Analysis of Functional Movement Screen Forward Lunge and Electromyography of Division 1 Tennis Players

Faculty Sponsor

Kelly Helm


Arts and Sciences



Presentation Type

Poster Presentation

Symposium Date

Spring 5-4-2017


The purpose of this study was to examine quadriceps muscle activation while performing a lunge in Division I tennis players. The question to be answered was, “What impact does the FMS forward lunge have on quadriceps muscle activation of DI tennis players?” Eleven tennis players participated in the study (M=2; F=9). Surface electrodes were attached to the rectus femoris, vastus lateralis, and vastus medialis of each log. Each participant performed three FMS lunges with each leg. Each lunge performance was assessed by a trained observer and recorded. Electromyograms (EMG) of each movement complete with eccentric and concentric phases of each movement, were recorded and analyzed with the Delsys Trigno™ Wireless EMG System. The root mean square (RMS) of the EMG signal was normalized to the peak RMS value detected across all three trials. Mean percent of maximum value contraction (MVC) values during eccentric and concentric contractions were recorded. Of the 11 participants, 10 scored the maximum score of “3” for the FMS lunge, while one scored a “2” where compensation was evident. Analysis of mean EMG scores indicated that the concentric phases displayed greater average muscle activation than the eccentric phase across all subjects.

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