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Title: | Test-Retest Reliability of a Static and Dynamic Motor Fatigability Protocol Using Grip and Pinch Strength in Children With Cerebral Palsy | Authors: | BRAUERS, Lieke Smeets , Rob FEYS, Peter Gordon, Andrew M. Van der Leij-Roelofsen, Bertie Bastiaenen, Caroline RAMECKERS, Eugene KLINGELS, Katrijn |
Issue Date: | 2022 | Publisher: | OXFORD UNIV PRESS INC | Source: | Physical Therapy & Rehabilitation Journal, 102 (10) (Art N° pzac088) | Abstract: | Objective The purpose of this study was to investigate the test-retest reliability, measurement error, and interpretability of new motor fatigability outcomes of grip and pinch strength for children with unilateral cerebral palsy (UCP). Methods Motor fatigability during grip and pinch strength was measured twice (within 48 hours) in both hands of 50 children (mean age = 11 years 2 months; 14, 31, and 5 children with Manual Ability Classification System levels I, II, and III, respectively) using a 30-second static and dynamic maximum exertion protocol. For static motor fatigability, the Static Fatigue Index (SFI) and mean force (F-mean) in the first (F-mean1) and last (F-mean3) 10 seconds were calculated. For dynamic motor fatigability, F-mean1, F-mean3, and the number of peaks in the first and last 10 seconds were calculated. Results For static motor fatigability, the intraclass correlation coefficients (ICCs) were moderate to high for F-mean1 and F-mean3 (0.56-0.88), and the SFI showed low to moderate reliability (ICC = 0.32-0.72). For dynamic motor fatigability, the ICCs were moderate to high for all outcomes (0.54-0.91). The standard error of measurement agreement and the smallest detectable difference agreement were large in all outcomes, except for the SFI in static motor fatigability. Details per age group are provided. In general, younger children (6-11 years old) showed lower reliability than older children (12-18 years old). Conclusion Most outcome measures for static and dynamic motor fatigability of grip and pinch strength show moderate to high reliability in children with UCP, indicating that these tests can be used reliably to investigate the presence of motor fatigability in UCP, especially in older children. Standard error of measurement agreement and smallest detectable difference agreement indicated that these outcome measures should be interpreted with caution when evaluating change. Impact Most of the proposed outcome measures for static and dynamic motor fatigability of grip and pinch are reliable in children with UCP and can be used for discriminative purposes. | Notes: | Brauers, L (corresponding author), Hasselt Univ, Fac Rehabil Sci, REVAL Rehabil Res Ctr, Hasselt, Belgium.; Brauers, L (corresponding author), Maastricht Univ, Res Sch CAPHRI, Dept Rehabil Med, Maastricht, Netherlands. lieke.brauers@uhasselt.be |
Keywords: | Anatomy;Cerebral Palsy;Fatigue;Hand;Hand Strength;Neurology | Document URI: | http://hdl.handle.net/1942/38951 | ISSN: | 0031-9023 | e-ISSN: | 1538-6724 | DOI: | 10.1093/ptj/pzac088 | ISI #: | 000881966300002 | Rights: | The Author(s) 2022. Published by Oxford University Press on behalf of the American Physical Therapy Association. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com | Category: | A1 | Type: | Journal Contribution | Validations: | ecoom 2023 |
Appears in Collections: | Research publications |
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