超负荷和高负荷的前额坐对下肢肌肉机械性能的急性影响
Michal Krzysztofik1,2, Michal Wilk1,2, Dominik Kolinger1
1Department of Sport Games, Faculty of Physical Education and Sport, Charles University in Prague, 110 00 Prague, Czech Republic.
Sports (Basel, Switzerland)
|August 25, 2023
概括
与高负荷坐相比,超最大负荷前坐显著增加双腿骨和巨大的横振荡频率. 这项研究研究了强烈的抵抗运动后急性肌肉机械性质的变化.
科学领域:
- 生物力学 生物力学
- 运动生理学 运动生理学
- 运动科学 运动科学 运动科学
背景情况:
- 有限的研究存在于对肌肉机械性质的超极小负载抵抗运动的急性影响.
- 了解这些影响对于优化运动员训练方案和预防运动员受伤至关重要.
研究的目的:
- 检查双腿肌和大侧肌肌肉振荡频率和度的急性变化.
- 为了比较高负荷和最高负荷前式坐对这些肌肉特性的影响.
主要方法:
- 十九名男子手球运动员在70%的1RM,90%的1RM和120%的1RM (supramaximal) 进行了前.
- 运动前后使用手持式肌肉计测量了双腿肌和横腿肌的肌肉度和振荡频率.
- 统计分析包括双向ANOVA和弗里德曼测试来比较条件和时间点.
主要成果:
- 在各种条件或时间点中,没有观察到双腿骨和巨横骨硬度的显著变化.
- 与运动前相比,超最大前导致运动后巨大的横向振荡频率显著增加.
- 双股的振荡频率在高负荷坐后显著降低,而在运动后的时间点上,相比之下,最高最大的坐.
结论:
- 与高负荷坐相比,超最大负荷前坐会导致肌肉振荡频率发生更大的急性变化.
- 这些发现表明,超最大负荷显著影响肌肉的动态机械特性,特别是它的振荡频率.
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