Alternative Text for Figure 1:

This figure shows the loading apparatus (upper row) and typical saggital MRI images of buttock-thigh structure (lower row). The loading apparatus was used to image the buttock-thigh structure in real sitting configuration. The apparatus consisted of a rubber cushion, foam support, and a rectangular air bladder. The air bladder was placed between the cushion and buttocks. Two belts were used to tie the cushion and bladder tightly against the buttock-thigh. Left figures show the apparatus (upper) and a corresponding typical MRI image (lower) in “No Load” state in which the bladder was deflated. Right figures show the apparatus (upper) and a corresponding typical MRI image (lower) when the buttock-thigh was loaded by inflating the bladder to simulate sitting load.