膈肌是由随意及自主神经系统控制的骨骼肌,它和其它吸气肌构成一个“泵”,其基本功能是呼吸,尤其是在吸气相.膈肌对神经支配的反应类似于骨骼肌;其基本功能是由收缩特性决定的.膈肌的收缩受呼吸系统力学及控制机制所施加的特别抑制因素调节。举例说,膈肌抵抗弹力和阻力有节律地收缩,每一次松弛,膈肌返回到相对不变的静息态,这是由肺以及胸廓回缩力之间的平衡决定的.四肢肌肉在运动期间也能有节律地收缩,但其必须克服占优势的 The diaphragm is controlled by the voluntary and autonomic nervous system of the skeletal muscle, it and other inspiratory muscles constitute a “pump”, its basic function is to breathe, especially in the inspiratory phase.Diaphragmatic nerve innervation similar to skeletal muscle; its The basic function is determined by the contractile properties, which are regulated by the particular inhibitory factors exerted by the respiratory mechanics and control mechanisms. For example, the diaphragm contracts rhythmically against elastic and resistance forces, each time the diaphragm relaxes and the diaphragm returns to a relatively constant resting state, which is determined by the balance between the lungs and the contractility of the thorax. It contracts rhythmically, but it must overcome the predominance