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a Average curves for the anterior-posterior tibial translation (A-PTT) in response to the 67-N A-P tibial load at 30° of flexion. Positive and negative force values indicate anterior and posterior tibial loads, respectively. b Anterior component of the in situ force of the ACL as a function of A-PTT at 30° of flexion. Values of A-PTT are normalized to those for the respective sham-operated control
