...François Druelle; Gilles Berillon The olive baboon is described as a committed quadrupedal primate. However, available data show that they actually use a variety of locomotor and postural modes. Bipedalism is observed occasionally but spontaneously in captivity and in the wild. As observed in other...

.... In quadrupedal locomotion there were small but potentially important changes associated with load carriage leading to a more upright trunk and a shift in shoulder excursion. These changes were exacerbated as locomotion shifts from quadrupedal to tripedal and bipedal gaits when carrying more awkward loads...

...Y. Li; R.H. Crompton; R.McN. Alexander; M.M. Günther; W.J. Wang Bipedal walking by common chimpanzees is known to differ both kinematically and kinetically from human bipedalism, in particular by the adoption of flexed-knee gaits and characteristically single-peaked vertical ground reaction force...

...Masato Nakatsukasa; Sugio Hayama; Holger Preuschoft The postcranial skeleton of a Japanese macaque that had been trained for bipedalism over an 11-year period was studied. Considerable modifications in the hindlimb bones caused by bipedal postural and locomotor behaviour were observed. Changes...

...Tasuku Kimura Bipedal walking was studied in chimpanzees between 1 and 19 years of age by measuring the external energy generated by the movement of the centre of gravity of the body. The ‘recovery’ of external energy in infant chimpanzees less than five years of age is smaller than in juveniles...

...Randall L. Susman; Jack T. Stern, Jr.; William L. Jungers Numerous studies of the locomotor skeleton of the Hadar hominids have revealed traits indicative of both arboreal climbing/suspension and terrestrial bipedalism. These earliest known hominids must have devoted part of their activities...

... relate to the ability of the anterior of the gluteus medius-minimus muscle complex to produce internal rotation. Combined with abduction, internal rotation is a fundamental motor element necessary for efficient bipedal gait; consequently, the muscle complex had important survival value. In the evolution...