Clinical Eficacy of Extracorporeal Shock Wave Therapy on Patellar Tendinitis

Inclusion Criteria: 1. Adults aged between 18 and 45 yearsWillingness to sign an informed consent form and ability to cooperate with the treatment and follow-up aspects of this study. 2. Meeting the diagnostic criteria for patellar tendinitis as outlined in "Practical Sports Medicine" (2023 edition) 3. Knee joint pain with a VAS score of ≥3 and ≤7 4. No other orthopedic or neurological conditions that could affect lower limb strength or mobility 5. Willingness to sign an informed consent form and ability to cooperate with the treatment and follow-up aspects of this study Exclusion Criteria: 1. History of knee joint surgery within the past year 2. Presence of knee pain due to other causes, or conditions that affect the knee joint or impact its function (including but not limited to: transient synovitis, bone tuberculosis, bone tumors, acute traumatic arthritis, suppurative arthritis, rheumatoid arthritis, metabolic bone diseases, psoriatic arthritis, gouty arthritis, bone necrosis, ankylosing spondylitis, or active infections) 3. Presence of chronic knee pain caused by other reasons (such as post-herpetic neuralgia, osteoporosis, etc.) 4. Contraindications for shockwave therapy, such as deep venous thrombosis in the lower extremities, bleeding disorders or coagulation dysfunction, pregnancy, cognitive dysfunction, etc. 5. Presence of cancerous tumors, severe bronchiectasis, acute suppurative inflammation, high fever, active pulmonary tuberculosis, heart failure, severe anemia, cerebrovascular diseases, or the presence of a cardiac pacemaker implanted in the body 6. Inability to participate in the trial due to other health issues, such as sudden severe trauma, sudden severe infectious diseases, etc.