Preferential coupling between voluntary movements of ipsilateral limbs

摘要: Abstract Single or cyclical voluntary movements of flexion and extension the hand, performed in a parasagittal plane, are immediately naturally coupled with same foot only if extremities follow simultaneously direction. Instead, great care attention required to move two segments opposite directions, an association which tends reverse spontaneously ‘easy’ pattern. This rule is followed independently muscles employed, since it holds both when hand prone supine. The principle also applies many other couples ipsilateral limbs different limb.