Gaze and motor behavior of people with PD during obstacle circumvention
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.gaitpost.2017.09.016 http://hdl.handle.net/11449/163471 |
Resumo: | The aim of this study was to analyze the motor and visual strategies used when walking around (circumvention) an obstacle in patients with Parkinson's disease (PD), in addition to the effects of dopaminergic medication on these strategies. To answer the study question, people with PD (15) and neurologically healthy individuals (15-CG) performed the task of obstacle circumvention during walking (5 trials of unobstructed walking and obstacle circumvention). The following parameters were analyzed: body clearance (longer mediolateral distance during obstacle circumvention of the center of mass-CoM-to the obstacle), horizontal distance (distance of the CoM at the beginning of obstacle circumvention to the obstacle), circumvention strategy (lead-out or lead-in strategy), spatial-temporal of each step, and number of fixations, the mean duration of the fixations and time of fixations according to areas of interest. In addition, the variability of each parameter was calculated. The results indicated that people with PD and the CG presented similar obstacle circumvention strategies (no differences between groups for body clearance, horizontal distance to obstacle, or obstacle circumvention strategy), but the groups used different adjustments to perform these strategies (people with PD performed adjustments during both the approach and circumvention steps and presented greater visual dependence on the obstacle; the CG adjusted only the final step before obstacle circumvention). Moreover, without dopaminergic medication, people with PD reduced body clearance and increased the use of a lead-out strategy, variability in spatial-temporal parameters, and dependency on obstacle information, increasing the risk of contact with the obstacle during circumvention. |
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Gaze and motor behavior of people with PD during obstacle circumventionParkinson's diseaseObstacle circumventionVisual informationDopaminergic medicationThe aim of this study was to analyze the motor and visual strategies used when walking around (circumvention) an obstacle in patients with Parkinson's disease (PD), in addition to the effects of dopaminergic medication on these strategies. To answer the study question, people with PD (15) and neurologically healthy individuals (15-CG) performed the task of obstacle circumvention during walking (5 trials of unobstructed walking and obstacle circumvention). The following parameters were analyzed: body clearance (longer mediolateral distance during obstacle circumvention of the center of mass-CoM-to the obstacle), horizontal distance (distance of the CoM at the beginning of obstacle circumvention to the obstacle), circumvention strategy (lead-out or lead-in strategy), spatial-temporal of each step, and number of fixations, the mean duration of the fixations and time of fixations according to areas of interest. In addition, the variability of each parameter was calculated. The results indicated that people with PD and the CG presented similar obstacle circumvention strategies (no differences between groups for body clearance, horizontal distance to obstacle, or obstacle circumvention strategy), but the groups used different adjustments to perform these strategies (people with PD performed adjustments during both the approach and circumvention steps and presented greater visual dependence on the obstacle; the CG adjusted only the final step before obstacle circumvention). Moreover, without dopaminergic medication, people with PD reduced body clearance and increased the use of a lead-out strategy, variability in spatial-temporal parameters, and dependency on obstacle information, increasing the risk of contact with the obstacle during circumvention.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Sao Paulo State Univ, Human Movement Res Lab MOVI LAB, Campus Bauru, Sao Paulo, BrazilDept Phys Educ, Lab Informat Vis & Act LIVIA, Sao Paulo, BrazilSao Paulo State Univ, Dept Phys Educ, Posture & Gait Studies Lab LEPLO, Campus Rio Claro, Sao Paulo, BrazilWilfrid Laurier Univ, Movement Disorders Res & Rehabil, Waterloo, ON, CanadaSao Paulo State Univ, Human Movement Res Lab MOVI LAB, Campus Bauru, Sao Paulo, BrazilSao Paulo State Univ, Dept Phys Educ, Posture & Gait Studies Lab LEPLO, Campus Rio Claro, Sao Paulo, BrazilFAPESP: 2014/20549-0Elsevier B.V.Universidade Estadual Paulista (Unesp)Dept Phys EducWilfrid Laurier UnivSimieli, Lucas [UNESP]Vitorio, Rodrigo [UNESP]Rodrigues, Sergio Tosi [UNESP]Polastri Zago, Paula Favaro [UNESP]Ignacio Pereira, Vinicius Alota [UNESP]Baptista, Andre Macari [UNESP]Alves de Paula, Pedro Henrique [UNESP]Penedo, Tiago [UNESP]Almeida, Quincy J.Barbieri, Fabio Augusto [UNESP]2018-11-26T17:42:10Z2018-11-26T17:42:10Z2017-10-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article504-509application/pdfhttp://dx.doi.org/10.1016/j.gaitpost.2017.09.016Gait & Posture. Clare: Elsevier Ireland Ltd, v. 58, p. 504-509, 2017.0966-6362http://hdl.handle.net/11449/16347110.1016/j.gaitpost.2017.09.016WOS:000415234200085WOS000415234200085.pdfWeb of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengGait & Posture1,188info:eu-repo/semantics/openAccess2024-01-10T06:25:29Zoai:repositorio.unesp.br:11449/163471Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T22:37:02.461404Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Gaze and motor behavior of people with PD during obstacle circumvention |
