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A Simple State-Determined Model Reproduces Entrainment and Phase-Locking of Human Walking

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dc.contributor.authorAhn, Jooeunen
dc.contributor.authorHogan, Neville-
dc.date.accessioned2017-04-19T00:19:40Z-
dc.date.available2017-12-29T11:15:12Z-
dc.date.issued2012-11-
dc.identifier.citationPLoS ONE Vol.7 No.11, pp. 1-MAX-
dc.identifier.issn1932-6203-
dc.identifier.urihttps://hdl.handle.net/10371/116872-
dc.description.abstractTheoretical studies and robotic experiments have shown that asymptotically stable periodic walking may emerge from nonlinear limit-cycle oscillators in the neuro-mechanical periphery. We recently reported entrainment of human gait to periodic mechanical perturbations with two essential features: 1) entrainment occurred only when the perturbation period was close to the original (preferred) walking period, and 2) entrainment was always accompanied by phase locking so that the perturbation occurred at the end of the double-stance phase. In this study, we show that a highly-simplified state-determined walking model can reproduce several salient nonlinear limit-cycle behaviors of human walking: 1) periodic gait that is 2) asymptotically stable; 3) entrainment to periodic mechanical perturbations only when the perturbation period is close to the model's unperturbed period; and 4) phase-locking to locate the perturbation at the end of double stance. Importantly, this model requires neither supra-spinal control nor an intrinsic self-sustaining neural oscillator such as a rhythmic central pattern generator. Our results suggest that several prominent limit-cycle features of human walking may stem from simple afferent feedback processes without significant involvement of supra-spinal control or a self-sustaining oscillatory neural network.en
dc.description.sponsorshipThis work was supported in part by the New York State Center of Research Excellence (grant number CO19772), the Eric P. and Evelyn E. Newman Fund and by the Samsung Scholarship Foundation. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.-
dc.language.isoen-
dc.publisherPUBLIC LIBRARY SCIENCEen
dc.subjectA Simple State-Determined Model Reproduces Entrainment and Phase-Locking of Human Walkingen
dc.subject복합학en
dc.subjectAnkles-
dc.subjectWalking-
dc.subjectTorque-
dc.subjectBiological locomotion-
dc.subjectLegs-
dc.subjectBehavior-
dc.subjectHip-
dc.subjectKinematics-
dc.titleA Simple State-Determined Model Reproduces Entrainment and Phase-Locking of Human Walkingen
dc.typeArticleen
dc.contributor.AlternativeAuthor안주은-
dc.identifier.doi10.1371/journal.pone.0047963-
dc.description.srndOAIID:RECH_ACHV_DSTSH_NO:T201200286-
dc.description.srndRECH_ACHV_FG:RR00200001-
dc.description.srndADJUST_YN:-
dc.description.srndEMP_ID:A080358-
dc.description.srndCITE_RATE:3.73-
dc.description.srndDEPT_NM:체육교육과-
dc.description.srndEMAIL:ahnjooeun@snu.ac.kr-
dc.description.srndSCOPUS_YN:Y-
dc.description.srndCONFIRM:Y-
dc.identifier.srndT201200286-
Appears in Collections:
College of Education (사범대학)Dept. of Physical Education (체육교육과)Others_체육교육과
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