Handwriting training in Parkinson's disease: A trade-off between size, speed and fluency
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/10.1371/journal.pone.0190223 http://hdl.handle.net/11449/159981 |
Resumo: | Background In previous work, we found that intensive amplitude training successfully improved micrographia in Parkinson's disease (PD). Handwriting abnormalities in PD also express themselves in stroke duration and writing fluency. It is currently unknown whether training changes these dysgraphic features. Objective To determine the differential effects of amplitude training on various hallmarks of handwriting abnormalities in PD. Methods We randomized 38 right-handed subjects in early to mid-stage of PD into an experimental group (n = 18), receiving training focused at improving writing size during 30 minutes/day, five days/week for six weeks, and a placebo group (n = 20), receiving stretch and relaxation exercises at equal intensity. Writing skills were assessed using a touch-sensitive tablet preand post-training, and after a six-week retention period. Tests encompassed a transfer task, evaluating trained and untrained sequences, and an automatization task, comparing singleand dual-task handwriting. Outcome parameters were stroke duration (s), writing velocity (cm/s) and normalized jerk (i.e. fluency). Results In contrast to the reported positive effects of training on writing size, the current results showed increases in stroke duration and normalized jerk after amplitude training, which were absent in the placebo group. These increases remained after the six-week retention period. In contrast, velocity remained unchanged throughout the study. Conclusion While intensive amplitude training is beneficial to improve writing size in PD, it comes at a cost as fluency and stroke duration deteriorated after training. The findings imply that PD patients can redistribute movement priorities after training within a compromised motor system. |
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spelling |
Handwriting training in Parkinson's disease: A trade-off between size, speed and fluencyBackground In previous work, we found that intensive amplitude training successfully improved micrographia in Parkinson's disease (PD). Handwriting abnormalities in PD also express themselves in stroke duration and writing fluency. It is currently unknown whether training changes these dysgraphic features. Objective To determine the differential effects of amplitude training on various hallmarks of handwriting abnormalities in PD. Methods We randomized 38 right-handed subjects in early to mid-stage of PD into an experimental group (n = 18), receiving training focused at improving writing size during 30 minutes/day, five days/week for six weeks, and a placebo group (n = 20), receiving stretch and relaxation exercises at equal intensity. Writing skills were assessed using a touch-sensitive tablet preand post-training, and after a six-week retention period. Tests encompassed a transfer task, evaluating trained and untrained sequences, and an automatization task, comparing singleand dual-task handwriting. Outcome parameters were stroke duration (s), writing velocity (cm/s) and normalized jerk (i.e. fluency). Results In contrast to the reported positive effects of training on writing size, the current results showed increases in stroke duration and normalized jerk after amplitude training, which were absent in the placebo group. These increases remained after the six-week retention period. In contrast, velocity remained unchanged throughout the study. Conclusion While intensive amplitude training is beneficial to improve writing size in PD, it comes at a cost as fluency and stroke duration deteriorated after training. The findings imply that PD patients can redistribute movement priorities after training within a compromised motor system.Research Foundation Flanders (FWO)KU Leuven research fundKatholieke Univ Leuven, Dept Rehabil Sci, Leuven, BelgiumSao Paulo State Univ, Dept Phys Educ, Sao Paulo, BrazilKatholieke Univ Leuven, Dept Movement Sci, Leuven, BelgiumKatholieke Univ Leuven, Dept Neurosci, Leuven, BelgiumUniv Hosp Leuven, Dept Neurol, Leuven, BelgiumSao Paulo State Univ, Dept Phys Educ, Sao Paulo, BrazilResearch Foundation Flanders (FWO): G.0906.11KU Leuven research fund: PDM/17/197Public Library ScienceKatholieke Univ LeuvenUniversidade Estadual Paulista (Unesp)Univ Hosp LeuvenNackaerts, EvelienBroeder, SannePereira, Marcelo P. [UNESP]Swinnen, Stephan P.Vandenberghe, WimNieuwboer, AliceHeremans, Elke2018-11-26T15:46:00Z2018-11-26T15:46:00Z2017-12-22info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article14application/pdfhttp://dx.doi.org/10.1371/journal.pone.0190223Plos One. San Francisco: Public Library Science, v. 12, n. 12, 14 p., 2017.1932-6203http://hdl.handle.net/11449/15998110.1371/journal.pone.0190223WOS:000418651500044WOS000418651500044.pdfWeb of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPlos One1,164info:eu-repo/semantics/openAccess2023-12-23T06:21:43Zoai:repositorio.unesp.br:11449/159981Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T21:06:47.918146Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Handwriting training in Parkinson's disease: A trade-off between size, speed and fluency |
