肌肉氧和,激活和力量在游泳台上的相互作用
Vittorio Coloretti1, Claudio Quagliarotti2, Giorgio Gatta1
1Department for Life Quality Studies, University of Bologna, 40126 Bologna, Italy.
Sensors (Basel, Switzerland)
|July 12, 2025
概括
这项研究结合了在游泳运动期间的肌肉氧和度 (SmO2) 和电肌图 (sEMG). 这两种测量都随机械功率的增加而增加,但只有sEMG检测到肌肉疲劳.
科学领域:
- 运动生理学 运动生理学
- 生物医学工程 生物医学工程
- 运动科学 运动科学 运动科学
背景情况:
- 在运动期间评估肌肉活动通常涉及氧度测定局部氧和度 (SmO2) 和表面电肌图 (sEMG) 电气激活.
- 在特定的游泳练习中将SmO2和sEMG分析与机械功率输出相结合,此前尚未进行评估.
研究的目的:
- 在增量游泳板测试期间评估肌肉活动,使用氧计和sEMG.
- 为了研究机械功率输出,SmO2和sEMG信号在游泳运动期间三腕中的关系.
主要方法:
- 九名男子游泳者在游泳台上进行了五步增量测试.
- 氧计和sEMG传感器被应用到每个游泳者的三腕.
- 肌肉氧和度 (SmO2) 和sEMG信号在整个测试过程中被记录下来,与机械输出功率一起.
主要成果:
- 机械输出功率,冲击频率,SmO2和sEMG振幅随着增量测试的每个步骤显著增加.
- 在机械功率和SmO2,机械功率和sEMG,以及SmO2和sEMG振幅之间观察到强烈的相关性.
- sEMG检测到肌肉疲劳的电气表现,而SmO2与疲劳指标没有显著的相关性.
结论:
- 氧计和sEMG都能有效地检测肌肉努力和活动的变化,以应对游泳运动期间增加机械功率的变化.
- 与氧计相比,sEMG在动态炼条件下检测外围肌肉疲劳表现方面似乎更敏感.
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