{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,9]],"date-time":"2026-10-09T20:03:14Z","timestamp":1791576194702,"version":"4.3.4"},"reference-count":37,"publisher":"The Royal Society","issue":"145","license":[{"start":{"date-parts":[[2018,8,1]],"date-time":"2018-08-01T00:00:00Z","timestamp":1533081600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/royalsociety.org\/journals\/ethics-policies\/data-sharing-mining\/"}],"funder":[{"DOI":"10.13039\/100000738","name":"U.S. Department of Veterans Affairs","doi-asserted-by":"publisher","award":["CDA2 A7972-W"],"award-info":[{"award-number":["CDA2 A7972-W"]}],"id":[{"id":"10.13039\/100000738","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["royalsocietypublishing.org"],"crossmark-restriction":true},"short-container-title":["J. R. Soc. Interface."],"published-print":{"date-parts":[[2018,8]]},"abstract":"<jats:p>\n            People with transtibial amputations (TTAs) who use a powered ankle\u2013foot prosthesis have equivalent metabolic costs and step-to-step transition work for level-ground walking over a range of speeds compared to non-amputees. The effects of using a powered compared to passive-elastic prosthesis for sloped walking are unknown. We sought to understand how the use of passive-elastic compared to powered ankle\u2013foot prostheses affect metabolic cost and step-to-step transition work during sloped walking. Ten people (six M, four F) with TTAs walked 1.25 m s\n            <jats:sup>\u22121<\/jats:sup>\n            at 0\u00b0, \u00b13\u00b0, \u00b16\u00b0 and \u00b19\u00b0 using their own passive-elastic prosthesis and the BiOM powered ankle\u2013foot prosthesis, while we measured metabolic rates, kinematics and kinetics. We calculated net metabolic power, individual leg step-to-step transition work and individual leg net work symmetry. The net metabolic power was 5% lower during walking on +3\u00b0 and +6\u00b0 uphill slopes when subjects used the BiOM compared to their passive-elastic prosthesis (\n            <jats:italic>p<\/jats:italic>\n            &lt; 0.05). The use of the BiOM compared to a passive-elastic prosthesis did not affect individual leg step-to-step transition work (\n            <jats:italic>p<\/jats:italic>\n            &gt; 0.05), but did improve individual leg net work symmetry on +6\u00b0 and +9\u00b0 uphill slopes (\n            <jats:italic>p<\/jats:italic>\n            &lt; 0.01). People with TTAs who use a powered ankle\u2013foot prosthesis have the potential to reduce metabolic costs and increase symmetry during walking on uphill slopes.\n          <\/jats:p>","DOI":"10.1098\/rsif.2018.0442","type":"journal-article","created":{"date-parts":[[2018,8,29]],"date-time":"2018-08-29T12:20:58Z","timestamp":1535545258000},"page":"20180442","update-policy":"https:\/\/doi.org\/10.1098\/crossmark-policy","source":"Crossref","is-referenced-by-count":63,"title":["Use of a powered ankle\u2013foot prosthesis reduces the metabolic cost of uphill walking and improves leg work symmetry in people with transtibial amputations"],"prefix":"10.1098","volume":"15","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2284-9366","authenticated-orcid":false,"given":"Jana R.","family":"Montgomery","sequence":"first","affiliation":[{"name":"Department of Integrative Physiology, University of Colorado Boulder, 1725 Pleasant Street, Boulder, CO 80309, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alena M.","family":"Grabowski","sequence":"additional","affiliation":[{"name":"Department of Integrative Physiology, University of Colorado Boulder, 1725 Pleasant Street, Boulder, CO 80309, USA"},{"name":"Department of Veterans Affairs Eastern Colorado Healthcare Services, Denver, CO, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"175","published-online":{"date-parts":[[2018,8,29]]},"reference":[{"key":"e_1_3_6_2_2","doi-asserted-by":"publisher","DOI":"10.1152\/japplphysiol.00734.2004"},{"key":"e_1_3_6_3_2","doi-asserted-by":"publisher","DOI":"10.1152\/japplphysiol.00670.2002"},{"key":"e_1_3_6_4_2","doi-asserted-by":"publisher","DOI":"10.1098\/rsif.2011.0182"},{"key":"e_1_3_6_5_2","doi-asserted-by":"crossref","first-page":"35","DOI":"10.3109\/03093649709164528","article-title":"The life style of young persons after lower limb amputation caused by injury","volume":"21","author":"Burger H","year":"1997","journal-title":"Prosthet. 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