Arroyo - Morales et al. (3) demonstrated a significant decrease of vastus medialis EMG during 40 minutes of massage on the quadriceps. (journals.lww.com)
so true, esp strong vastus medialis to stabilize knee and help prevent the dreaded internal rotation of femur in stance. (naturalrunningcenter.com)
Your inner thigh is made up of a muscle called vastus medialis, while your outer thigh is called the vastus lateralis. (toneitup.com)