MCML Assessment and Treatment of Abnormal Muscle Tone Practice Test

The main idea is building trunk control and upright postural stability in a gradual, gravity-resisted way. After being in a supine position, side lying trains you to maintain lateral alignment and weight-bearing on one side without needing to sit upright yet. Once that lateral stability is mastered, the next step is side sitting, which increases the demand on the trunk to stay upright while the body is supported in a seated, sideways orientation. This position challenges balance and trunk control in a more functional, upright context and serves as a bridge to the next, more demanding postures like four-point and eventually standing. Rolling to the side is a rotational movement that can help with transitioning between positions, but it doesn’t provide the same steady upright postural challenge that side sitting introduces. Four-point and standing come after as the demands on balance, weight shifting, and coordinated movement grow.