Associations of neck–shoulder muscle strength gain, self-rated pain and disability in women with nonspecific neck pain
Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Aim: to investigate the association between changes in neck-shoulder muscle strength and changes in self-rated pain and disability, for women with nonspecific neck pain after a neck-shoulder strength training intervention.
Methods: Observational longitudinal correlation study based on an experimental study. Data was retrieved from an RCT with neck-shoulder exercise intervention. 45 women, age 20-64, with nonspecific neck-shoulder pain were divided into three groups based on type of exercise they received. Craniocervical flexion training (CCF)-group n=15; cervicothoracic training (CTH)-group n=18; craniocervical flexion training and cervicothoracic training (CCF+CTH)-group n=12. Spearman’s correlation coefficient (rs) was used for statistical analyses of correlations between changes in neck-shoulder strength, self-rated pain and disability. Change values from baseline to follow up one week after intervention period for CCF-strength, CTH-strength, Numeric Rating Scale (NRS) and Neck Disability Index (NDI) were used for the correlation analyses.
Results: Correlations between neck strength changes and changes in pain and disability were overall low or very low. An improvement in CTH-extension showed a moderate correlation with an increase in disability in the CCF+CTH-group. For all other correlation analyses, CCF-strength and CTH-strength showed low (rs 0,3-0,5) or very low (rs 0,0-0,3) correlations with both NRS and NDI.
Conclusion: The results from this study give no support for neck-shoulder muscle strength gain being the explaining mechanism behind reduced neck pain and disability in women with non-specific neck pain after neck-shoulder strength training intervention. The results give indications of the complexity around neck pain and exercise. Future research should further investigate mechanisms related to neck-shoulder exercise, pain and disability.
Place, publisher, year, edition, pages
Neck pain, correlation, exercise, strength, Disability, Spearman’s, Physiotherapy
IdentifiersURN: urn:nbn:se:umu:diva-122067OAI: oai:DiVA.org:umu-122067DiVA: diva2:937071
Master's Programme in Physiotherapy
Björklund, Martin, Docent, Leg. Sjukgymnast
Lundin-Olsson, Lillemor, Professor