title |
Handwriting training in Parkinson's disease: A trade-off between size, speed and fluency |
spellingShingle |
Handwriting training in Parkinson's disease: A trade-off between size, speed and fluency Nackaerts, Evelien |
title_short |
Handwriting training in Parkinson's disease: A trade-off between size, speed and fluency |
title_full |
Handwriting training in Parkinson's disease: A trade-off between size, speed and fluency |
title_fullStr |
Handwriting training in Parkinson's disease: A trade-off between size, speed and fluency |
title_full_unstemmed |
Handwriting training in Parkinson's disease: A trade-off between size, speed and fluency |
title_sort |
Handwriting training in Parkinson's disease: A trade-off between size, speed and fluency |
author |
Nackaerts, Evelien |
author_facet |
Nackaerts, Evelien Broeder, Sanne Pereira, Marcelo P. [UNESP] Swinnen, Stephan P. Vandenberghe, Wim Nieuwboer, Alice Heremans, Elke |
author_role |
author |
author2 |
Broeder, Sanne Pereira, Marcelo P. [UNESP] Swinnen, Stephan P. Vandenberghe, Wim Nieuwboer, Alice Heremans, Elke |
author2_role |
author author author author author author |
dc.contributor.none.fl_str_mv |
Katholieke Univ Leuven Universidade Estadual Paulista (Unesp) Univ Hosp Leuven |
dc.contributor.author.fl_str_mv |
Nackaerts, Evelien Broeder, Sanne Pereira, Marcelo P. [UNESP] Swinnen, Stephan P. Vandenberghe, Wim Nieuwboer, Alice Heremans, Elke |
description |
Background In previous work, we found that intensive amplitude training successfully improved micrographia in Parkinson's disease (PD). Handwriting abnormalities in PD also express themselves in stroke duration and writing fluency. It is currently unknown whether training changes these dysgraphic features. Objective To determine the differential effects of amplitude training on various hallmarks of handwriting abnormalities in PD. Methods We randomized 38 right-handed subjects in early to mid-stage of PD into an experimental group (n = 18), receiving training focused at improving writing size during 30 minutes/day, five days/week for six weeks, and a placebo group (n = 20), receiving stretch and relaxation exercises at equal intensity. Writing skills were assessed using a touch-sensitive tablet preand post-training, and after a six-week retention period. Tests encompassed a transfer task, evaluating trained and untrained sequences, and an automatization task, comparing singleand dual-task handwriting. Outcome parameters were stroke duration (s), writing velocity (cm/s) and normalized jerk (i.e. fluency). Results In contrast to the reported positive effects of training on writing size, the current results showed increases in stroke duration and normalized jerk after amplitude training, which were absent in the placebo group. These increases remained after the six-week retention period. In contrast, velocity remained unchanged throughout the study. Conclusion While intensive amplitude training is beneficial to improve writing size in PD, it comes at a cost as fluency and stroke duration deteriorated after training. The findings imply that PD patients can redistribute movement priorities after training within a compromised motor system. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-12-22 2018-11-26T15:46:00Z 2018-11-26T15:46:00Z |
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/10.1371/journal.pone.0190223 Plos One. San Francisco: Public Library Science, v. 12, n. 12, 14 p., 2017. 1932-6203 http://hdl.handle.net/11449/159981 10.1371/journal.pone.0190223 WOS:000418651500044 WOS000418651500044.pdf |
url |
http://dx.doi.org/10.1371/journal.pone.0190223 http://hdl.handle.net/11449/159981 |
identifier_str_mv |
Plos One. San Francisco: Public Library Science, v. 12, n. 12, 14 p., 2017. 1932-6203 10.1371/journal.pone.0190223 WOS:000418651500044 WOS000418651500044.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Plos One 1,164 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
14 application/pdf |
dc.publisher.none.fl_str_mv |
Public Library Science |
publisher.none.fl_str_mv |
Public Library Science |
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 |
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Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
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1808129286091046912 |