Results 181 to 190 of about 3,830 (237)
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Cursoriality in bipedal archosaurs
Nature, 2000Modern birds have markedly foreshortened tails and their body mass is centred anteriorly, near the wings. To provide stability during powered flight, the avian centre of mass is far from the pelvis, which poses potential balance problems for cursorial birds.
T D, Jones +4 more
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Palaeoenvironments and the origin of hominid bipedalism
Historical Biology, 2018B. Senut +3 more
exaly +2 more sources
Philosophical Transactions of the Royal Society B: Biological Sciences, 2015 Daniel Schmitt
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The synthesis of bipedal locomotion
Journal of Biomechanics, 1972Abstract This paper presents a mathematical model for the synthesis and control of bipedal walkers. The model deals with the three-dimensional motion of a symmetrical rigid body with massless extensible legs. Body trajectories and controls are synthesized for optimum stability and energy expenditure.
M A, Townsend, A, Seireg
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The pelvis in the bipedalism of primates
American Journal of Physical Anthropology, 1968AbstractThe pelvis in the “Normalstellung” tends in man to tilt backwards. In primates, the pelvis shows a marked tendency to tilt into quadruped posture. In both the bodyweight intensifies those tendencies. Consequently, assuming erect posture and maintaining bipedal balance encounter, in primates, constant resistance from pelvis and bodyweight.In ...
C A, Snell, H W, Donhuysen
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Journal of Hypertension, 2019
: In quadrupeds, the arterial baroreflex has dominance in the reflex homeostatic responses, which protect against haemorrhage. In humans, it is the low pressure cardiopulmonary reflex, which protects against the analogous cardiovascular challenge of ...
M. Esler +5 more
semanticscholar +1 more source
: In quadrupeds, the arterial baroreflex has dominance in the reflex homeostatic responses, which protect against haemorrhage. In humans, it is the low pressure cardiopulmonary reflex, which protects against the analogous cardiovascular challenge of ...
M. Esler +5 more
semanticscholar +1 more source
2007
BIP is an anthropomorphic walking robot designed for the study of both human and artificial bipedal locomotion. This paper presents an experimental approach to the problem of designing and executing a pattern of gaits on a dedicated 2-legged machine.
Christine Azevedo +3 more
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BIP is an anthropomorphic walking robot designed for the study of both human and artificial bipedal locomotion. This paper presents an experimental approach to the problem of designing and executing a pattern of gaits on a dedicated 2-legged machine.
Christine Azevedo +3 more
openaire +1 more source
Proceedings of the Royal Society of London. B. Biological Sciences, 1990
Abstract Human-like running is a natural dynamic mode of a simple mechanical biped. Such a machine consists of two telescoping legs with linear springs, connected by a hip joint with a torsional spring. It will run passively; no pattern of forcing is required to generate the gait.
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Abstract Human-like running is a natural dynamic mode of a simple mechanical biped. Such a machine consists of two telescoping legs with linear springs, connected by a hip joint with a torsional spring. It will run passively; no pattern of forcing is required to generate the gait.
openaire +2 more sources
Human Evolution, 2004
The long-unresolved and much publicized puzzle of how human ancestors could have ventured upon habitual bipedalism without making themselves highly vulnerable to predation derives from a misunderstanding of the principles upon which predator-prey relations work.
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The long-unresolved and much publicized puzzle of how human ancestors could have ventured upon habitual bipedalism without making themselves highly vulnerable to predation derives from a misunderstanding of the principles upon which predator-prey relations work.
openaire +1 more source