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Title: Use of Rasch analysis to investigate structural validity of a set of movement control tests for the neck
Authors : Sattelmayer, Martin
Hilfiker, Roger
Luomajoki, Hannu
Elsig, Simone
Published in : Musculoskeletal Science and Practice
Publisher / Ed. Institution : Churchill Livingstone
Issue Date: 2016
License (according to publishing contract) : Licence according to publishing contract
Type of review: Peer review (Publication)
Language : English
Subject (DDC) : 615.82: Physical therapy
Abstract: Background: Movement control abilities are often reduced in persons with neck pain. In physiotherapeutic practice observational tests are frequently used to assess the impaired abilities. Several tests for movement control abilities are available, but no evidence exists on how to combine and interpret them. Objective: The aim was to investigate structural validity of a set of movement control tests with Rasch analysis. Design: Cross-sectional study Methods: Thirty persons with and thirty without neck pain were recruited for this study. All persons performed ten movement control tests. A partial credit model was applied to investigate item fit, ordering of the item response functions, dimensionality and hierarchy of the tests. Results: The majority of persons with neck pain had moderate disabilities and the mean value in the Neck disability index was 10.7. Functioning of the movement control tests to measure the construct “movement control abilities” was adequate for the majority of tests. Three movement control test showed considerable misfit. Possible explanations were a reactive movement control instead of an active control and a more challenging test position. Test difficulties and person abilities could be estimated for the complete sample. The most difficult test was “sitting rocking forward” (1.13 logits) and the least difficult test was “lifting the right arm” (-1.30 logits). The highest person ability estimate was 3.61 logits indicating that movement control tests are missing to evaluate persons with moderate neck disabilities. Conclusion: Modifying the existing set of tests is required to evaluate the complete spectrum of persons with neck pain.
Further description : In press
Departement: Gesundheit
Organisational Unit: Institute of Physiotherapy (IPT)
Publication type: Article in scientific Journal
DOI : 10.1016/j.math.2016.07.006
ISSN: 2468-8630
Restricted until : 2017-07-21
Appears in Collections:Publikationen Gesundheit

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