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Correlation between...
Correlation between musculoskeletal structure of the hand and primate locomotion: Morphometric and mechanical analysis in prehension using the cross- and triple-ratios
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- Tamagawa, T. (author)
- Shiga University of Medical Science
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- Lundh, Torbjörn, 1965 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för matematiska vetenskaper,Department of Mathematical Sciences,Chalmers tekniska högskola,Chalmers University of Technology
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- Shigetoshi, K. (author)
- Shiga University of Medical Science
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- Nitta, N. (author)
- Shiga University of Medical Science
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- Ushio, N. (author)
- Shiga University of Medical Science
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- Inubushi, T. (author)
- Shiga University of Medical Science
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- Shiino, A. (author)
- Shiga University of Medical Science
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- Karlsson, Anders, 1968 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för matematiska vetenskaper,Department of Mathematical Sciences,Chalmers tekniska högskola,Chalmers University of Technology
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- Inoue, T. (author)
- Shimane University
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- Mere, Y. (author)
- Shiga University of Medical Science
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- Hino, K. (author)
- Shiga University of Medical Science
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- Komori, M. (author)
- Shiga University of Medical Science
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- Morikawa, S. (author)
- Shiga University of Medical Science
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- Sawajiri, S. (author)
- Shiga University of Medical Science
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- Naka, S. (author)
- Shiga University of Medical Science
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- Honma, S. (author)
- Kanazawa Medical University
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- Kimura, T. (author)
- Shiga University of Medical Science
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- Uchimura, Y. (author)
- Shiga University of Medical Science
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- Imai, S. (author)
- Shiga University of Medical Science
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Egi, N. (author)
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- Otani, H. (author)
- Shimane University
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- Udagawa, Jun, 1967 (author)
- Shiga University of Medical Science
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(creator_code:org_t)
- 2020-05-04
- 2020
- English.
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In: PLoS ONE. - : Public Library of Science (PLoS). - 1932-6203. ; 15:5
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Abstract
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- Biometric ratios of the relative length of the rays in the hand have been analyzed between primate species in the light of their hand function or phylogeny. However, how relative lengths among phalanges are mechanically linked to the grasping function of primates with different locomotor behaviors remains unclear. To clarify this, we calculated cross and triple-ratios, which are related to the torque distribution, and the torque generation mode at different joint angles using the lengths of the phalanges and metacarpal bones in 52 primates belonging to 25 species. The torque exerted on the finger joint and traction force of the flexor tendons necessary for a cylindrical grip and a suspensory hand posture were calculated using the moment arm of flexor tendons measured on magnetic resonance images, and were compared among Hylobates spp., Ateles sp., and Papio hamadryas. Finally, the torques calculated from the model were validated by a mechanical study detecting the force exerted on the phalanx by pulling the digital flexor muscles during suspension in these three species. Canonical discriminant analysis of cross and triple-ratios classified primates almost in accordance with their current classification based on locomotor behavior. The traction force was markedly reduced with flexion of the MCP joint parallel to the torque in brachiating primates; this was notably lower in the terrestrial quadrupedal primates than in the arboreal primates at mild flexion. Our mechanical study supported these features in the torque and traction force generation efficiencies. Our results suggest that suspensory or terrestrial quadrupedal primates have hand structures that can exert more torque at a suspensory posture, or palmigrade and digitigrade locomotion, respectively. Furthermore, our study suggests availability of the cross and triple-ratios as one of the indicators to estimate the hand function from the skeletal structure.
Subject headings
- NATURVETENSKAP -- Matematik (hsv//swe)
- NATURAL SCIENCES -- Mathematics (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Annan medicin och hälsovetenskap -- Övrig annan medicin och hälsovetenskap (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Other Medical and Health Sciences -- Other Medical and Health Sciences not elsewhere specified (hsv//eng)
- NATURVETENSKAP -- Biologi -- Annan biologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Other Biological Topics (hsv//eng)
- NATURVETENSKAP -- Matematik -- Annan matematik (hsv//swe)
- NATURAL SCIENCES -- Mathematics -- Other Mathematics (hsv//eng)
Keyword
- positional behavior
- diversity
- patterns
- Science & Technology - Other Topics
Publication and Content Type
- ref (subject category)
- art (subject category)
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Tamagawa, T.
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Lundh, Torbjörn, ...
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Shigetoshi, K.
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Nitta, N.
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Ushio, N.
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Inubushi, T.
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Shiino, A.
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Karlsson, Anders ...
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Inoue, T.
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Mere, Y.
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Hino, K.
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Komori, M.
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Morikawa, S.
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Sawajiri, S.
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Naka, S.
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Honma, S.
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Kimura, T.
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Uchimura, Y.
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Imai, S.
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Egi, N.
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Otani, H.
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Udagawa, Jun, 19 ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Mathematics
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MEDICAL AND HEAL ...
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and Other Medical an ...
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and Other Medical an ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Biological Scien ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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PLoS ONE
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University of Gothenburg
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Chalmers University of Technology