在单人皮克球比赛中缺乏神经肌肉疲劳:初步研究
Eric A Martin1, Steven B Kim2, George K Beckham1
1Kinesiology Department, Cal State Monterey Bay, Seaside, CA 93955, USA.
Journal of functional morphology and kinesiology
|July 23, 2025
概括
球运动员在比赛后没有表现出神经肌肉疲劳;相反,他们提高了跳跃表现. 这表明单打球可能不足以引起疲劳.
科学领域:
- 运动科学 运动科学 运动科学
- 运动生理学 运动生理学
- 生物力学 生物力学
背景情况:
- 神经肌肉疲劳是运动员在激烈竞争后常见的问题.
- 皮克球是一项快速发展的运动,但它的生理需求,特别是关于疲劳的需求,还不太清楚.
- 反运动跳跃 (CMJ) 是评估下体神经肌肉功能和疲劳的可靠测试.
研究的目的:
- 为了研究单打比赛后成年挑球运动员的神经肌肉疲劳反应.
- 为了测试玩家在比赛后会经历神经肌肉疲劳的假设.
主要方法:
- 六名成年皮克球运动员 (40.2 ± 10.1岁) 参加了一场15场单打比赛.
- 赛前和赛后进行了反运动跳跃 (CMJ) 测试,以测量使用力盘的下肢力量和功率.
- 混合效应回归建模分析了CMJ绩效结果的变化.
主要成果:
- 与假设相反,所有9个CMJ结果都在比赛后显著改善.
- 净冲动,RSImod和推进性峰值功率等关键性能指标显著增加 (p < 0.0001).
- 对于多个CMJ参数,观察到很大的效果大小 (部分-eta平方和F平方),表明显著的性能提升.
结论:
- 参与者没有表现出神经肌肉疲劳;他们表现出增强的CMJ性能.
- 可能的原因包括在比赛之间得到充分的休息,或从单人球中获得不足的下肢刺激以诱发疲劳.
- 需要进一步的研究,以充分阐明竞争球的生理需求.
相关概念视频
Social Facilitation
33.0K
Not all intergroup interactions lead to negative outcomes. Sometimes, being in a group situation can improve performance. Social facilitation occurs when an individual performs better when an audience is watching than when the individual performs the behavior alone. This typically occurs when people are performing a task for which they are skilled.
33.0K
Fatigue
241
Fatigue occurs when materials rupture under repeated or fluctuating loads, even at stress levels far below their static breaking strength. It typically results in brittle failure, even for ductile materials. It is a critical consideration in designing machines and structural components subjected to repetitive or varying loads. The nature of these loadings can range from fluctuating loads like unbalanced pump impellers causing vibrations to repeatedly bending a thin steel rod wire back and forth...
241
Muscle Recovery and Fatigue
2.5K
Muscle fatigue refers to the decline in a muscle's ability to maintain the force of contraction after prolonged activity. It primarily stems from changes within muscle fibers. Even before experiencing muscle fatigue, one may feel tired and have the urge to stop the activity. This response, known as central fatigue, occurs due to changes in the central nervous system, namely the brain and spinal cord. While there is no single mechanism that induces fatigue, it may serve as a protective...
2.5K
Muscle Stimulation Frequency
2.6K
The contraction strength of muscles is regulated by motor neurons, which modulate the frequency of action potentials dispatched to the motor units based on the body's requirements. This process of varying the muscle stimulation frequency allows muscles to contract with a force that is precisely tailored to the needs of the moment, whether lifting a feather or a heavy box.
Wave summation
At low firing rates, motor neurons induce individual twitch contractions in muscle fibers. These twitches...
Wave summation
At low firing rates, motor neurons induce individual twitch contractions in muscle fibers. These twitches...
2.6K
Relaxation of Skeletal Muscles
3.8K
The period of muscle contraction primarily influences the duration of stimulation at the neuromuscular junction (NMJ), the presence of free calcium ions in the sarcoplasm, and the availability of energy or ATP to support contractions.
When an action potential reaches the axon terminal, it depolarizes the membrane and opens voltage-gated sodium channels. Sodium ions enter the cell, further depolarizing the presynaptic membrane. This depolarization causes voltage-gated calcium channels to open....
When an action potential reaches the axon terminal, it depolarizes the membrane and opens voltage-gated sodium channels. Sodium ions enter the cell, further depolarizing the presynaptic membrane. This depolarization causes voltage-gated calcium channels to open....
3.8K
Disorders of the Skeletal Muscle
1.1K
The clinical conditions affecting the skeletal muscle tissue are broadly categorized as musculoskeletal and neuromuscular disorders.
Musculoskeletal disorders
Musculoskeletal disorders involve injuries and conditions affecting the skeletal muscles and associated connective tissues. These disorders can arise from acute biomechanical stresses or chronic overuse and can occur across different age groups. Common injuries include sprains, fractures, and muscular strains, often resulting from...
Musculoskeletal disorders
Musculoskeletal disorders involve injuries and conditions affecting the skeletal muscles and associated connective tissues. These disorders can arise from acute biomechanical stresses or chronic overuse and can occur across different age groups. Common injuries include sprains, fractures, and muscular strains, often resulting from...
1.1K


