1. Onishi, 2002: For BF (longhead), electrodes were placed midway laterally on the posterior
part of the thigh after having differentiated short and long heads by palpation of muscle
contraction at the ischial attachment
2. Lieberman, 2006: For GMAX, electrodes were placed over the center of the muscle belly
approximately 5–6 cm below its proximal origin
3. McHugh, 2002: For RF, electrodes were placed midway along a line between the anterior
superior iliac spine and superior border of the patella
4. McHugh, 2002; Fukanaga, 1997: For VL, electrodes were placed four finger breadths
proximal to the superior lateral border of the patella and were oriented at 20° angle
relative to a reference line drawn between the anterior superior iliac spine and superior
lateral border of the patella to approximate the muscle fiber pennation angle
5. Sanderson, 2006: For GAS and SOL, electrodes were fixed longitudinally on the distal half
of the two muscles
6. Sanderson, 2006: For GAS and SOL, electrodes were fixed longitudinally on the distal half
of the two muscles
BF: