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Acuity of goal-directed arm movements to visible targets in chronic neck pain
University of Gävle, Centre for Musculoskeletal Research. Department of Surgery and Perioperative Sciences, Division of Sports Medicine, University of Umeå, Alfta, Sweden; Alfta Research Foundation, Alfta, Sweden.
University of Gävle, Centre for Musculoskeletal Research. Department of Community Medicine and Rehabilitation, Physiotherapy, University of Umeå, Umeå, Sweden; Alfta Research Foundation, Alfta, Swede.
University of Gävle, Centre for Musculoskeletal Research. Alfta Research Foundation, Alfta, Swede.ORCID iD: 0000-0001-7543-4397
University of Gävle, Centre for Musculoskeletal Research.
2008 (English)In: Journal of Rehabilitation Medicine, ISSN 1650-1977, E-ISSN 1651-2081, Vol. 40, no 5, 366-374 p.Article in journal (Refereed) Published
Abstract [en]

OBJECTIVE: To evaluate end-point acuity in goal-directed arm movements in subjects with chronic neck pain, while taking the trade-off between speed and accuracy into account, and to evaluate associations between reduced acuity and self-rated characteristics. DESIGN: Single-blinded, controlled, comparative group study. SUBJECTS: Forty-five subjects with chronic non-traumatic, non-specific neck pain (n = 24) and whiplash-associated disorders (n = 21). Healthy subjects served as controls (n = 22). The groups were age- and sex-matched. METHODS: Subjects performed fast and accurate pointing movements to a visual target. Group differences in end-point variability, controlled for peak velocity, were evaluated. Associations between end-point variability and self-rated symptoms, functioning, self-efficacy and kinesiophobia were analysed. RESULTS: End-point acuity, controlled for peak velocity, was reduced for both neck-pain groups. Similar spatial error patterns across all groups indicated no direction-specific reduction. For both neck-pain groups, associations were found between end-point acuity and neck movement deficits, physical functioning and, in whiplash, also balance and pain. CONCLUSION: Acuity of goal-directed arm movements can be reduced in chronic neck pain. Associations between acuity and self-rated characteristics support the clinical validity of the results and indicate that impaired neck function contributes to reduced end-point acuity. The results can be of importance for characterization and rehabilitation of neck disorders.

Place, publisher, year, edition, pages
2008. Vol. 40, no 5, 366-374 p.
Keyword [en]
Kinaesthesis; Motor activity; Neck pain; Proprioception; Psychomotor performance; Somatosensory disorders; Vision; Whiplash injuries
National Category
Environmental Health and Occupational Health
Identifiers
URN: urn:nbn:se:hig:diva-1899ISI: 000255838600008PubMedID: 18461262Scopus ID: 2-s2.0-43449089790OAI: oai:DiVA.org:hig-1899DiVA: diva2:118561
Available from: 2008-05-29 Created: 2008-05-29 Last updated: 2016-10-28Bibliographically approved

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Sandlund, JonasRöijezon, UlrikBjörklund, MartinDjupsjöbacka, Mats
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