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人体的运动,一方面是经常受力学规律的制约,另一方面是肌肉力的起主导作用。肌肉的工作条件都是支撑腿远侧支撑和摆动腿近侧支撑工作相互交替,从而构成了人体的复杂运动。影响人体运动的力是多方面的,一般分为内力和外力。1.内力:它是人体内部相互作用所产生的力,作用力和反作用力的着力点都在人体内部,而不能作用于人体总重心上,因此,它只能引起身体的某一环节相对于另一环节的运动,而不能改变身体总重心在空间的位移或运动。内力是动力的主要来源。这里主要指的是肌肉力。
Human movement, on the one hand is often constrained by the laws of mechanics, on the other hand is the leading role of muscle force. Muscular working conditions are support leg distal support and swing legs near the support work alternately, thus constituting the body's complex movement. The forces that affect the movement of the human body are manifold and generally divided into internal forces and external forces. 1. Internal force: It is the interaction of the human body produced by force, force and reaction of the force point are in the human body, but not on the body's total center of gravity, it can only cause a certain part of the body relative to The other part of the movement, but can not change the body's total center of gravity in space displacement or movement. Internal force is the main source of power. Mainly refers to muscle strength here.