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Symmetrical gaits of primates
Author(s) -
Hildebrand Milton
Publication year - 1967
Publication title -
american journal of physical anthropology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.146
H-Index - 119
eISSN - 1096-8644
pISSN - 0002-9483
DOI - 10.1002/ajpa.1330260203
Subject(s) - diagonal , gait , sequence (biology) , macaque , anatomy , physical medicine and rehabilitation , mathematics , biology , medicine , geometry , neuroscience , genetics
Walking and symmetrical running gaits of 26 genera of primates are analyzed using numerical and graphical methods described previously. The raw data are 1701 feet of 16 mm motion picture film mostly exposed at 64 frames per second. Adult monkeys and apes usually use the walking trot or diagonal‐sequence walks. Individual monkeys occasionally use lateral‐sequence walks resembling those that are usual for human infants. Human children moving on hands and feet use gaits ranging from the walking pace through the lateral‐sequence walks to the walking trot. An infant macaque studied from age 17 hours to 96 days first walked with a lateral‐sequence, diagonal‐couplets gait and then gradually shifted to the diagonal‐sequence, diagonal‐couplets gait of the adult. Few non‐primates use the diagonal‐sequence walks which are typical of primates. Typical support sequences are figured. Relative placement of feet and consequent slight asymmetry are described.