[Morphological manifestations of primate adaptation to orthograde statics and upright posture].

Using lower primates (rhesus-monkeys) who were experimentally transformed to bipeds, we examined morphological signs of their musculo-skeletal adaptation to the upright walking pattern. It was found that the bipeds developed typical characteristics of the upright posture: complete erectness of the torso and legs and noticeable enhancement of lumbar lordosis. The maximum deviation of the lumbar arch in the bipeds (10.