Effects of High-intensity Continuous Ultrasound on Infrapatellar Fat Pad Stiffness and Gliding in Healthy Participants: A Randomized, Single-blind, Placebo-controlled Crossover Trial

Ultrasound therapy effectively treats a joint range of motion limitation and pain originating from soft tissue in knee osteoarthritis (OA). Few interventional studies have focused on the infrapatellar fat pad (IFP), and the effects of high-intensity continuous ultrasound (HICUS) on IFP stiffness and gliding have not been investigated. Therefore, we aimed to determine the effects of HICUS on IFP stiffness and gliding.