Fig. 1

Representative ultrasound scans of the anterior thigh from the Telemed and Vscan systems (panels 1 and 2 respectively) and vastus lateralis (panels 3 and 4 respectively)
Legend: AMT: anterior thigh muscle thickness, RFMT: rectus femoris muscle thickness, VIMT: vastest intermedius muscle thickness, VLMT: vastus lateralis muscle thicknes, PA: pennation angle.