相关实验视频
Updated: Jun 22, 2025
08:12
Experimental Methods to Study Human Postural Control
Published on: September 11, 2019
9.4K
前后倾斜的支面对姿势平衡和脚肌肉活动的影响
Siripatra Atsawakaewmongkhon1,2, Annabelle Couillandre1,2, Alain Hamaoui1,2
1CIAMS, Université Paris Saclay, Orsay, France.
PloS one
|June 27, 2024
概括
站在向后倾斜的表面上会损害身体的平衡. 低角度向前的斜坡可以通过改变与肌肉长度-张力关系相关的脚肌肉活动来改善姿势稳定性.
科学领域:
- 生物力学 生物力学
- 人体生理学 人体生理学
- 运动学 运动学
背景情况:
- 有限的研究存在于低于14度的斜坡上的身体平衡.
- 倾斜的表面在日常环境中很常见.
研究的目的:
- 研究前后倾斜 (7°和15°) 对姿势平衡的影响.
- 在斜坡上进行姿势调整时分析脚肌肉 (前脚,内肌,中胃肌) 活动.
主要方法:
- 15名健康成年人 (27.67±3.9岁) 参与了这项研究.
- 使用了体位图和表面电肌图 (EMG).
- 试验对象站在倾斜0°,7°和15° (向前和向后) 的表面上.
主要成果:
- 压力中心 (CP) 随着斜坡方向的变化 (前进斜坡向前,后退斜坡向后).
- 前后CP位移在向后坡 (DF15) 上增加,在向前坡 (PF7) 上减少.
- 肌肉活动因肌肉长度而异:在缩短的姿势中更高 (例如,PF7中的Soleus),在延长的姿势中更低 (例如,DF15中的Gastrocnemius和Soleus).
结论:
- 反向斜坡会对姿势平衡产生负面影响.
- 前方的斜坡可能会增强姿势稳定性.
- 脚肌肉活动的变化与骨肌肉的长度-张力关系有关.
更多相关视频
07:52Evaluating Postural Control and Lower-extremity Muscle Activation in Individuals with Chronic Ankle Instability
Published on: September 18, 2020
8.4K
11:06A Human-machine-interface Integrating Low-cost Sensors with a Neuromuscular Electrical Stimulation System for Post-stroke Balance Rehabilitation
Published on: April 12, 2016
10.4K
相关概念视频
01:28Muscles of the Leg that Move the Foot and Toes
1.4K
The human leg comprises an intricate system of muscles that facilitate the movement of feet and toes. Within this system, the muscles are categorized into the anterior, lateral, and posterior compartments, each with a unique set of muscles carrying out specific functions.
Anterior Compartment
The anterior compartment includes muscles that contribute to the dorsiflexion of the foot. This compartment houses the tibialis anterior, extensor hallucis longus, and extensor digitorum longus muscles....
Anterior Compartment
The anterior compartment includes muscles that contribute to the dorsiflexion of the foot. This compartment houses the tibialis anterior, extensor hallucis longus, and extensor digitorum longus muscles....
1.4K
01:13Stability of Equilibrium Configuration: Problem Solving
603
The stability of equilibrium configurations is an important concept in physics, engineering, and other related fields. In simple terms, it refers to the tendency of an object or system to return to its equilibrium position after being disturbed. The stability of an equilibrium configuration can be analyzed by considering the potential energy function of the system and examining its behavior near the equilibrium point.
Problem-solving in the context of the stability of equilibrium configuration...
Problem-solving in the context of the stability of equilibrium configuration...
603