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Therefore, this research was focused on determining the effectiveness of sEMG-B in the muscles responsible for the extension of the hand and the dorsiflexion of the foot in post-stroke elderly subjects. Forty subjects with stroke-derived hemiplegia were randomly divided into intervention or control groups. The intervention consisted of 12 sEMG-B sessions. The control group underwent 12 weeks (24 sessions) of conventional physiotherapy. Muscle activity test and functionality (Barthel index) were determined. Attending to the results obtained, the intervention group showed a higher increase in the average EMG activity of the extensor muscle of the hand and in the dorsal flexion of the foot than the control group (<jats:italic>p<\/jats:italic>\u2009&lt;\u20090.001 in both cases), which was associated with an increase in the patients\u2019 Barthel index score (<jats:italic>p<\/jats:italic>\u2009=\u20090.006); In addition, Fugl-Meyer test revealed higher effectiveness in the lower limb (<jats:italic>p<\/jats:italic>\u2009=\u20090.007). Thus, the sEMG-B seems to be more effective than conventional physiotherapy, and the use of this technology may be essential for improving muscular disorders in elderly patients with physical disabilities resulting from a stroke.<\/jats:p>","DOI":"10.1038\/s41598-019-49720-x","type":"journal-article","created":{"date-parts":[[2019,9,11]],"date-time":"2019-09-11T10:03:02Z","timestamp":1568196182000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":30,"title":["The effect of surface electromyography biofeedback on the activity of extensor and dorsiflexor muscles in elderly adults: a randomized trial"],"prefix":"10.1038","volume":"9","author":[{"given":"Ana Bel\u00e9n","family":"G\u00e1mez","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9255-4630","authenticated-orcid":false,"given":"Juan Jos\u00e9","family":"Hernandez Morante","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jos\u00e9 Luis","family":"Mart\u00ednez Gil","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Francisco","family":"Esparza","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3307-1326","authenticated-orcid":false,"given":"Carlos Manuel","family":"Mart\u00ednez","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2019,9,11]]},"reference":[{"key":"49720_CR1","doi-asserted-by":"publisher","first-page":"e391","DOI":"10.1016\/j.lpm.2016.10.003","volume":"45","author":"Y B\u00e9jot","year":"2016","unstructured":"B\u00e9jot, Y., Bailly, H., Durier, J. & Giroud, M. 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