使用软纸气球在异度部绑架练习中的肌肉激活模式上的外部焦点指令:与外部阻力工具进行比较分析
Koji Murofushi1, Tsuyoshi Morito2, Hiroshi Akuzawa3
1Tokyo Medical and Dental University (TMDU), Sports Science Center, Bunkyo-ku, Tokyo, Japan; Government of Japan Ministry of Education Culture Sports Science and Technology, Japan Sports Agency, Chiyoda-ku, Tokyo, Japan.
Journal of bodywork and movement therapies
|November 27, 2024
概括
一种新的纸气球同度运动激活干部肌肉类似于传统的阻力带,但没有关节压力. 这种方法还可以使身体对面的肌肉参与其中.
科学领域:
- 生物力学 生物力学
- 运动生理学 运动生理学
- 康复科学 康复科学 康复科学
背景情况:
- 通过使用软纸气球和外部焦点,研究了一种新型的同度运动.
- 强调肌肉共同收缩以控制,避免对物体施加直接压力.
- 旨在与各种外部阻力方法比较同度性部绑架期间的肌肉激活.
研究的目的:
- 为了评估在同度性部绑架期间肌肉激活模式的差异.
- 为了比较一个新的纸气球任务与传统的外部阻力 (硬塑料,非弹性,弹性带).
- 为了确定这些运动对逆侧肌肉激活的影响.
主要方法:
- 招募了13名健康的成年男性 (20-28岁).
- 测量了六个干部肌肉的激活 (腹横肌[TrA],内斜肌[IO],多肌[MF]等). 和五个下肢肌肉 (最大肌肉[GMax],中部肌肉[GMed],等等. ) 的情况.
- 使用表面和细线电极来测量肌肉活动在不同的同位数部绑架练习.
主要成果:
- 绑架侧面之间的肌肉活动没有显著差异,除了带有弹性带的最大关节 (GMax) 和中等关节 (GMed),以及带有硬塑料的直腿骨 (RF) 和双腿骨 (BF) (p>0.05).
结论:
- 干部肌肉 (TrA,IO,MF) 在纸气球和外部加载任务之间表现出类似的激活.
- 纸气球任务激活了干部肌肉而无需承重,可能降低了关节压力.
- 所有测试任务都显示出对侧肌肉激活.
相关概念视频
01:12Internal and External Forces
Newton's first law states that a net external force causes a change in motion. External forces act on an object or system, originating outside of the object or system. In contrast, internal forces originate inside the system of interest and do not lead to any acceleration. In simpler words, internal forces are forces that act on one part of an object and are exerted by another part of the same object. External forces are forces that act on an object due to some other object. Therefore, when...
00:57Power Expended by a Constant Force
The relationship between work done and the time taken to do it can be explained using the concept of power. For example, several sprinters in a race may have the same velocity when they reach the finish line, therefore doing the same amount of work, but the winner does it in the least amount of time. Thus, power is defined as the rate of doing work. Since work can vary as a function of time, the average power is defined as the work done during a time interval, divided by the time interval.
01:11Work Done on a System by External Force
The work done by an external force on a particle changes its kinetic energy. However, internal forces must also be considered for a system of interacting particles. The potential energy formulation helps formulate the effect of internal forces. The net work done by an external force can be written in terms of the total change of mechanical energy, which includes both kinetic and potential energies.
In the presence of a non-conservative opposing force, like friction, some part of the work done...
In the presence of a non-conservative opposing force, like friction, some part of the work done...