Reliability and Validity of a New Ankle Dorsiflexion Lunge Test Using a Level Laser.

The study aims to find validity and intra-inter examiner reliability of the Lever Laser Lunge Test (LLLT). This is a new way to measure ankle range of motion during weight bearing, instead of classical dorsiflexion lunge test The study wants to assume that LLLT is comparable to the traditional test but more efficient because it could be used in different settings. To reach this goal, these two non-invasive tests will be performed to measure the amount of movement of the ankle joint in healthy teenage basketball players. Data will be statistically compared and studied.