{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,20]],"date-time":"2026-03-20T13:43:57Z","timestamp":1774014237217,"version":"3.50.1"},"reference-count":21,"publisher":"Elsevier BV","license":[{"start":{"date-parts":[[2026,5,1]],"date-time":"2026-05-01T00:00:00Z","timestamp":1777593600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"},{"start":{"date-parts":[[2026,5,1]],"date-time":"2026-05-01T00:00:00Z","timestamp":1777593600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/legal\/tdmrep-license"},{"start":{"date-parts":[[2026,2,3]],"date-time":"2026-02-03T00:00:00Z","timestamp":1770076800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/100018693","name":"Horizon 2020","doi-asserted-by":"publisher","award":["780871"],"award-info":[{"award-number":["780871"]}],"id":[{"id":"10.13039\/100018693","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100010661","name":"Horizon 2020 Framework Programme","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100010661","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001721","name":"Rijksuniversiteit Groningen","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100001721","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["clinicalkey.com","clinicalkey.com.au","clinicalkey.es","clinicalkey.fr","clinicalkey.jp","elsevier.com","sciencedirect.com"],"crossmark-restriction":true},"short-container-title":["Gait & Posture"],"published-print":{"date-parts":[[2026,5]]},"DOI":"10.1016\/j.gaitpost.2026.110111","type":"journal-article","created":{"date-parts":[[2026,2,3]],"date-time":"2026-02-03T15:58:20Z","timestamp":1770134300000},"page":"110111","update-policy":"https:\/\/doi.org\/10.1016\/elsevier_cm_policy","source":"Crossref","is-referenced-by-count":0,"special_numbering":"C","title":["Correlation between metabolic cost and perceived comfort during human-in-the-loop optimization of a prosthetic foot"],"prefix":"10.1016","volume":"126","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-5089-0123","authenticated-orcid":false,"given":"Thijs","family":"Tankink","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Han","family":"Houdijk","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Raffaella","family":"Carloni","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Juha M.","family":"Hijmans","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"78","reference":[{"issue":"8031","key":"10.1016\/j.gaitpost.2026.110111_bib1","doi-asserted-by":"crossref","first-page":"779","DOI":"10.1038\/s41586-024-07697-2","article-title":"On human-in-the-loop optimization of human-robot interaction","volume":"633","author":"Slade","year":"2024","journal-title":"Nature"},{"issue":"1","key":"10.1016\/j.gaitpost.2026.110111_bib2","article-title":"Reducing the energy cost of walking with low assistance levels through optimized hip flexion assistance from a soft exosuit","volume":"12","author":"Kim","year":"2022","journal-title":"Sci. Rep."},{"issue":"6344","key":"10.1016\/j.gaitpost.2026.110111_bib3","doi-asserted-by":"crossref","first-page":"1280","DOI":"10.1126\/science.aal5054","article-title":"Human-in-the-loop optimization of exoskeleton assistance during walking","volume":"356","author":"Zhang","year":"2017","journal-title":"Science (New York, N.Y.)"},{"issue":"12","key":"10.1016\/j.gaitpost.2026.110111_bib4","doi-asserted-by":"crossref","first-page":"7483","DOI":"10.1109\/TCYB.2022.3224895","article-title":"Human-in-the-loop optimization of wearable robotic devices to improve human-robot interaction: a systematic review","volume":"53","author":"Diaz","year":"2023","journal-title":"IEEE Trans. Cybern."},{"issue":"11","key":"10.1016\/j.gaitpost.2026.110111_bib5","doi-asserted-by":"crossref","first-page":"1406","DOI":"10.1152\/japplphysiol.00445.2014","article-title":"Estimating instantaneous energetic cost during non-steady-state gait","volume":"117","author":"Selinger","year":"2014","journal-title":"J. Appl. Physiol. (Bethesda, Md.: 1985)"},{"issue":"12","key":"10.1016\/j.gaitpost.2026.110111_bib6","doi-asserted-by":"crossref","first-page":"1098","DOI":"10.1055\/a-1373-5770","article-title":"Estimation of metabolic energy expenditure during short walking bouts","volume":"42","author":"Blokland","year":"2021","journal-title":"Int. J. Sports Med."},{"key":"10.1016\/j.gaitpost.2026.110111_bib7","doi-asserted-by":"crossref","first-page":"192","DOI":"10.1016\/j.gaitpost.2025.07.208","article-title":"\u2606 Accurate steady-state VO2 estimation with less metabolic data using calibrated patient-specific Bayesian regression models","volume":"121","author":"Ries","year":"2025","journal-title":"Gait Posture"},{"issue":"64","key":"10.1016\/j.gaitpost.2026.110111_bib8","doi-asserted-by":"crossref","DOI":"10.1126\/scirobotics.abj3487","article-title":"The role of user preference in the customized control of robotic exoskeletons","volume":"7","author":"Ingraham","year":"2022","journal-title":"Sci. Robot."},{"issue":"9","key":"10.1016\/j.gaitpost.2026.110111_bib9","doi-asserted-by":"crossref","first-page":"1714","DOI":"10.1016\/j.apmr.2013.02.016","article-title":"Relation between aerobic capacity and walking ability in older adults with a lower-limb amputation","volume":"94","author":"Wezenberg","year":"2013","journal-title":"Arch. Phys. Med. Rehabil."