Knee Isometric Program (KIP) Home Exercise Programs (HEP) Physical Therapy (PT) Study

Inclusion Criteria: * Accept all provisions of the study and agree to complete the program in its entirety * Age between 18-65 * Complaint of anterior knee pain for at least 4 weeks, but no more than 12 months * Prescribed referral for physical therapy for their knee(s) from one of the investigators Exclusion Criteria: * Potential participant does not agree to comply with study protocols or does not wish to be subjected to a random group allocation * Any neurological or degenerative musculoskeletal condition involving the lower extremities * Ages outside of 18-65 * Surgical history or fracture within the last 12 months on the affected extremity(ies) * Currently participating in a structured strength training program * Inability to access clinic for data collection or follow-up sessions * Significant anatomical anomaly or limb alignment disorder as diagnosed by medical professional (femoral anteversion/retroversion, patella alta/baja, varus/valgus deformities, patella deformities/fractures, osteotomy procedures, limb lengthening procedures) * Significant cartilage damage as diagnosed by medical professional (grade 3+ chondral defects of the femur or patella) * Any other condition that limits full weight bearing of the affected lower extremity(ies) * Vulnerable populations