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Evaluation of speed-accuracy trade-off in a computer task in individuals with cerebral palsy: a cross-sectional study
BACKGROUND: Individuals with Cerebral Palsy (CP) present with sensorimotor dysfunction which make the control and execution of movements difficult. This study aimed to verify the speed-accuracy trade-off in individuals with CP. METHODS: Forty eight individuals with CP and 48 with typical development...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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BioMed Central
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5530971/ https://www.ncbi.nlm.nih.gov/pubmed/28750603 http://dx.doi.org/10.1186/s12883-017-0920-4 |
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author | Fernani, Deborah Cristina Gonçalves Luiz Prado, Maria Tereza Artero da Silva, Talita Dias Massetti, Thais de Abreu, Luiz Carlos Magalhães, Fernando Henrique Dawes, Helen de Mello Monteiro, Carlos Bandeira |
author_facet | Fernani, Deborah Cristina Gonçalves Luiz Prado, Maria Tereza Artero da Silva, Talita Dias Massetti, Thais de Abreu, Luiz Carlos Magalhães, Fernando Henrique Dawes, Helen de Mello Monteiro, Carlos Bandeira |
author_sort | Fernani, Deborah Cristina Gonçalves Luiz |
collection | PubMed |
description | BACKGROUND: Individuals with Cerebral Palsy (CP) present with sensorimotor dysfunction which make the control and execution of movements difficult. This study aimed to verify the speed-accuracy trade-off in individuals with CP. METHODS: Forty eight individuals with CP and 48 with typical development (TD) were evaluated (32 females and 64 males with a mean age of 15.02 ± 6.37 years: minimum 7 and maximum 30 years). Participants performed the “Fitts’ Reciprocal Aiming Task v.1.0 (Horizontal)” on a computer with different sizes and distance targets, composed by progressive indices of difficulty (IDs): ID2, ID4a and ID4b. RESULTS: There were no statistical differences between the groups in relation to the slope of the curve (b1) and dispersion of the movement time (r(2)). However, the intercept (b0) values presented significant differences (F(1.95) = 11.3; p = .001]), with greater movement time in the CP group compared to the TD group. It means that for individuals with CP, regardless of index difficulty, found the task more difficult than for TD participants. Considering CP and TD groups, speed-accuracy trade-off was found when using different indices of difficulty (ID2 and ID4). However, when the same index of difficulty was used with a larger target and longer distance (ID4a) or with a narrow target and shorter distance (ID4b), only individuals with CP had more difficulty performing the tasks involving smaller targets. Marginally significant inverse correlations were identified between the values of b1 and age (r = −0.119, p = .052) and between r(2) and Gross Motor Function Classification System (r = −0.280, p = .054), which did not occur with the Manual Ability Classification System. CONCLUSION: We conclude that the individuals with CP presented greater difficulty when the target was smaller and demanded more accuracy, and less difficulty when the task demanded speed. It is suggested that treatments should target tasks with accuracy demands, that could help in daily life tasks, since it is an element that is generally not considered by professionals during therapy. TRIAL REGISTRATION: ClinicalTrials.gov, NCT03002285, retrospectively registered on 20 Dec 2016. |
format | Online Article Text |
id | pubmed-5530971 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | BioMed Central |
record_format | MEDLINE/PubMed |
spelling | pubmed-55309712017-08-02 Evaluation of speed-accuracy trade-off in a computer task in individuals with cerebral palsy: a cross-sectional study Fernani, Deborah Cristina Gonçalves Luiz Prado, Maria Tereza Artero da Silva, Talita Dias Massetti, Thais de Abreu, Luiz Carlos Magalhães, Fernando Henrique Dawes, Helen de Mello Monteiro, Carlos Bandeira BMC Neurol Research Article BACKGROUND: Individuals with Cerebral Palsy (CP) present with sensorimotor dysfunction which make the control and execution of movements difficult. This study aimed to verify the speed-accuracy trade-off in individuals with CP. METHODS: Forty eight individuals with CP and 48 with typical development (TD) were evaluated (32 females and 64 males with a mean age of 15.02 ± 6.37 years: minimum 7 and maximum 30 years). Participants performed the “Fitts’ Reciprocal Aiming Task v.1.0 (Horizontal)” on a computer with different sizes and distance targets, composed by progressive indices of difficulty (IDs): ID2, ID4a and ID4b. RESULTS: There were no statistical differences between the groups in relation to the slope of the curve (b1) and dispersion of the movement time (r(2)). However, the intercept (b0) values presented significant differences (F(1.95) = 11.3; p = .001]), with greater movement time in the CP group compared to the TD group. It means that for individuals with CP, regardless of index difficulty, found the task more difficult than for TD participants. Considering CP and TD groups, speed-accuracy trade-off was found when using different indices of difficulty (ID2 and ID4). However, when the same index of difficulty was used with a larger target and longer distance (ID4a) or with a narrow target and shorter distance (ID4b), only individuals with CP had more difficulty performing the tasks involving smaller targets. Marginally significant inverse correlations were identified between the values of b1 and age (r = −0.119, p = .052) and between r(2) and Gross Motor Function Classification System (r = −0.280, p = .054), which did not occur with the Manual Ability Classification System. CONCLUSION: We conclude that the individuals with CP presented greater difficulty when the target was smaller and demanded more accuracy, and less difficulty when the task demanded speed. It is suggested that treatments should target tasks with accuracy demands, that could help in daily life tasks, since it is an element that is generally not considered by professionals during therapy. TRIAL REGISTRATION: ClinicalTrials.gov, NCT03002285, retrospectively registered on 20 Dec 2016. BioMed Central 2017-07-27 /pmc/articles/PMC5530971/ /pubmed/28750603 http://dx.doi.org/10.1186/s12883-017-0920-4 Text en © The Author(s). 2017 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated. |
spellingShingle | Research Article Fernani, Deborah Cristina Gonçalves Luiz Prado, Maria Tereza Artero da Silva, Talita Dias Massetti, Thais de Abreu, Luiz Carlos Magalhães, Fernando Henrique Dawes, Helen de Mello Monteiro, Carlos Bandeira Evaluation of speed-accuracy trade-off in a computer task in individuals with cerebral palsy: a cross-sectional study |
title | Evaluation of speed-accuracy trade-off in a computer task in individuals with cerebral palsy: a cross-sectional study |
title_full | Evaluation of speed-accuracy trade-off in a computer task in individuals with cerebral palsy: a cross-sectional study |
title_fullStr | Evaluation of speed-accuracy trade-off in a computer task in individuals with cerebral palsy: a cross-sectional study |
title_full_unstemmed | Evaluation of speed-accuracy trade-off in a computer task in individuals with cerebral palsy: a cross-sectional study |
title_short | Evaluation of speed-accuracy trade-off in a computer task in individuals with cerebral palsy: a cross-sectional study |
title_sort | evaluation of speed-accuracy trade-off in a computer task in individuals with cerebral palsy: a cross-sectional study |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5530971/ https://www.ncbi.nlm.nih.gov/pubmed/28750603 http://dx.doi.org/10.1186/s12883-017-0920-4 |
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