},{"issue":"5","key":"10.1016\/j.gaitpost.2026.110111_bib10","doi-asserted-by":"crossref","first-page":"417","DOI":"10.1097\/PXR.0000000000000035","article-title":"General estimates of the energy cost of walking in people with different levels and causes of lower-limb amputation: a systematic review and meta-analysis","volume":"45","author":"Ettema","year":"2021","journal-title":"Prosthet. Orthot. Int."},{"key":"10.1016\/j.gaitpost.2026.110111_bib11","doi-asserted-by":"crossref","DOI":"10.1109\/TNSRE.2025.3590581","article-title":"Human-in-the-loop optimization of the stiffness and alignment of a prosthetic foot to reduce the metabolic cost of walking","author":"Tankink","year":"2025","journal-title":"IEEE Trans. Neural Syst. Rehabil. Eng."},{"issue":"4","key":"10.1016\/j.gaitpost.2026.110111_bib12","doi-asserted-by":"crossref","first-page":"726","DOI":"10.3390\/prosthesis6040051","article-title":"Parametric design of an advanced multi-axial energy-storing-and-releasing ankle\u2013foot prosthesis","volume":"6","author":"Leopaldi","year":"2024","journal-title":"Prosthesis"},{"key":"10.1016\/j.gaitpost.2026.110111_bib13","article-title":"The MyFlex-\u03b6 foot: a variable stiffness ESR ankle-foot prosthesis","volume":"1","author":"Tabucol","year":"2025","journal-title":"IEEE Trans. Neural Syst. Rehabil. Eng."},{"key":"10.1016\/j.gaitpost.2026.110111_bib14","doi-asserted-by":"crossref","first-page":"97544","DOI":"10.1109\/ACCESS.2024.3427391","article-title":"Design and mechanical characterization of a variable stiffness ESR foot prosthesis","volume":"12","author":"Tabucol","year":"2024","journal-title":"IEEE Access"},{"issue":"5","key":"10.1016\/j.gaitpost.2026.110111_bib15","doi-asserted-by":"crossref","DOI":"10.1098\/rsos.202020","article-title":"Shortcomings of human-in-the-loop optimization of an ankle-foot prosthesis emulator: a case series","volume":"8","author":"Welker","year":"2021","journal-title":"R. Soc. Open Sci."},{"key":"10.1016\/j.gaitpost.2026.110111_bib16","doi-asserted-by":"crossref","first-page":"75","DOI":"10.1007\/3-540-32494-1_4","article-title":"The CMA evolution strategy: a comparing review","author":"Hansen","year":"2006","journal-title":"Towards a new evolutionary computation"},{"issue":"22","key":"10.1016\/j.gaitpost.2026.110111_bib17","doi-asserted-by":"crossref","first-page":"1278","DOI":"10.1080\/09638280310001603983","article-title":"Prosthetic socket fit comfort score","volume":"25","author":"Hanspal","year":"2003","journal-title":"Disabil. Rehabil."},{"issue":"1","key":"10.1016\/j.gaitpost.2026.110111_bib18","doi-asserted-by":"crossref","first-page":"45","DOI":"10.1017\/S0012162207000114.x","article-title":"Reproducibility evaluation of gross and net walking efficiency in children with cerebral palsy","volume":"49","author":"Brehm","year":"2007","journal-title":"Dev. Med. Child Neurol."},{"issue":"3","key":"10.1016\/j.gaitpost.2026.110111_bib19","doi-asserted-by":"crossref","first-page":"443","DOI":"10.1111\/j.1365-201X.1987.tb10613.x","article-title":"The relationship between the respiratory quotient and the energy equivalent of oxygen during simultaneous glucose and lipid oxidation and lipogenesis","volume":"129","author":"Garby","year":"1987","journal-title":"Acta Physiol. Scand."},{"key":"10.1016\/j.gaitpost.2026.110111_bib20","doi-asserted-by":"crossref","first-page":"456","DOI":"10.3389\/fpsyg.2017.00456","article-title":"Repeated measures correlation","volume":"8","author":"Bakdash","year":"2017","journal-title":"Front. Psychol."},{"key":"10.1016\/j.gaitpost.2026.110111_bib21","doi-asserted-by":"crossref","DOI":"10.1016\/j.cobme.2023.100487","article-title":"Leveraging user preference in the design and evaluation of lower-limb exoskeletons and prostheses","author":"Ingraham","year":"2023","journal-title":"Curr. Opin. Biomed. Eng."}],"container-title":["Gait & Posture"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S0966636226000196?httpAccept=text\/xml","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S0966636226000196?httpAccept=text\/plain","content-type":"text\/plain","content-version":"vor","intended-application":"text-mining"}],"deposited":{"date-parts":[[2026,3,20]],"date-time":"2026-03-20T11:12:23Z","timestamp":1774005143000},"score":1,"resource":{"primary":{"URL":"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/S0966636226000196"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,5]]},"references-count":21,"alternative-id":["S0966636226000196"],"URL":"https:\/\/doi.org\/10.1016\/j.gaitpost.2026.110111","relation":{},"ISSN":["0966-6362"],"issn-type":[{"value":"0966-6362","type":"print"}],"subject":[],"published":{"date-parts":[[2026,5]]},"assertion":[{"value":"Elsevier","name":"publisher","label":"This article is maintained by"},{"value":"Correlation between metabolic cost and perceived comfort during human-in-the-loop optimization of a prosthetic foot","name":"articletitle","label":"Article Title"},{"value":"Gait & Posture","name":"journaltitle","label":"Journal Title"},{"value":"https:\/\/doi.org\/10.1016\/j.gaitpost.2026.110111","name":"articlelink","label":"CrossRef DOI link to publisher maintained version"},{"value":"article","name":"content_type","label":"Content Type"},{"value":"\u00a9 2026 The Authors. Published by Elsevier B.V.","name":"copyright","label":"Copyright"}],"article-number":"110111"}}