Methods and Measures: Healthy subjects between 18-35 years old will be recruited from the Upstate Medical University community via email and word of mouth. Potential participants will report to the Institute for Human Performance and will be asked to complete all documentation including informed consent and a health-screening questionnaire. If eligible, qualified participants will perform 2 functional jumping exercises (vertical jump and single-leg triple hop for distance) 8 and isokinetic knee flexion and extension at 60 degrees/sec and 120 degrees/sec using the Biodex System 3 Pro Dynamometer (Biodex Medical Systems, Shirley, NY). The Biodex isokinetic machine has been shown to be a reliable and valid source of measuring peak torque, position and velocity.9 Surface electromyography (EMG) recordings will be collected from the vastus medialis and vastus lateralis during isokinetic testing. Testing will occur over four sessions. In the first session, baseline measurements and measurements immediately after KT application will be collected. In the second session, the participant will be retested after wearing the KT for up to two days (48 hours). This process will be repeated one week later during sessions three and four with KT applied in the opposite direction of the initial testing condition. KT application direction and the order of activities will be randomized for each participant.