From: Effect of shoe heel height on vastus medialis and vastus lateralis electromyographic activity during sit to stand
Mean (Standard Deviation) EMG activity (μV)
Heel Height
VM
VL
Barefoot
84.5 (53.7)
52.5 (28.0)
1 cm
96.4 (55.4)
57.3 (26.5)
3 cm
104.2 (68.2)
61.3 (32.5)
5 cm
102.5 (60.5)
62.0 (29.9)