电功率谱中位数和平均功率频率的斜率均显著高于女性。此外，斜坡显着低于青春期前的儿童比成人，在男性和females.CONCLUSIONS：我们的研究结果显示，男孩和女孩，儿童和成人之间的竖脊肌的疲劳阈值的主要差异。青春期前男孩和成年男性的肌肉疲劳速度比青春期前女孩和成年女性快。在两种性别，较低的斜率竖脊肌的肌电图功率谱参数，注意到在耐力测试中青春期前的儿童相比，成人。
BACKGROUND: The erector spinae is more resistant to fatigue in adult women than men. However, no study has reported the sex differences in back muscle fatigue in children.OBJECTIVE: The aim of this study was to evaluate the fatigability of erector spinae in prepubertal children and adults, in both males and females.METHODS: Fourteen prepubertal boys, 13 prepubertal girls, 14 adult men, and 13 adult women performed the Sorensen back isometric endurance test until exhaustion. The results of electromyographic (EMG) power spectral analysis of erector spinae were compared between both age groups and sexes.RESULTS: The slopes of EMG power spectral median and mean power frequency were significantly higher in males than in females, in both age groups. Furthermore, the slopes were significantly lower in prepubertal children than in adults, in both males and females.CONCLUSIONS: Our results showed major differences in the fatigue threshold of the erector spinae between boys and girls and children and adults. The muscle fatigued faster in prepubertal boys and adult men than in prepubertal girls and adult women. In both sexes, a lower slope of EMG power spectrum parameters of the erector spinae was noted during endurance test in prepubertal children compared to adults.