Quadriceps Strengthening At Different Angles in Patellofemoral Pain

"Warm-up: Start with 5 minutes of stationary biking. Then, proceed with two sets of 30-second dynamic stretches targeting the quadriceps, hamstrings, calf muscles, and adductors, followed by static stretching for the abductors.~Strengthening: Complete 3 sets of 8-12 repetitions for each exercise, aiming for a perceived effort level on the Borg scale between 60% and 80%. Increase the load by 2%-10% when the patient can perform 14 or more repetitions in the final set while maintaining the Borg scale between 60% and 80%.~For the Leg Extension Machine, maintain a range of motion between 90 to 45 degrees. During Squats and Bulgarian Squats, aim for a range of motion between 0 to 45 degrees."

"Warm-up: 5 minutes of stationary biking. Next, perform two sets of 30-second stretches for the quadriceps, hamstrings, calf muscles, adductors and abductors hip.~Strengthening: Patients will complete 3 sets of 8 to 12 repetitions for each exercise, aiming for a perceived effort level of 60% to 80% on the Borg scale. Load will be increased by 2% to 10% when patients can complete 14 or more repetitions in the final set while maintaining the Borg scale between 60% and 80%.~Quadriceps strengthening will be performed at the patient's maximum range guided by symptoms, with pain intensity capped at 5 points on the NPRS. The patient-guided range will be adjusted based on pain intensity, comfort, and patient response, using a shared decision-making approach. The goal is to maintain exercises at the maximum possible range of motion.~For the Leg Extension Machine, Squats, and Bulgarian Squats, the range of motion will be guided by the patient's pain tolerance."