“…6 Following knee injury and surgery, quadriceps inhibition, atrophy and weakness are major clinical problems. 1 Quadriceps weakness, therefore, can leave the knee vulnerable to excessive tension, compression and torsion forces, potentially risking re-injury in the short-term and OA in the long-term. As such, reversal of quadriceps weakness and restoration of quadriceps strength is a clinical priority following all knee injuries and surgeries.…”