Cargando…

Motor impairment and its relationship to fitness in children

OBJECTIVES: The aim of this work was to explore the physiological and perceptual limits to exercise in children with varying degrees of motor impairment, and the relationships to measures of health. DESIGN AND METHODS: In a group comparison design, 35 boys aged 12–15 years completed the Movement ABC...

Descripción completa

Detalles Bibliográficos
Autores principales: Morris, Martyn, Dawes, Helen, Howells, Ken, Janssen, Roel
Formato: Online Artículo Texto
Lenguaje:English
Publicado: BMJ Publishing Group 2013
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3710987/
https://www.ncbi.nlm.nih.gov/pubmed/23847266
http://dx.doi.org/10.1136/bmjopen-2013-002909
_version_ 1782276922026229760
author Morris, Martyn
Dawes, Helen
Howells, Ken
Janssen, Roel
author_facet Morris, Martyn
Dawes, Helen
Howells, Ken
Janssen, Roel
author_sort Morris, Martyn
collection PubMed
description OBJECTIVES: The aim of this work was to explore the physiological and perceptual limits to exercise in children with varying degrees of motor impairment, and the relationships to measures of health. DESIGN AND METHODS: In a group comparison design, 35 boys aged 12–15 years completed the Movement ABC test for the assessment of motor impairment, followed by an incremental cycle ergometer test to exhaustion for the assessment of maximal oxygen uptake (VO(2peak)), respiratory exchange ratio (RER), heart rate (HR) and rating of perceived exertion (RPE). Ten participants classified as having either high or no motor impairment also performed a maximal voluntary isometric contraction (MVIC) for the assessment of lower limb extensor strength. RESULTS: 18 boys were classified as having high motor impairment. There was a significant difference in [Image: see text] peak (34.9 vs 48.5 mL kg/min), [Image: see text] workload (12.5 vs 10.0 mL W), maximal HR (176 vs 188 bpm), maximal oxygen pulse (12.1 vs 15.9 mL beat) and MVIC (5.7 vs 9.1 Nm kg) between the high and non-motor impaired participants, respectively, (p<0.05). There was no significant difference in the RER or RPE between groups. CONCLUSIONS: When performing cycling ergometry, perceived exertion was not a limiting factor in children with high motor impairment. The lower maximal HR, coupled with reduced movement efficiency and muscle strength reported in this group, suggests that exercise is limited by impairment at the muscular level. This finding was supported by high RER values despite low maximal HR values attained at exercise cessation and reduced maximal strength. Perception of effort is not heightened in children with high motor impairment and future-exercise interventions should be focused on improving muscular condition in these participants to enable them to be better prepared to engage in physical activity for health.
format Online
Article
Text
id pubmed-3710987
institution National Center for Biotechnology Information
language English
publishDate 2013
publisher BMJ Publishing Group
record_format MEDLINE/PubMed
spelling pubmed-37109872013-07-15 Motor impairment and its relationship to fitness in children Morris, Martyn Dawes, Helen Howells, Ken Janssen, Roel BMJ Open Paediatrics OBJECTIVES: The aim of this work was to explore the physiological and perceptual limits to exercise in children with varying degrees of motor impairment, and the relationships to measures of health. DESIGN AND METHODS: In a group comparison design, 35 boys aged 12–15 years completed the Movement ABC test for the assessment of motor impairment, followed by an incremental cycle ergometer test to exhaustion for the assessment of maximal oxygen uptake (VO(2peak)), respiratory exchange ratio (RER), heart rate (HR) and rating of perceived exertion (RPE). Ten participants classified as having either high or no motor impairment also performed a maximal voluntary isometric contraction (MVIC) for the assessment of lower limb extensor strength. RESULTS: 18 boys were classified as having high motor impairment. There was a significant difference in [Image: see text] peak (34.9 vs 48.5 mL kg/min), [Image: see text] workload (12.5 vs 10.0 mL W), maximal HR (176 vs 188 bpm), maximal oxygen pulse (12.1 vs 15.9 mL beat) and MVIC (5.7 vs 9.1 Nm kg) between the high and non-motor impaired participants, respectively, (p<0.05). There was no significant difference in the RER or RPE between groups. CONCLUSIONS: When performing cycling ergometry, perceived exertion was not a limiting factor in children with high motor impairment. The lower maximal HR, coupled with reduced movement efficiency and muscle strength reported in this group, suggests that exercise is limited by impairment at the muscular level. This finding was supported by high RER values despite low maximal HR values attained at exercise cessation and reduced maximal strength. Perception of effort is not heightened in children with high motor impairment and future-exercise interventions should be focused on improving muscular condition in these participants to enable them to be better prepared to engage in physical activity for health. BMJ Publishing Group 2013-07-11 /pmc/articles/PMC3710987/ /pubmed/23847266 http://dx.doi.org/10.1136/bmjopen-2013-002909 Text en Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://group.bmj.com/group/rights-licensing/permissions This is an Open Access article distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 3.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Paediatrics
Morris, Martyn
Dawes, Helen
Howells, Ken
Janssen, Roel
Motor impairment and its relationship to fitness in children
title Motor impairment and its relationship to fitness in children
title_full Motor impairment and its relationship to fitness in children
title_fullStr Motor impairment and its relationship to fitness in children
title_full_unstemmed Motor impairment and its relationship to fitness in children
title_short Motor impairment and its relationship to fitness in children
title_sort motor impairment and its relationship to fitness in children
topic Paediatrics
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3710987/
https://www.ncbi.nlm.nih.gov/pubmed/23847266
http://dx.doi.org/10.1136/bmjopen-2013-002909
work_keys_str_mv AT morrismartyn motorimpairmentanditsrelationshiptofitnessinchildren
AT daweshelen motorimpairmentanditsrelationshiptofitnessinchildren
AT howellsken motorimpairmentanditsrelationshiptofitnessinchildren
AT janssenroel motorimpairmentanditsrelationshiptofitnessinchildren