Influence of Elastic Tape on Activation of the Quadriceps Muscle During Selected Resisted and Weight Bearing Exercises

Changes Based on Duration of Tape Application, Direction of Kinesio Tape Application, Healthy Subjects

This cross over design study will be used to determine the influence of elastic kinesiology tape on the speed and amplitude of quadriceps activation (anterior thigh) during selected resisted and weight bearing exercises.

Objective: This cross over design study will be used to determine the influence of elastic kinesiology tape on the speed and amplitude of quadriceps activation (anterior thigh) during selected resisted and weight bearing exercises. Background: Compliant tape, such as KiniseoⓇ Tape (KT), is highly elastic and claimed by the manufacturer to mimic skin. It is commonly used by physical therapists and sports medicine practitioners to treat musculoskeletal conditions and to enhance physical performance. The creators of KT teach a variety of applications techniques to affect the underlying musculature. Current theory regarding elastic tape application suggests that if the tape is applied over a muscle from the proximal to distal attachments, it will facilitate the underlying muscle while applying the tape from distal to proximal will inhibit the musculature.1 While studies have investigated the effect of elastic tape on muscle activation, few studies to date have compared the direction of application on muscle activation.2-7 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.

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