This 2020 randomized controlled trial evaluated the comparative efficacy of low-energy (0.12 mJ/mm²) versus medium-energy (0.24 mJ/mm²) radial extracorporeal shock wave therapy (rESWT) in 60 patients with knee osteoarthritis (KOA). Participants received 2,000 impulses once weekly for four weeks. Outcomes assessed included pain (VAS), function (WOMAC), and range of motion