等动器械的问世,使运动员的力量训练器械又迈前了一大步。所谓等动器械是一个随外阻力的大小自动调节的装置,使得肌肉在整个动作范围内都受到很大阻力,从而使肌肉受到刺激时间更长。众所周知的举杠铃或重物,只能在动作开始时由于惯性的作用对肌肉有较大刺激,而整个动作范围内对肌肉刺激就相对过短。显然,等动器械在提高运动员的力量方面有着举杠铃或重 The advent of other moving instruments, so that the strength of athletes training equipment and a big step forward. The so-called isokinetic apparatus is a device with the size of the external resistance automatically adjusts, making the muscles in the entire range of motion are subject to great resistance, so that the muscles are stimulated longer. It is well-known to lift a barbell or weight that can only be used to stimulate the muscles at the beginning of the action due to inertia, and to stimulate the muscles too short over the entire range of motion. Obviously, waiting to move equipment to raise the strength of athletes have a barbell or weight