Rehabilitation and Therapy Commons^™

Emg Activation Of The Vastus Medialis Oblique And Vastus Lateralis During Four Rehabilitative Exercises, Debra Kushion, Jessica Rheaume, Kim Kopchitz, Stephen Glass, Gordon Alderink, Jann-Huei Jinn

Stephen C Glass

The purpose of this study was to compare four common rehabilitation exercises used in physical therapy clinics for activating the vastus medialis oblique (VMO) and vastus lateralis (VL). Thirty-four subjects, aged 22-28 years, without patellofemoral pain syndrome (PFPS) (18 females and 16 males) were recruited. Subjects performed four exercises—straight leg raise with neutral and externally rotated hip positions (SLRN, SLRER), and short arc quad with neutral and externally rotated hip positions (SAQN, SAQER). The integrated electromyographic (iEMG) activity of the VMO and VL and were recorded, with means of the VMO, VL and VMO/VL compared across exercises. No significant difference …