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足底筋膜之绞盘机制

(2013-06-02 22:05:27)

还是转我在运动科学的帖子。

 

这篇文章主要讲述足部稳定性的重要性其实并不亚于核心稳定性。核心稳定性是看得见的训练故风靡各处
里面有提到 稳定度是你抵抗运动的能力,尤其指在动作结束的时候。加强足部稳定度最好的方式就是增加与地面接触的面积,愈多的面积接触到地面,愈容易快速的进行移动或抵抗动作。
更讲了一点是没有足部稳定性核心稳定一点用处都没有


Posted by Phil Wagner

 

Foot stability > Core stability

Stability is your ability to resist movement, especially at the end ranges of motion . One of the best ways to enhance foot stability, or any movement that challenges your balance, is to increase the surface area. The more area in contact with the ground, the easier it is to move quickly or resist movement. Perhaps the easiest example is how much more stable you are standing on two feet versus one. For those of you who have had too many concussions, you have half the surface area when on just one foot.


Off-center Signature


We mentioned stability being exposed at end ranges of motion, and a great example occurs when you are jumping and have to finish off your toes to move in the desired direction. If the foot is unstable, that toe off period is shortened or directed in a less desirable direction. The movement signatureTM we see among these athletes is shown to the right, called "off-center." We see plantar fasciitis, stress fractures of the foot, and ACL injuries with thismovement signatureTM  

The athlete can generate substantial force initially (RATE, see Sparta Point 2/8/12) and use trunk strength to transfer that force within the trunk to minimize transitions, or the amortization phase (FORCE, see Sparta Point 9/3/12). However, when it comes to finishing the movement, the athlete is unable to prolong his TIME of force production.



Prescription is Non-Vertical


The best way to improve the TIME within this movement signatureTM  is to provide movements that just take longer for each rep such as heavy, single leg movements (lunges, split squats, etc.). Loaded carries like sled pulls/pushes or jumping require you to move in different directions than vertical, and as such, require a longer amount of TIME to complete.

As mentioned last week, the myth of measuring barbell velocity would be even more hurtful for those with foot instability needing more TIME.

Or, as my friend and fellow coach Jim Steel says, if we keep doing what we always have done, we need to bring back leeches and start bleeding people out.

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