Table 2. Exercise protocol of the control group. Standard Muscle Exercise Phase 1 (up to 6th week) Phase 2 Load 50-60% of one repetition (rep) maximum 60-80% of one rep maximum Hip-adduction, proximal (femur) lever, standing-up 2 to 4 sets 12 to 20 reps 2 to 4 sets 8 to 12 reps/set Hip-abduction with proximal (femur) lever, standing-up 2 to 4 sets 12 to 20 reps 2 to 4 sets 8 to 12 reps/set Hip-extension with proximal (femur) lever, standing –up 2 to 4 sets 12 to 20 reps 2 to 4 sets 8 to 12 reps/set Hip-flexion with proximal (femur) lever, standing-up 2 to 4 sets 12 to 20 reps 2 to 4 sets 8 to 12 reps/set Leg Curl with proximal (femur) lever, supine /sitting 2 to 3 sets 15 to 30 reps 2 to 4 sets 15 to 20 reps/set Leg Press, knee-extension, supine 2 to 3 sets 15 to 30 reps 2 to 4 sets 15 to 20 reps/set Calf Rise, plantar flexion, standing-up 2 to 4 sets 12 to 20 reps 2 to 4 sets 8 to 12 reps/set Balance Exercise Standing on one leg 10 reps each side 10 reps each side Standing on one leg on a wobble board 5 reps each side 10 reps each side Step ups 2 min 2 min