Abduction		Turning the joint outward
Adduction		Moving a body part away from the midline of the body
Ambulation		Turning the joint inward
Atrophy		Turning the joint downward
Contracture		Bending the toes and foot up at the ankle
Dorsiflexion		Straightening a body part
Extension		The foot is bent; bending the foot down at the ankle
External rotation		The decrease in size or the wasting away of tissue
Flexion		The act of walking
Footdrop		Moving a body part toward the midline of the body
Hyperextension		Bending a body part
Internal rotation		The lack of joint mobility caused by abnormal shortening of a muscle
Orthostatic hypotension		Turning the joint
Plantar flexion		The movement of a joint to the extent possible without causing pain
Pronation		Abnormally low blood pressure when the person suddenly stands up; postural hypotension
Range of motion		Excessive straightening of a body part
Rotation		Turning the joint upward
Supination		The foot falls down at the ankle; permanent plantar flexion