Specific buttocks get a thorough analysis in this study:
“A subject-specific model of human buttocks and thighs in a seated posture,” Rami M.A. Al-Dirini, Matthew Reed, Gunther Paul, Gunther and Dominic Thewlis, in 7th Australasian Congress on Applied Mechanics, ACAM 7, 9-12 December 2012, University of Adelaide, Adelaide, SA.
“MR image processing was conducted to both the left and the right sides of the model due to the intended asymmetric posture of the volunteer during the MR measurements. The presented subject-specific, three-dimensional model of the buttocks and thighs will add value to optimisation cycles in automotive seat development”
(Thanks to investigator Neil Martin for bringing this to our attention.)