Francis Grondin1,2, David Colman3,4, Nicolas Peyrot1,5, Olivier Maillard6, Sébastien Freppel7, Teddy Caderby1, Yannick Perdrix2. 1. Laboratoire IRISSE, UFR Des Sciences de l'Homme Et de l'Environnement, Université de La Réunion, La Réunion, France. 2. School of Physiotherapy (IFMK de la Réunion), Centre Hospitalier Universitaire de La Réunion, Reunion, France. 3. Department of Physical Medicine and Rehabilitation, Liége University Hospital Center, Liége, Belgium. 4. Department of Sport and Rehabilitation Sciences, University of Liége, Liége, Belgium. 5. Le Mans Université, Mouvement - Interactions - Performance, MIP, EA 43 34, F-72000 Le Mans, France. 6. Centre for Clinical Investigation (CIC 1410) Institut National de la Santé et de la Recherche Médicale (INSERM), Centre Hospitalier Universitaire de La Réunion, Saint Pierre, Reunion. 7. Neurosurgery Department, Centre Hospitalier Universitaire de La Réunion, Reunion, France.
Abstract
OBJECTIVE: There are limited reports about the reliability of measuring neck extensor muscle strength using a portable dynamometer in neck pain patients. The aims of the current study were 1) to investigate intra- and inter-rater reliability of neck extensor isometric strength measurement using a portable dynamometer in patients with chronic nonspecific neck pain (CNSNP) and 2) to compare neck extensor isometric strength in participants with and without CNSNP. METHODS: Guidelines for Reporting Reliability and Agreement Studies (GRRAS) were followed. Two examiners received a 15-minute training before enrollment. Inter-rater reliability was assessed with a 10-minute interval between measurements, and intra-rater reliability was assessed with a 10-day interval. Three trials were assessed and examiners were blind to the strength values (in Newtons) from other sessions of 20 individuals with CNSNP (mean±SD= 37.9 ± 9.8y; Neck Disability Index 29.2 ± 7.4%) and 20 individuals with other musculoskeletal disorders (mean ± SD = 32.8 ± 46.2y). RESULTS: Intra-rater reliability was excellent with intraclass correlation coefficient (ICC)(3,1) of 0.95 (CI:0.90-0.97) and inter-rater reliability was good to excellent with ICC(2,1) of 0.88 (CI:0.77-0.94) in CNSNP. No significant difference of neck extensor strength was found between CNSNP (93.27N±31.94) and Individuals without CNSNP (111.43N±40.11) (p > 0.05). CONCLUSION: A portable dynamometer is a reliable tool for measuring maximal isometric neck extension strength in individuals with CNSNP. Slightly but no significant differences of neck extensor strength values between individuals with and without CNSNP. Future studies are needed to assess the generalizability of the findings in patients with other muscle deconditioning.
OBJECTIVE: There are limited reports about the reliability of measuring neck extensor muscle strength using a portable dynamometer in neck pain patients. The aims of the current study were 1) to investigate intra- and inter-rater reliability of neck extensor isometric strength measurement using a portable dynamometer in patients with chronic nonspecific neck pain (CNSNP) and 2) to compare neck extensor isometric strength in participants with and without CNSNP. METHODS: Guidelines for Reporting Reliability and Agreement Studies (GRRAS) were followed. Two examiners received a 15-minute training before enrollment. Inter-rater reliability was assessed with a 10-minute interval between measurements, and intra-rater reliability was assessed with a 10-day interval. Three trials were assessed and examiners were blind to the strength values (in Newtons) from other sessions of 20 individuals with CNSNP (mean±SD= 37.9 ± 9.8y; Neck Disability Index 29.2 ± 7.4%) and 20 individuals with other musculoskeletal disorders (mean ± SD = 32.8 ± 46.2y). RESULTS: Intra-rater reliability was excellent with intraclass correlation coefficient (ICC)(3,1) of 0.95 (CI:0.90-0.97) and inter-rater reliability was good to excellent with ICC(2,1) of 0.88 (CI:0.77-0.94) in CNSNP. No significant difference of neck extensor strength was found between CNSNP (93.27N±31.94) and Individuals without CNSNP (111.43N±40.11) (p > 0.05). CONCLUSION: A portable dynamometer is a reliable tool for measuring maximal isometric neck extension strength in individuals with CNSNP. Slightly but no significant differences of neck extensor strength values between individuals with and without CNSNP. Future studies are needed to assess the generalizability of the findings in patients with other muscle deconditioning.
Authors: Anita Gross; Theresa M Kay; Jean-Philippe Paquin; Samuel Blanchette; Patrick Lalonde; Trevor Christie; Genevieve Dupont; Nadine Graham; Stephen J Burnie; Geoff Gelley; Charles H Goldsmith; Mario Forget; Jan L Hoving; Gert Brønfort; Pasqualina L Santaguida Journal: Cochrane Database Syst Rev Date: 2015-01-28
Authors: Chantal H P de Koning; Sylvia P van den Heuvel; J Bart Staal; Bouwien C M Smits-Engelsman; Erik J M Hendriks Journal: BMC Musculoskelet Disord Date: 2008-10-19 Impact factor: 2.362