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Association between musculoskeletal function and postural balance in patients with long-lasting dizziness. A
Linda Haukanes1, Mari Kalland Knapstad1,2, Lene Kristiansen1
1Department of Health and Function, Western Norway University of Applied Sciences, Bergen, Norway.
Background And Purpose:
Reduced balance and musculoskeletal pain are frequently reported among patients with long-lasting dizziness. However, the association between musculoskeletal function and postural sway among these patients has not been examined. The objective of this study was to examine if there is an association between aspects of musculoskeletal function and postural balance in patients with long-lasting dizziness.
Methods:
This was a cross-sectional study, using data of 105 outpatients with long-lasting dizziness. Aspects of musculoskeletal function was assessed by examining body flexibility, grip strength, preferred and fast walking speed, in addition to musculoskeletal pain. Musculoskeletal pain was evaluated using the Subjective Health Complaints questionnaire. Postural balance was assessed by path length of postural sway by using a balance platform on both firm and soft surfaces, with eyes open and closed. The association between musculoskeletal function and postural sway was assessed using linear regression analyses.
Results:
When adjusting for age and gender we found that on a firm surface, there was an association between increased musculoskeletal pain and increased postural sway measured with eyes open (p = 0.038). In addition, there was an association between decreased body flexibility and decreased postural sway with eyes open (p = 0.025). On a soft surface, decreased fast walking speed was associated with increased postural sway with eyes open (p = 0.027). In addition, decreased grip strength was associated with increased postural sway on a soft surface with eyes closed (p = 0.015).
Discussion:
The findings from this study imply that musculoskeletal function may associate with postural sway in patients with long-lasting dizziness, although the associations were weak.
