{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,16]],"date-time":"2026-06-16T19:56:49Z","timestamp":1781639809720,"version":"3.54.5"},"reference-count":30,"publisher":"SAGE Publications","license":[{"start":{"date-parts":[[2020,1,1]],"date-time":"2020-01-01T00:00:00Z","timestamp":1577836800000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100004208","name":"\u00d6ssur","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100004208","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100009389","name":"Stiftelsen Promobilia","doi-asserted-by":"publisher","award":["F17505"],"award-info":[{"award-number":["F17505"]}],"id":[{"id":"10.13039\/100009389","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Teamolmed"},{"name":"ALF\/LUA Research Grants","award":["ALFGBG-773581"],"award-info":[{"award-number":["ALFGBG-773581"]}]}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Journal of Rehabilitation and Assistive Technologies Engineering"],"published-print":{"date-parts":[[2020,1]]},"abstract":"<jats:sec>\n                    <jats:title>Introduction<\/jats:title>\n                    <jats:p>Walking with a prosthesis while performing secondary tasks increases demand on cognitive resources, compromising balance and gait. This study investigated effects of a secondary task on patterns of brain activity and temporospatial gait parameters in individuals using a prosthesis with or without a microprocessor-controlled prosthetic knee(MPK) and controls.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>A cross-sectional study with repeated measures was performed. Twenty-nine individuals with amputations and 16 controls were recruited. Functional near-infrared spectroscopy was used to evaluate changes in oxygenated and de-oxygenated haemoglobin in the prefrontal cortex and temporospatial variables during single-and dual-task walking.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>Differences in brain activity were observed within the MPK-group and controls without changes in temporospatial parameters. The Trail-Walking test was associated with highest levels of brain activity in both groups. No differences were observed between single- and dual-task walking in the non-MPK-group (p\u2009&gt;\u20090.05). The Non-MPK and the MPK-group recorded higher levels of brain activity than controls during single-task walking and poorer results on temporospatial variables compared to controls.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>For the MPK-group and controls, introduction of a secondary task led to an increase in brain activity. This was not seen in the Non-MPK-group. Significant differences in brain activity were observed in the absence of changes in temporospatial parameters.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/2055668320964109","type":"journal-article","created":{"date-parts":[[2020,11,5]],"date-time":"2020-11-05T05:57:44Z","timestamp":1604555864000},"update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":5,"title":["Cortical brain activity in transfemoral or knee-disarticulation prosthesis users performing single- and dual-task walking activities"],"prefix":"10.1177","volume":"7","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-5360-7776","authenticated-orcid":false,"given":"Saffran","family":"M\u00f6ller","sequence":"first","affiliation":[{"name":"School of Health and Welfare, J\u00f6nk\u00f6ping University, J\u00f6nk\u00f6ping, Sweden"},{"name":"ADULT Research Group, J\u00f6nk\u00f6ping University, J\u00f6nk\u00f6ping, Sweden"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8994-8786","authenticated-orcid":false,"given":"Nerrolyn","family":"Ramstrand","sequence":"additional","affiliation":[{"name":"School of Health and Welfare, J\u00f6nk\u00f6ping University, J\u00f6nk\u00f6ping, Sweden"},{"name":"CHILD Research Group, J\u00f6nk\u00f6ping University, J\u00f6nk\u00f6ping, Sweden"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0149-8149","authenticated-orcid":false,"given":"Kerstin","family":"Hagberg","sequence":"additional","affiliation":[{"name":"Advanced Reconstruction of Extremities, Sahlgrenska University Hospital, Gothenburg, Sweden"},{"name":"Department of Orthopaedics, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Sahlgrenska University Hospital, Gothenburg, Sweden"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0220-6278","authenticated-orcid":false,"given":"David","family":"Rusaw","sequence":"additional","affiliation":[{"name":"School of Health and Welfare, J\u00f6nk\u00f6ping University, J\u00f6nk\u00f6ping, Sweden"},{"name":"ADULT Research Group, J\u00f6nk\u00f6ping University, J\u00f6nk\u00f6ping, Sweden"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2020,11,5]]},"reference":[{"key":"bibr1-2055668320964109","first-page":"126","volume":"35","author":"Lord S and Rochester L.","year":"2007","journal-title":"N Z J Physiother"},{"key":"bibr2-2055668320964109","doi-asserted-by":"publisher","DOI":"10.1037\/a0022929"},{"key":"bibr3-2055668320964109","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0040297"},{"key":"bibr4-2055668320964109","doi-asserted-by":"publisher","DOI":"10.1007\/s11357-014-9693-5"},{"key":"bibr5-2055668320964109","volume-title":"Attention and effort","author":"Kahneman D.","year":"1973"},{"key":"bibr6-2055668320964109","doi-asserted-by":"publisher","DOI":"10.1177\/0309364615596066"},{"key":"bibr7-2055668320964109","doi-asserted-by":"publisher","DOI":"10.1053\/apmr.2001.24295"},{"key":"bibr8-2055668320964109","doi-asserted-by":"publisher","DOI":"10.1177\/0309364618805260"},{"key":"bibr9-2055668320964109","doi-asserted-by":"publisher","DOI":"10.1682\/JRRD.2011.10.0187"},{"key":"bibr10-2055668320964109","doi-asserted-by":"publisher","DOI":"10.1186\/1743-0003-11-85"},{"key":"bibr11-2055668320964109","doi-asserted-by":"publisher","DOI":"10.1016\/j.neuroimage.2015.03.002"},{"key":"bibr12-2055668320964109","doi-asserted-by":"publisher","DOI":"10.1002\/gps.2277"},{"key":"bibr13-2055668320964109","first-page":"206","volume":"48","author":"World Medical Association","year":"2002","journal-title":"J Postgrad Med"},{"key":"bibr14-2055668320964109","doi-asserted-by":"publisher","DOI":"10.1682\/JRRD.2003.11.0167"},{"key":"bibr15-2055668320964109","unstructured":"Howard WC, Rock M. 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