| Reliability of center of pressure measures for assessing the development of sitting postural control in infants with or at risk of cerebral palsy. | |
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MedLine Citation:
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PMID: 20875520 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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OBJECTIVE: To establish the test-retest reliability of linear and nonlinear measures, including intra- and intersession reliability, when used to analyze the center of pressure (COP) time series during the development of infant sitting postural control in infants with or at risk for cerebral palsy (CP). DESIGN: Longitudinal study. SETTING: University hospital laboratory. PARTICIPANTS: Infants with or at risk for CP (N=18; mean age ± SD at entry into the study, 13.7±3.6mo). INTERVENTIONS: Not applicable. MAIN OUTCOME MEASURES: Infant sitting COP data were recorded for 3 trials at each session (2 sessions for each month within 1 week) for 4 consecutive months. The linear COP parameters of the root mean square, the range of sway for both the anterior-posterior and the medial-lateral directions, and the sway path were calculated. In addition, the nonlinear parameters of approximate entropy, Lyapunov exponent (LyE), and the correlation dimension for both directions were also calculated. Intra- and intersession reliability was computed by the intraclass correlation coefficient (ICC). RESULTS: Regarding nonlinear measures, LyE showed high intra- and intersession ICC values in comparison with all other parameters evaluated. Intrasession and intersession reliability increased overall in the last 2 months of data collection and as sitting posture improved. CONCLUSIONS: Our results suggested that the methodology presented is a reliable way of examining the development of sitting postural control in infants with or at risk for CP, and the reliability results generally parallel values found in sitting postural behavior in typical infants. Therefore, this methodology may be helpful in examining efficacy of therapy protocols directed at advancing sitting postural control in infants with motor developmental delays. |
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Authors:
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Anastasia Kyvelidou; Regina T Harbourne; Valerie K Shostrom; Nicholas Stergiou |
Publication Detail:
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Type: Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Archives of physical medicine and rehabilitation Volume: 91 ISSN: 1532-821X ISO Abbreviation: Arch Phys Med Rehabil Publication Date: 2010 Oct |
Date Detail:
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Created Date: 2010-09-29 Completed Date: 2010-10-19 Revised Date: 2012-05-07 |
Medline Journal Info:
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Nlm Unique ID: 2985158R Medline TA: Arch Phys Med Rehabil Country: United States |
Other Details:
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Languages: eng Pagination: 1593-601 Citation Subset: AIM; IM |
Copyright Information:
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Copyright © 2010 American Congress of Rehabilitation Medicine. Published by Elsevier Inc. All rights reserved. |
Affiliation:
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University of Nebraska at Omaha, 68182-0216, USA. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Cerebral Palsy
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diagnosis*,
rehabilitation* Developmental Disabilities / diagnosis, rehabilitation Female Hospitals, University Humans Infant Longitudinal Studies Male Observer Variation Physical Therapy Modalities* Postural Balance* Reproducibility of Results |
| Grant Support | |
ID/Acronym/Agency:
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K25 HD047194-01A1/HD/NICHD NIH HHS; K25 HD047194-02/HD/NICHD NIH HHS; K25 HD047194-03/HD/NICHD NIH HHS; K25 HD047194-04/HD/NICHD NIH HHS; K25 HD047194-05/HD/NICHD NIH HHS; K25HD047194/HD/NICHD NIH HHS |
| Comments/Corrections | |
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