在保加利亚分裂坐练习中的负载-速度关系.
Juan Rabal-Pelay1, Héctor Gutiérrez1, Pablo Jesús Bascuas1
1Facultad de Ciencias de la Salud, Universidad San Jorge, Zaragoza, Spain.
Journal of strength and conditioning research
|July 29, 2024
概括
保加利亚分 (BSS) 演习显示出强烈的负载-速度关系,允许使用平均推进速度 (MPV) 设置训练强度. 这种关系在主导腿和非主导腿之间保持一致,尽管有强度差异.
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:
- 保加利亚分 (BSS) 是一种单方面炼,通常用于力量训练.
- 了解负载-速度关系 (LVR) 对于优化训练处方至关重要.
- 之前的研究已经在双边练习中确定了LVR,但对于像BSS这样的单边变化知之甚少.
研究的目的:
- 分析在保加利亚分 (BSS) 练习中的负载速度关系 (LVR).
- 在BSS中比较主导和非主导腿之间的LVR.
- 要确定是否可以使用平均推进速度 (MPV) 来规定BSS中的训练强度.
主要方法:
- 21名经过力量训练的男子在BSS中使用史密斯机器进行了渐进式加载测试.
- 负载逐渐增加,直到平均推进速度 (MPV) 下降到0.4 m·s−1.1.
- 用多项式回归分析来建模相对负载 (%1RM) 和MPV之间的关系.
主要成果:
- 在BSS中观察到一个强大的负载速度关系,R2 = 0.945.5.
- 在给定的相对负载 (%1RM) 中,在主导腿和非主导腿之间没有发现MPV的显著差异.
- 尽管绝对一次重复最大 (1RM) 强度有差异,但LVR在四肢之间是一致的.
结论:
- 在BSS中,负载-速度关系很强,可以预测.
- 平均推进速度 (MPV) 可以有效地用于规定BSS的训练强度.
- 肢体之间的负载速度关系是稳定的,这表明相对于最大强度而言,神经肌肉反应类似.
相关概念视频
Eccentric Loading
340
Eccentric loading is a crucial concept in the study of structural engineering and mechanics, particularly when analyzing the stability and stress distribution in columns. Unlike centric loading, where the force is applied along the centroidal axis, causing uniform compression, eccentric loading occurs when a force is applied off-center. This off-center application introduces not only direct compressive stress but also bending stress, significantly influencing the column's behavior under...
340
Deformation of Member under Multiple Loadings
163
When a rod is made of different materials or has various cross-sections, it must be divided into parts that meet the necessary conditions for determining the deformation. These parts are each characterized by their internal force, cross-sectional area, length, and modulus of elasticity. These parameters are then used to compute the deformation of the entire rod.
In the case of a member with a variable cross-section, the strain is not constant but depends on the position. The deformation of an...
In the case of a member with a variable cross-section, the strain is not constant but depends on the position. The deformation of an...
163
Isotonic and Isometric Muscle Contractions
2.9K
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...
2.9K
Muscle Stimulation Frequency
2.1K
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...
2.1K


