Test-retest reliability of postural sway in people with and without low back pain measured with a test using a Wii Balance Board and lumbar torsion.
2019 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE credits
Student thesis
Abstract [en]
Background: Increased postural sway has been detected in people with chronic low back pain. Studies done on neck pain indicate that neck torsion increases the postural sway and therefore is a possible test to identify proprioceptive impairments in the neck. It has, to our knowledge, not been investigated if lumbar torsion has the same effect on postural control.
Objective: to investigate the reliability of a test using torsion of the lumbar spine when measuring postural sway.
Design: cross-sectional design, test-retest study.
Methods: Postural sway was measured in neutral and torsion left and right in 30 participants with low back pain (LBP) and 28 controls. A rotation board was constructed upon which a Wii Balance Board (WBB) was placed, connected to a personal computer via Bluetooth. Measures were obtained with a custom-made program, WBB vibration program Julia Treleaven 1.3.
Result: For path velocity Intraclass Correlation Coefficient (ICC) ranged from 0,88 to 0,94 and Standard Error of Measurement (SEM) varied from 7,1% to 12,0%, with a significant between trials difference. In anteroposterior amplitude ICC ranged from 0,63 to 0,88 with SEM varying from 11,2% to 16,8% and in mediolateral amplitude ICC ranged from 0,77 to 0,93 with SEM varying from 11,8% to 25,2%.
Conclusion: the test shows high relative reliability and acceptable absolute reliability. There is a decrease in mean path velocity from the first to the second test, indicating a possible learning effect. Torsion needs to be better directed to the lumbar spine and the test procedure needs to be simplified for the test to be used in the clinic.
Place, publisher, year, edition, pages
2019. , p. 38
Keywords [en]
low back pain, lumbar torsion, postural sway, test-retest reliability
National Category
Physiotherapy
Identifiers
URN: urn:nbn:se:ltu:diva-74784OAI: oai:DiVA.org:ltu-74784DiVA, id: diva2:1327790
Subject / course
Student thesis, at least 30 credits
Educational program
Physiotherapy, master's level (120 credits)
Supervisors
Examiners
2019-06-242019-06-202025-02-11Bibliographically approved