肘节为上体粗中关节,其活动能力有限(尤其向外、向后活动),在肘节伸直后更易分错。一经克制,手臂力量顿失,它威胁人整身要节,即使强壮之人也难能为力。然而肘居中节,坚硬刚性,粗壮灵活,前锋有手,如肘遭突袭,手可兼应,故制肘必先制手。 Toggle for the upper body coarse joints, their limited ability to activities (especially outward, backward activities), after straightening the toggle more easily misclassified. Once restrained, arm power is lost, it threatens the whole body to the section, even the strong person can not do anything. Elbow middle section, however, hard rigid, thick and flexible, striker has a hand, such as the elbow were raided, hands and should be, so the elbow must first control.