During the middle phase of arm reaching, the forearm supinates
and the elbow flexor moment moves the hand away from the box vertically.
The target posture required subjects to either supinate
or pronate the virtual wrist across a movement distance of 75[degrees] to achieve success.
The whole foot may pronate in (eversion, valgus position), or supinate
out (inversion, varus position).
The most common method of reducing these injuries is to supinate
the wrist and flex the elbow.
This may indicate the foot is less stable, and tends to supinate
when landing on a softer surface with less rigidity.
The exam maneuver is performed by having the patient actively flex the elbow to 90[degrees] and fully supinate
the forearm, and with a normal test, the examiner should be able to insert the index finger about 1cm deep to a cord like structure in the antecubital fossa, approached from the lateral side to avoid false positives from the intact lacertus aponeurosis.
At 4 weeks posttransplant, Patient 4 could supinate
(Figure 8) and pronate (Figure 9) the hand and, with support, pick up light objects with the thumb and forefinger (Figure 10).
Forward elevation of 40[degrees], no external rotation and inability to completely supinate
the forearm were also identified.