Reduced Gait Variability and Enhanced Brain Activity in Older Adults With Auditory Cues: A Functional Near-Infrared Spectroscopy Study

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dc.contributor.authorVitorio, Rodrigo [UNESP]
dc.contributor.authorStuart, Samuel
dc.contributor.authorGobbi, Lilian T. B. [UNESP]
dc.contributor.authorRochester, Lynn
dc.contributor.authorAlcock, Lisa
dc.contributor.authorPantall, Annette
dc.contributor.institutionNewcastle University Institute of Ageing
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionThe Newcastle upon Tyne NHS Foundation Trust
dc.date.accessioned2019-10-06T15:24:07Z
dc.date.available2019-10-06T15:24:07Z
dc.date.issued2018-11-01
dc.description.abstractBackground. Aging is associated with declining mobility, which negatively affects quality of life and incurs substantial economic costs. Techniques to maintain safe mobility in older adults are therefore essential. Rhythmic auditory cueing (RAC) can improve walking patterns in older adults. However, the neural correlates associated with RAC, how they are influenced by repeated exposure and their relationships with gait response, cognitive function, and depressive symptoms are unclear. Objectives. This study aimed to investigate the effects of RAC during walking on cortical activation and the relationship between RAC-related cortical changes and cognitive function, depressive symptoms, and gait response. Methods. Seventeen young adults and eighteen older adults walked on a motorized treadmill for 5 minutes (5 trials with alternating 30-second blocks of usual walking and RAC walking). Changes in oxygenated hemoglobin (HbO 2 ) in the frontal cortex were recorded using functional near-infrared spectroscopy. Cognitive domains were assessed through validated tests. A triaxial accelerometer measured gait parameters. Results. Gait variability decreased and prefrontal HbO 2 levels increased during cued walking relative to usual walking. Older adults showed greater HbO 2 levels in multiple motor regions during cued walking although the response reduced with repeated exposure. In older adults, lower depression scores, higher cognitive functioning, and reduced gait variability were linked with increased HbO 2 levels during RAC walking. Conclusion. These findings suggest that walking improves with RAC in older adults and is achieved through increased activity in multiple cortical areas. The cortical response decline with repeated exposure indicates older adults’ ability to adapt to a new task.en
dc.description.affiliationInstitute of Neuroscience Newcastle University Institute of Ageing
dc.description.affiliationSao Paulo State University (UNESP) Institute of Biosciences, Campus Rio Claro
dc.description.affiliationThe Newcastle upon Tyne NHS Foundation Trust
dc.description.affiliationUnespSao Paulo State University (UNESP) Institute of Biosciences, Campus Rio Claro
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipNational Institute for Health Research
dc.description.sponsorshipIdFAPESP: 2016/22750-0
dc.format.extent976-987
dc.identifierhttp://dx.doi.org/10.1177/1545968318805159
dc.identifier.citationNeurorehabilitation and Neural Repair, v. 32, n. 11, p. 976-987, 2018.
dc.identifier.doi10.1177/1545968318805159
dc.identifier.issn1552-6844
dc.identifier.issn1545-9683
dc.identifier.scopus2-s2.0-85056433592
dc.identifier.urihttp://hdl.handle.net/11449/187056
dc.language.isoeng
dc.relation.ispartofNeurorehabilitation and Neural Repair
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectauditory cueing
dc.subjectcognition
dc.subjectcortex
dc.subjectfNIRS
dc.subjectwalking
dc.titleReduced Gait Variability and Enhanced Brain Activity in Older Adults With Auditory Cues: A Functional Near-Infrared Spectroscopy Studyen
dc.typeArtigo
unesp.author.orcid0000-0001-8504-2047[6]

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