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Least-squares linear regressions were conducted on the MTP moment versus angle curve to determine joint stiffness during early toe rocker and late toe rocker. Multilevel linear models were used to test for statistically significant differences between conditions. Early toe rocker stiffness was positive, while late toe rocker was negative. Both early toe rocker and late toe rocker stiffness increased in magnitude significantly with speed. This study establishes baseline characteristics of MTP joint stiffness in healthy walking, which previously had not been examined through a range of controlled walking speeds. This information can be used in the future as design criteria for orthotic and prosthetic ankle and ankle\u2013foot devices that can imitate, support, and facilitate natural human foot motion during walking better than existing devices.<\/jats:p>","DOI":"10.1123\/jab.2021-0385","type":"journal-article","created":{"date-parts":[[2022,9,12]],"date-time":"2022-09-12T11:54:35Z","timestamp":1662983675000},"page":"320-327","source":"Crossref","is-referenced-by-count":4,"title":["Metatarsophalangeal Joint Dynamic Stiffness During Toe Rocker Changes With Walking Speed"],"prefix":"10.1123","volume":"38","author":[{"given":"Luke","family":"Nigro","sequence":"first","affiliation":[{"name":"Department of Mechanical Engineering, University of Delaware, Newark, DE, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Elisa S.","family":"Arch","sequence":"additional","affiliation":[{"name":"Department of Kinesiology & Applied Physiology, University of Delaware, Newark, DE, USA"},{"name":"Biomechanics and Movement Science Program, University of Delaware, Newark, DE, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"100","reference":[{"issue":"3","key":"r1","series-title":"Gait Posture","doi-asserted-by":"publisher","first-page":"224","DOI":"10.1016\/0966-6362(95)01045-9","article-title":"Gait characterization via dynamic joint stiffness","volume":"4","author":"Davis RB","year":"1996","unstructured":"Davis RB, Deluca PA. 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