Immediate Effects of Ankle Joint Mobilization on Jump Performance in Healthy University Students

Vertical jump performance is an important indicator of lower‐extremity explosive powerand neuromuscular function. Adequate ankle dorsiflexion range of motion plays a criticalrole in force production, movement efficiency, and landing mechanics during jumpingtasks. Previous studies have demonstrated that ankle joint mobilization can improvedorsiflexion range of motion through mechanical and neurophysiological mechanisms.However, limited evidence exists regarding whether these immediate improvements in anklemobility translate into enhanced jump performance in healthy individuals.This randomized controlled study aims to evaluate the immediate effects of ankle jointmobilization on countermovement jump performance and ankle dorsiflexion range of motionin healthy university students.Approximately 50 healthy university students will be recruited and randomly allocated toeither an ankle joint mobilization group or a sham mobilization group (25 participantsper group). Before the intervention, all participants will undergo assessments ofcountermovement jump performance using the My Jump Lab mobile application and ankledorsiflexion range of motion using the weight‐bearing lunge test with a digitalinclinometer.Participants in the intervention group will receive ankle joint mobilization using theMobilization with Movement (MWM) technique. Participants in the sham group will bepositioned similarly and perform the same movement without the application of therapeuticposterior talar glide. Immediately after the intervention, all outcome measures will berepeated using the same standardized procedures.The primary outcome will be countermovement jump performance, while the secondary outcomewill be ankle dorsiflexion range of motion. The results of this study may provideevidence regarding the immediate effects of ankle joint mobilization on functionalperformance and may contribute to the development of evidence‐based manual therapyinterventions for improving lower‐extremity performance