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Based on a consideration of the evolutionary and physiologic development of the human foot, this book brings some entirely new conceptions. Not only is this study a scientific contribution to the foot and its mechanics, but it adds a chapter to the biophysical aspects of locomotion (hitherto a neglected subject). The origin of the foot is traced from primitive life through the several geological periods, and the structural and functional changes which have taken place with the attainment of terrestrial existence and the erect posture are shown. The compactly designed and rigidly arched foot of man is an outcome of life on the ground and is developed from a flexible grasping structure as flat as the human hand. Morton believes that foot disorders are due not primarily to muscle imbalance or weakness but rather to factors which impair the structural stability of the organ, such as shortened first metatarsals or
The Human Foot. Am J Dis Child. 1936;51(5):1249. doi:10.1001/archpedi.1936.01970170245017
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