结合和独特的伸展,泡滚动和奇特运动对年轻男性的急性影响
Sigitas Kamandulis1, Phurichaya Werasirirat2,3, Juntip Namsawang2,3
1Institute of Sport Science and Innovations, Lithuanian Sports University, Kaunas, Lithuania.
Journal of human kinetics
|November 20, 2024
概括
各种运动,包括动态拉伸与泡滚动,显著提高年轻男性的腿筋弹性. 这些干预措施还导致肌肉特征的异度强度降低和特定条件的变化.
科学领域:
- 体育科学 运动科学 运动科学
- 运动生理学 运动生理学
- 康复 康复 康复 康复
背景情况:
- 紧张的腿筋可以限制运动范围并影响运动表现.
- 了解不同干预措施对腿筋肌肉特性的急性影响,对于优化训练和恢复至关重要.
研究的目的:
- 调查动力拉伸与泡滚动 (DS+FR),静态拉伸与泡滚动 (SS+FR),仅静态拉伸 (SS) 和异常运动 (ECC) 对腿筋灵活性,肌肉特征和性能的直接影响.
- 为了比较这些干预措施在患有腿筋紧张的个体中的有效性.
主要方法:
- 一项交叉随机研究涉及25名年轻男性,他们患有腿筋紧张.
- 测量包括带长度 (FL),肌单元 (MTU) 刚度,肌肉氧和度 (SmO2) 以及同度和偏心扭矩.
- 数据是在四个干预条件 (DS+FR,SS+FR,SS,ECC) 之前,之后立即和30分钟后收集的.
主要成果:
- 这四种干预措施都显著增加了腿筋的灵活性 (直腿提高运动范围) 运动后立即.
- 在所有条件下,带长度 (FL) 都增加了.
- 肌单元 (MTU) 刚度仅在异常运动 (ECC) 后降低.
- 在干预后,腿筋同度扭矩减少了6-9%,异心扭矩的变化有所不同.
- 肌肉氧和度 (SmO2) 在DS+FR,SS+FR和SS后立即增加,但在ECC后倾向于下降.
结论:
- 在所有测试的干预措施中,观察到腿筋灵活性的大幅度和类似的立即增加.
- 降低等比扭矩是一个常见的结果,以及FL,MTU刚度或SmO2.2的特定条件变化.
- 这些发现提供了实用指导,以急性增强运动范围的个人体验腿筋紧张.
相关概念视频
Isotonic and Isometric Muscle Contractions
2.7K
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...
2.7K
Relaxation of Skeletal Muscles
3.0K
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....
3.0K
Muscle Stimulation Frequency
2.0K
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...
2.0K
Exercise and Muscle Performance
1.3K
Exercise induces a range of adaptations in muscle tissue, depending on the type and duration of activity. Such physical training can be broadly categorized into two types: endurance exercises and resistance exercises.
Endurance exercises
Endurance exercises involve running, swimming, or cycling, which require repetitive movements with low force output. When a person engages in endurance exercise, a few noticeable changes occur in their skeletal muscles. For instance, the number of capillaries...
Endurance exercises
Endurance exercises involve running, swimming, or cycling, which require repetitive movements with low force output. When a person engages in endurance exercise, a few noticeable changes occur in their skeletal muscles. For instance, the number of capillaries...
1.3K
Skeletal Muscle Relaxants: Adverse Effects
335
Skeletal muscle relaxants are widely used for muscle paralysis and relieving pain following any muscle injury or stiffness. However, depending on the drug type, they can have adverse effects that range from mild to severe. Usually, nondepolarizing neuromuscular blockers have minimal side effects. For example, drugs like d-tubocurarine, cisatracurium, and rocuronium cause hypotension, whereas drugs like baclofen, when stopped abruptly, can lead to the recurrence of spastic conditions.
Unlike...
Unlike...
335