title |
Gaze and motor behavior of people with PD during obstacle circumvention |
spellingShingle |
Gaze and motor behavior of people with PD during obstacle circumvention Simieli, Lucas [UNESP] Parkinson's disease Obstacle circumvention Visual information Dopaminergic medication |
title_short |
Gaze and motor behavior of people with PD during obstacle circumvention |
title_full |
Gaze and motor behavior of people with PD during obstacle circumvention |
title_fullStr |
Gaze and motor behavior of people with PD during obstacle circumvention |
title_full_unstemmed |
Gaze and motor behavior of people with PD during obstacle circumvention |
title_sort |
Gaze and motor behavior of people with PD during obstacle circumvention |
author |
Simieli, Lucas [UNESP] |
author_facet |
Simieli, Lucas [UNESP] Vitorio, Rodrigo [UNESP] Rodrigues, Sergio Tosi [UNESP] Polastri Zago, Paula Favaro [UNESP] Ignacio Pereira, Vinicius Alota [UNESP] Baptista, Andre Macari [UNESP] Alves de Paula, Pedro Henrique [UNESP] Penedo, Tiago [UNESP] Almeida, Quincy J. Barbieri, Fabio Augusto [UNESP] |
author_role |
author |
author2 |
Vitorio, Rodrigo [UNESP] Rodrigues, Sergio Tosi [UNESP] Polastri Zago, Paula Favaro [UNESP] Ignacio Pereira, Vinicius Alota [UNESP] Baptista, Andre Macari [UNESP] Alves de Paula, Pedro Henrique [UNESP] Penedo, Tiago [UNESP] Almeida, Quincy J. Barbieri, Fabio Augusto [UNESP] |
author2_role |
author author author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Dept Phys Educ Wilfrid Laurier Univ |
dc.contributor.author.fl_str_mv |
Simieli, Lucas [UNESP] Vitorio, Rodrigo [UNESP] Rodrigues, Sergio Tosi [UNESP] Polastri Zago, Paula Favaro [UNESP] Ignacio Pereira, Vinicius Alota [UNESP] Baptista, Andre Macari [UNESP] Alves de Paula, Pedro Henrique [UNESP] Penedo, Tiago [UNESP] Almeida, Quincy J. Barbieri, Fabio Augusto [UNESP] |
dc.subject.por.fl_str_mv |
Parkinson's disease Obstacle circumvention Visual information Dopaminergic medication |
topic |
Parkinson's disease Obstacle circumvention Visual information Dopaminergic medication |
description |
The aim of this study was to analyze the motor and visual strategies used when walking around (circumvention) an obstacle in patients with Parkinson's disease (PD), in addition to the effects of dopaminergic medication on these strategies. To answer the study question, people with PD (15) and neurologically healthy individuals (15-CG) performed the task of obstacle circumvention during walking (5 trials of unobstructed walking and obstacle circumvention). The following parameters were analyzed: body clearance (longer mediolateral distance during obstacle circumvention of the center of mass-CoM-to the obstacle), horizontal distance (distance of the CoM at the beginning of obstacle circumvention to the obstacle), circumvention strategy (lead-out or lead-in strategy), spatial-temporal of each step, and number of fixations, the mean duration of the fixations and time of fixations according to areas of interest. In addition, the variability of each parameter was calculated. The results indicated that people with PD and the CG presented similar obstacle circumvention strategies (no differences between groups for body clearance, horizontal distance to obstacle, or obstacle circumvention strategy), but the groups used different adjustments to perform these strategies (people with PD performed adjustments during both the approach and circumvention steps and presented greater visual dependence on the obstacle; the CG adjusted only the final step before obstacle circumvention). Moreover, without dopaminergic medication, people with PD reduced body clearance and increased the use of a lead-out strategy, variability in spatial-temporal parameters, and dependency on obstacle information, increasing the risk of contact with the obstacle during circumvention. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-10-01 2018-11-26T17:42:10Z 2018-11-26T17:42:10Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1016/j.gaitpost.2017.09.016 Gait & Posture. Clare: Elsevier Ireland Ltd, v. 58, p. 504-509, 2017. 0966-6362 http://hdl.handle.net/11449/163471 10.1016/j.gaitpost.2017.09.016 WOS:000415234200085 WOS000415234200085.pdf |
url |
http://dx.doi.org/10.1016/j.gaitpost.2017.09.016 http://hdl.handle.net/11449/163471 |
identifier_str_mv |
Gait & Posture. Clare: Elsevier Ireland Ltd, v. 58, p. 504-509, 2017. 0966-6362 10.1016/j.gaitpost.2017.09.016 WOS:000415234200085 WOS000415234200085.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Gait & Posture 1,188 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
504-509 application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier B.V. |
publisher.none.fl_str_mv |
Elsevier B.V. |
dc.source.none.fl_str_mv |
Web of Science reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808129443347038208 |