Since multiple action potentials don't travel down all the motor neurons at exactly the same time, each motor unit twitches at slightly different times, which helps smooth out the … twitchiness.

由于多个动作电位不会在完全相同的时间沿着所有的运动神经元运动，每个运动单元在稍微不同的时间抽搐，这有助于消除抽搐。