What is extensor synergy?
They consists of scapular abduction and depression, shoulder adduction & internal rotation, elbow extension, forearm pronation, & wrist & finger flexion or extension. Shoulder adduction & internal rotation are usually the most hyertonic components of the extensor synergy, much less tone in the elbow extension component.
* The LE is composed of hip abduction, extension, & internal rotation; knee extension, & ankle plantar flexion & inversion, & toe flexion.
Hip abduction, knee extension, & ankle plantar flexion are usually the most hypertoic components whereas hip extension & internal rotation are usually less hypertonic.