在持续的亚最大同位体运动中单边诱导的四肢筋疲劳不会改变对侧腿伸缩器的性能
Brian Benitez1, Minyoung Kwak1, Pasquale J Succi1
1Department of Kinesiology and Health Promotion, University of Kentucky, Lexington, KY 40536, USA.
Journal of functional morphology and kinesiology
|June 27, 2023
概括
单边腿部运动不会导致男性和女性之间的疲劳水平不同. 虽然炼的腿会变弱,但没有炼的腿会变弱.
科学领域:
- 运动生理学 运动生理学
- 神经肌肉功能 神经肌肉功能
- 人类表现的人类表现.
背景情况:
- 单边运动可能会导致炼的肢体疲劳.
- 单侧运动对对侧肢的影响以及潜在的性别差异尚未完全理解.
研究的目的:
- 调查疲劳单边运动对两侧和两侧四肢表现的影响.
- 检查疲劳反应和神经生理结果的性别依赖差异.
主要方法:
- 10名男性和10名女性对疲劳进行了单边同度腿部延伸.
- 测量了最大自愿的同位数收缩 (MVIC),表面电肌图 (sEMG) 和机械肌图 (sMMG).
- 记录了巨大的横向的振幅 (AMP) 和平均功率频率 (MPF).
主要成果:
- 在任务失败或ipsilateral疲劳的时间没有显著的性别差异.
- MVIC力在炼的肢体下降,但未炼的肢体没有下降.
- 疲劳影响了sEMG MPF,这表明神经对两只四肢的影响,独立于性别.
结论:
- 男性和女性之间,从次最大单边同位体运动中获得的疲劳能力是相似的.
- 在肢体性能方面没有明显的交叉效应.
- 神经生理学变化表明神经竞争可能会影响双肢疲劳后单边疲劳的表现.
更多相关视频
07:30Muscle Imbalances: Testing and Training Functional Eccentric Hamstring Strength in Athletic Populations
Published on: May 1, 2018
15.4K
08:40Quantifying Arms and Legs Contributions during Repetitive Electrically-Assisted Sit-To-Stand Exercise in Paraplegics: A Pilot Study
Published on: November 11, 2022
1.2K
相关概念视频
01:23Muscles that Move the Leg
2.1K
The movement of the legs is facilitated by numerous muscles located within the anterior, medial, and posterior compartments of the thigh.
Anterior Compartment
The quadriceps femoris, the most visible muscle of the anterior compartment, is integral for leg extension and thigh flexion. It is formed by merging four distinct muscles — the vastus lateralis, vastus medialis, vastus intermedius, and rectus femoris. The quadriceps tendon, a shared tendon of the four quadriceps muscles, is affixed...
Anterior Compartment
The quadriceps femoris, the most visible muscle of the anterior compartment, is integral for leg extension and thigh flexion. It is formed by merging four distinct muscles — the vastus lateralis, vastus medialis, vastus intermedius, and rectus femoris. The quadriceps tendon, a shared tendon of the four quadriceps muscles, is affixed...
2.1K
01:22Isotonic and Isometric Muscle Contractions
3.4K
Two primary types of muscle contractions are isotonic and isometric, each serving unique functions and involving distinct mechanisms. Both isotonic and isometric contractions are integral to the body's complex system of movement and stability. Isotonic exercises contribute significantly to functional strength and movement, while isometric contractions are crucial for maintaining posture and joint stability.
Isotonic contractions
Isotonic contractions occur when a muscle changes length while...
Isotonic contractions
Isotonic contractions occur when a muscle changes length while...
3.4K