Table 3.

Muscle actions contributing to 4 composite scores.

Muscle Action	Motricity Index	Motor Index Score	MRC Sum Score	MMT 8
Neck flexors				X
Shoulder abduction	X		X	X
Elbow flexion	X	X	X	X
Elbow extension		X
Wrist extension		X	X	X
Prehension	X
Finger flexion (middle)		X
Finger abduction (5th)		X
Hip flexion	X	X	X
Hip abduction				X
Hip extension				X
Knee extension	X	X	X	X
Ankle dorsiflexion	X	X	X	X
Great toe extension		X
Ankle plantarflexion		X

∗ Where specific muscles were originally described, corresponding actions have been substituted.