Table 2. The patient progressed from 10 to 30–40 repetitions of each exercise. Exercise load was based on the patient’s level of perceived exertion.

Rehabilitation program
Gym session	Isometric contraction (5 s)	Quadriceps, hamstring and gluteus
	Co-contraction	knee at 0°, 30° and 90° of flexion
	Mobilization	Active-assisted and active hip-knee-ankle joint mobilization	Knee flexion stopping the movement at 15°, 30°, 60° and 90°	Squat exercises at self-chosen depth
	Standing trials	One-legged standing	Standing with eyes open/closed on firm surface/foam cushion	Gait training on flat surfaces and on stairs
Hydrokinesiotherapy (water level, 1.20 m)	Lower limb exercise	Walking forward, backward and sideways	Skipping exercises	Half-squat
	Balance exercise	Single leg balance	Keeping a board under the foot