Figure 1From: Electromyographic analysis of the three subdivisions of gluteus medius during weight-bearing exercises Electrode placements for the posterior, middle and anterior subdivisions of gluteus medius. X marks the landmarks use to locate the electrodes; ASIS, iliac crest, greater trochanter, and the posterior ilium. The posterior ilium landmark used was 20% of the distance between the iliac crest and L4-L5 interspace.Back to article page