Quantification of temporal parameters for tripedalism

Arito Yozu, Dai Owaki, Masashi Hamada, Takuya Sasaki, Qi An, Tetsuro Funato, Nobuhiko Haga

研究成果: Conference contribution


Bipedalism is one of the distinctive features of humans. However, humans in certain conditions use tripedalism for their locomotion. Patients who cannot bear their weight on their own legs or patients with balance disorders often use a cane. Temporal parameters have been defined for bipedalism, while they have not been defined for tripedalism. Therefore, in clinical rehabilitation, evaluation of patients’ gait using a cane is still very much a qualitative issue. In this study, we propose how we can define the temporal parameters for tripedalism. We calculated six quantitative numbers: (1) gait cycle of leg 1, (2) lag of foot strike between leg 1 and leg 2, (3) lag of foot strike between leg 1 and leg 3, (4) stance phase of leg 1, (5) stance phase of leg 2, and (6) stance phase of leg 3. With a set of these six elements, the foot strike and foot-off pattern of the three legs is uniquely determined. Because these elements are measurable quantitatively, we are able to express the tripedal gait in a quantitative manner with this number set. We call this number set “gait matrix”. The application of this gait matrix may be useful for evaluating patients’ gait using a cane in rehabilitation.

ホスト出版物のタイトルIntelligent Autonomous Systems 14 - Proceedings of the 14th International Conference IAS-14
編集者Weidong Chen, Hesheng Wang, Koh Hosoda, Emanuele Menegatti, Masahiro Shimizu
出版社Springer Verlag
出版ステータスPublished - 2017
イベント14th International Conference on Intelligent Autonomous Systems, IAS 2016 - Shanghai, China
継続期間: 2016 7月 32016 7月 7


名前Advances in Intelligent Systems and Computing


Other14th International Conference on Intelligent Autonomous Systems, IAS 2016
City Shanghai

ASJC Scopus subject areas

  • 制御およびシステム工学
  • コンピュータ サイエンス(全般)


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