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相关概念视频

Exercise and Muscle Performance01:27

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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.
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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.
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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.
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Muscle Imbalances: Testing and Training Functional Eccentric Hamstring Strength in Athletic Populations
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只有古怪的抵抗训练可以减少被动肌肉硬,同时增加腿筋的大小和强度吗?

Raki Kawama, Katsuki Takahashi1, Haruki Ikifune2

  • 1Faculty of Health and Sports Science, Doshisha University, Kyoto, JAPAN.

Medicine and science in sports and exercise
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PubMed
概括
此摘要是机器生成的。

用长肌长度 (LL) 进行奇特的耐力训练可以降低腿筋肌肉硬度. 每周进行三次这种训练可以提高力量和肌肉大小,这表明了改善肌肉特性的一种新方法.

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科学领域:

  • 运动生理学 运动生理学
  • 肌肉生理学 肌肉生理学
  • 生物力学 生物力学

背景情况:

  • 经验证据表明,抵抗训练会增加被动肌肉硬度.
  • 最近的发现表明,长肌长度 (LL) 的奇特的仅限阻力运动可以急剧降低腿筋被动度.
  • 这种训练模式每周变化频率的慢性影响仍在调查中.

研究的目的:

  • 为了研究与LL的奇特的唯一抵抗训练在双关节腿筋肌肉的被动度的慢性影响.
  • 为了比较每周两次与三次训练对被动肌肉性的影响.
  • 为了评估肌肉强度和大小对训练干预的反应的变化.

主要方法:

  • 36名健康的年轻男性被分为两组训练 (2或3次/周) 和对照组.
  • 训练包括在LL进行10周的异常硬腿死.
  • 测量包括腿筋剪切模块,膝盖曲等比扭矩,以及训练前后的肌肉体积.

主要成果:

  • 半膜体肌肉剪切模量在3次/周治疗组显著下降11.4%.
  • 在每周2次会议或对照组中,没有观察到腿筋肌肉度的显著变化.
  • 两个训练组都显示出异米膝盖屈曲扭矩和半膜体肌肉体积的显著增加.

结论:

  • 使用LL的慢性奇特的仅限阻力训练,特别是每周更高的频率,可以减少被动肌肉硬.
  • 这种训练方法有望降低肌肉性,同时增强肌肉力量和大小.
  • 这些发现表明,优化肌肉功能和身体表现的潜在新策略.