Validation of postural sway test-protocol on Wii Balance Board using muscle vibration on neck and low back and group differences among people with low back pain, neck pain and healthy controls
2019 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE credits
Student thesisAlternative title
Validering av testprotokoll för posturalt svaj på Wii Balance Board vid användande av muskelvibration på nacke och ländrygg samt gruppskillnader i posturalt svaj hos personer med smärta i ländryggen, nacken och friska kontroller (Swedish)
Abstract [en]
Background: Postural control is a complex product of interaction between sensory systems, the central nervous system (CNS) and motor functions. Proprioception is essential for postural control and can be addressed by muscle vibration. Postural control can be measured during balance tests on Wii Balance Board (WBB). The first aim of this study was to examine the validity of postural sway on WBB before, during and after muscle vibration. The second was to determine group differences in postural sway between participants with low back pain (LBP), neck pain (NP) and controls. Methods: Sixty participants attended the study, 21 with LBP, 19 with NP and 20 controls. Postural sway was recorded during quiet standing with eyes closed on WBB placed upon a Kistler Force Plate (KFP). Each participant performed three tests with 75 seconds duration. After 30 seconds quiet standing, 15 seconds vibration were applied to calves, lower back and neck respectively. Validity was analyzed by calculation of the correlation coefficient Spearman’s rho (r) and scatter plots. Group differences were analyzed using ANCOVA with height as co-variate.
Results: The measurements of postural sway showed high to very high correlation (r = 0,783 - 0,995) between WBB and KFP. Assessment of group differences showed significantly greater sway for the neck pain compared with the low back pain group for one variable after calf vibration. The low back pain group had significantly less sway than the control group for two out of six variables during back vibration. The neck pain group had significantly less sway than the control group for one variable during and for one variable after back vibration. Conclusion: The results from this study indicates validity for muscle vibration on WBB and indicates that persons with LBP could have less postural sway during back vibration than controls.
Place, publisher, year, edition, pages
2019.
Keywords [en]
Wii Balance Board, Muscle vibration, Postural control, Postural sway, Proprioception, Low Back Pain, Neck Pain
National Category
Physiotherapy
Identifiers
URN: urn:nbn:se:ltu:diva-75097OAI: oai:DiVA.org:ltu-75097DiVA, id: diva2:1332116
Subject / course
Student thesis, at least 30 credits
Educational program
Physiotherapy, master's level (120 credits)
Presentation
2019-06-04, 13:00 (Swedish)
Supervisors
Examiners
2019-06-282019-06-272025-02-11Bibliographically approved