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Preintervention and postintervention comparison of the involved and uninvolved limbs. A, Knee-extension maximal voluntary isometric contraction torque. B, Quadriceps central activation ratio. C, Limb symmetry index for both measures between individuals with a history of anterior cruciate ligament reconstruction and matched control participants. a Indicates difference between the preintervention anterior cruciate ligament reconstruction and the control groups (P ≤ .05).
