传统,相和赫克斯巴尔的生物机械比较在抵抗训练的女性中死亡
Andreas H Gundersen1, Roland van den Tillaar, Hallvard N Falch
1Department of Sports Science and Physical Education, Nord University, Levanger, Norway.
Journal of strength and conditioning research
|December 20, 2024
概括
在训练有素的女性中,六杆式死提高了杆杆速度和膝盖延伸. 传统和相死吊更好地准部延伸器在最大努力时在锁定附近.
科学领域:
- 运动科学 运动科学 运动科学
- 生物力学 生物力学
- 强度和适应条件 强度和适应条件
背景情况:
- 死亡举重是下体和脊柱肌肉发育的基础运动.
- 有限的研究比较了女性在最大努力时常规,相和六杆死的生物力学差异.
研究的目的:
- 为了比较力量训练的女性在3次重复最大 (3RM) 期间的动力学,净关节时刻 (NJM) 和常规,相和六杆死之间的肌肉激活.
主要方法:
- 十一名经过抵抗训练的女性使用传统,相和六条杆的变化进行了3RM死.
- 在最后一次重复过程中,统计参数映射分析了动力学,NJM和表面电肌学.
- 杆负荷平均为103.18 ± 18.47 公斤 (传统),101.54 ± 15.01 公斤 (相) 和99.70 ± 15.94 公斤 (六轴杆).
主要成果:
- 传统和相的死提升会在锁定前产生更大的部NJM.
- 六杆式死显示出更高的杆杆速度,更大的膝盖NJMs,以及增加部和膝盖的曲.
- 在变异之间没有注意到肌肉激活的显著差异.
结论:
- 在训练有素的女性中,六杆式死可能有利于增强膝盖延伸器激活和杆速度.
- 传统和相死似乎更有效地准部延伸器在最大3RM升降的锁定阶段.
相关概念视频
01:05Free-falling Bodies: Example
An object falling without any air resistance under the influence of gravitational force is said to be in free-fall. For free-falling bodies, the acceleration due to gravity is constant, irrespective of their mass. Free-fall is experienced not only by objects falling downward, but also by all objects whose motion is influenced by gravitational force alone. The dynamics of free-fall motion can be calculated using kinematic equations of motion, since free-fall acceleration is constant.
The...
The...
01:14Mechanical Efficiency of Real Machines
The mechanical efficiency of a machine is a fundamental concept that describes how effectively a machine can convert input work into output work. According to this concept, the efficiency of a machine is equal to the ratio of the output work to the input work. An ideal machine, meaning a machine that has no energy losses, has an efficiency of one. This implies that the input work and the output work are equal.
However, in reality, no machine can be truly ideal, and all of them experience some...
However, in reality, no machine can be truly ideal, and all of them experience some...