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Article: Physical activity measurement using MTI (actigraph) among children with cerebral palsy
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TitlePhysical activity measurement using MTI (actigraph) among children with cerebral palsy
 
AuthorsCapio, CM1
Sit, CH1
Abernethy, B1
 
KeywordsCerebral palsy
Child
Heart rate
Rehabilitation
 
Issue Date2010
 
PublisherWB Saunders Co. The Journal's web site is located at http://www.elsevier.com/locate/apmr
 
CitationArchives Of Physical Medicine And Rehabilitation, 2010, v. 91 n. 8, p. 1283-1290 [How to Cite?]
DOI: http://dx.doi.org/10.1016/j.apmr.2010.04.026
 
AbstractObjective: To investigate the validity of MTI accelerometer as a physical activity (PA) measurement instrument for children with cerebral palsy (CP). Design: Participants were classified within Gross Motor Function Classification System I to III and took part in 2 activity sessions: (1) a structured activity protocol with increasing intensities and (2) a free play session. Concurrent measurements of activity counts, heart rate, and observed physical activity were performed. Setting: Data were collected on normal school days in special schools within the participants' 30-minute break period. Participants: Convenience sample of children with CP (N=31; 17 girls, 14 boys) age between 6 and 14 years (mean ± SD, 9.71±2.52y). Interventions: Not applicable. Main Outcome Measures: MTI measured activity counts, a monitoring device measured heart rate, and the System for Observing Fitness Instruction Time (SOFIT) was used for direct PA observation. Results: There were strong relationships between MTI and SOFIT (r=.75; R 2=.56; P<.001) and heart rate monitor (HRM) and SOFIT (r=.65; R 2=.43; P<.001) data in structured activities, but the difference between these 2 correlation coefficients was not significant (P=.46). In free play activities, the association between MTI and SOFIT data (r=.67; R 2=.45; P<.001) was significantly stronger (P=.01) than that between heart rate and SOFIT data (r=.14; R 2=.02; P<.001) . Bland-Altman plots showed better agreement between observed SOFIT and MTI-predicted SOFIT data than observed SOFIT and HRM-predicted SOFIT data from the linear regression analysis. Conclusions: The findings suggest that the MTI appears to be a valid instrument for measuring raw activity volume among children with CP and is suitable for use in studies attempting to characterize the PA of this population. © 2010 American Congress of Rehabilitation Medicine.
 
ISSN0003-9993
2012 Impact Factor: 2.358
2012 SCImago Journal Rankings: 1.046
 
DOIhttp://dx.doi.org/10.1016/j.apmr.2010.04.026
 
ISI Accession Number IDWOS:000281178900019
 
ReferencesReferences in Scopus
 
DC FieldValue
dc.contributor.authorCapio, CM
 
dc.contributor.authorSit, CH
 
dc.contributor.authorAbernethy, B
 
dc.date.accessioned2010-10-31T11:44:00Z
 
dc.date.available2010-10-31T11:44:00Z
 
dc.date.issued2010
 
dc.description.abstractObjective: To investigate the validity of MTI accelerometer as a physical activity (PA) measurement instrument for children with cerebral palsy (CP). Design: Participants were classified within Gross Motor Function Classification System I to III and took part in 2 activity sessions: (1) a structured activity protocol with increasing intensities and (2) a free play session. Concurrent measurements of activity counts, heart rate, and observed physical activity were performed. Setting: Data were collected on normal school days in special schools within the participants' 30-minute break period. Participants: Convenience sample of children with CP (N=31; 17 girls, 14 boys) age between 6 and 14 years (mean ± SD, 9.71±2.52y). Interventions: Not applicable. Main Outcome Measures: MTI measured activity counts, a monitoring device measured heart rate, and the System for Observing Fitness Instruction Time (SOFIT) was used for direct PA observation. Results: There were strong relationships between MTI and SOFIT (r=.75; R 2=.56; P<.001) and heart rate monitor (HRM) and SOFIT (r=.65; R 2=.43; P<.001) data in structured activities, but the difference between these 2 correlation coefficients was not significant (P=.46). In free play activities, the association between MTI and SOFIT data (r=.67; R 2=.45; P<.001) was significantly stronger (P=.01) than that between heart rate and SOFIT data (r=.14; R 2=.02; P<.001) . Bland-Altman plots showed better agreement between observed SOFIT and MTI-predicted SOFIT data than observed SOFIT and HRM-predicted SOFIT data from the linear regression analysis. Conclusions: The findings suggest that the MTI appears to be a valid instrument for measuring raw activity volume among children with CP and is suitable for use in studies attempting to characterize the PA of this population. © 2010 American Congress of Rehabilitation Medicine.
 
dc.description.natureLink_to_subscribed_fulltext
 
dc.identifier.citationArchives Of Physical Medicine And Rehabilitation, 2010, v. 91 n. 8, p. 1283-1290 [How to Cite?]
DOI: http://dx.doi.org/10.1016/j.apmr.2010.04.026
 
dc.identifier.doihttp://dx.doi.org/10.1016/j.apmr.2010.04.026
 
dc.identifier.epage1290
 
dc.identifier.hkuros175355
 
dc.identifier.hkuros182599
 
dc.identifier.hkuros185745
 
dc.identifier.isiWOS:000281178900019
 
dc.identifier.issn0003-9993
2012 Impact Factor: 2.358
2012 SCImago Journal Rankings: 1.046
 
dc.identifier.issue8
 
dc.identifier.openurl
 
dc.identifier.pmid20684912
 
dc.identifier.scopuseid_2-s2.0-77955601272
 
dc.identifier.spage1283
 
dc.identifier.urihttp://hdl.handle.net/10722/125653
 
dc.identifier.volume91
 
dc.languageeng
 
dc.publisherWB Saunders Co. The Journal's web site is located at http://www.elsevier.com/locate/apmr
 
dc.publisher.placeUnited States
 
dc.relation.ispartofArchives of Physical Medicine and Rehabilitation
 
dc.relation.referencesReferences in Scopus
 
dc.subject.meshActigraphy - methods
 
dc.subject.meshCerebral Palsy - physiopathology
 
dc.subject.meshChild
 
dc.subject.meshDisability Evaluation
 
dc.subject.meshExercise - physiology
 
dc.subjectCerebral palsy
 
dc.subjectChild
 
dc.subjectHeart rate
 
dc.subjectRehabilitation
 
dc.titlePhysical activity measurement using MTI (actigraph) among children with cerebral palsy
 
dc.typeArticle
 
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Author Affiliations
  1. The University of Hong Kong