| Reproducibility of ultrasound measurement of transversus abdominis during loaded, functional tasks in asymptomatic young adults. | |
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MedLine Citation:
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PMID: 22732152 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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OBJECTIVE: To examine the reproducibility of repeat tests of ultrasound imaging (USI) measurement of transversus abdominis (TrA) activation in a single group of asymptomatic adults performing reaching and lifting tasks before and after abdominal drawing-in technique (ADIM) training in the supine position with TrA USI biofeedback. DESIGN: Clinical measurement, longitudinal reliability study. SETTING: University laboratory. PARTICIPANTS: Five male (age, 20.6 ± 4.8 years; body mass index, 25.8 ± 4.5) and 8 female (age, 18.3 ± 0.5 years; body mass index, 24.4 ± 3.3) healthy college students. INTERVENTIONS: Not applicable. MAIN OUTCOME MEASURES: Reliability and precision of minimum, maximum, and percentage of change in TrA thickness measures were examined on recorded cine loop images obtained via USI (B-mode, 7.5 MHz) for 13 asymptomatic adults. Thickness changes of the TrA muscle were measured at rest and during contraction while performing 5 functional, loaded tasks on 3 repeat tests during 3 testing sessions (ie, before ADIM training and 5 minutes and 5 months after ADIM training). The percent thickness change of TrA was calculated as [(thickness(max) - thickness(min))/thickness(min)] × 100. Reproducibility was examined by using intraclass correlation coefficients (ICC(2,k)), standard error of measurement (error variance formula), and repeated-measures analysis of variance. RESULTS: Ranges of ICC and standard error of measurement values for 3 repeat tests per testing session were high and precise for single measures of minimum thickness per task (session 1: 0.68-0.93, 0.24-0.37 mm; session 2: 0.62-0.87, 0.28-0.44 mm; session 3: 0.79-0.84, 0.43-0.56 mm) and for composite measures of maximum thickness (session 1: 0.93, 0.25 mm; session 2: 0.94, 0.37 mm; session 3: 0.95, 0.64 mm) and percent change in thickness (session 1: 0.81, 12%; session 2: 0.94, 14%; session 3: 0.94, 15%). Repeated-measures analysis of variance indicated significant effects for subjects, but not repeat tests. CONCLUSIONS: This study produced acceptable reproducibility of USI measures of TrA during loaded functional activities. |
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Authors:
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Sue L McPherson; Todd Watson |
Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: PM & R : the journal of injury, function, and rehabilitation Volume: 4 ISSN: 1934-1563 ISO Abbreviation: PM R Publication Date: 2012 Jun |
Date Detail:
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Created Date: 2012-06-26 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101491319 Medline TA: PM R Country: United States |
Other Details:
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Languages: eng Pagination: 402-12 Citation Subset: IM |
Copyright Information:
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Copyright © 2012 American Academy of Physical Medicine and Rehabilitation. Published by Elsevier Inc. All rights reserved. |
Affiliation:
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Department of Physical Therapy, Western Carolina University, Cullowhee, NC(⁎). |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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