Presentation 2007-03-15
Selection of leg swing trajectorys based on metabolic cost
Akihiro FUJII, Hiromichi SUENAGA, Yoshiaki TANIAI, Jun NISHII,
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Abstract(in English) When we walk, there are infinite number of possible trajectories for leg swing. How does the brain design the trajectory? We computed the optimal trajectory which minimizes the energy cost during swing and enables smooth toe off and grounding. The obtained trajectory exhibits the following characteristics. (1) In the beginning of swing the foot is thrown backward and raised up. (2) In the latter half of swing the foot is thrown forward and the speed takes its maximum value. (3) In the end of swing the foot is raised a little and then retracted for grounding. These characteristics are well coincident with those observed in human leg swing. These results suggest that the leg swing trajectory be planned so as to minimize the energy cost.
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Keyword(in English) swing phase / walking / optimality / energy cost
Paper # NC2006-154
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Committee NC
Conference Date 2007/3/8(1days)
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Registration To Neurocomputing (NC)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Selection of leg swing trajectorys based on metabolic cost
Sub Title (in English)
Keyword(1) swing phase
Keyword(2) walking
Keyword(3) optimality
Keyword(4) energy cost
1st Author's Name Akihiro FUJII
1st Author's Affiliation Faculty of Science, Yamaguchi University()
2nd Author's Name Hiromichi SUENAGA
2nd Author's Affiliation Faculty of Science, Yamaguchi University
3rd Author's Name Yoshiaki TANIAI
3rd Author's Affiliation Yamaguchi Graduate School of Science and Engineering
4th Author's Name Jun NISHII
4th Author's Affiliation Yamaguchi Graduate School of Science and Engineering
Date 2007-03-15
Paper # NC2006-154
Volume (vol) vol.106
Number (no) 589
Page pp.pp.-
#Pages 6
Date of Issue