The effect of trunk balance exercises and whole body vibration on the low back pain.

Not Applicable

Conditions: low back pain.
low back pain
M54.5

Registration Number: IRCT2016072229029N1

Lead Sponsor: Shiraz University of Medical Sciences

Brief Summary: Patients with low back pain (LBP) have reduced core muscle geometry and impaired postural balance. Impaired trunk control was shown to be associated with poor balance and limited functional mobility in these patients. However, the relationship between muscle geometry and postural balance is unclear. This study aimed to determine the correlation of core muscle geometry with pain intensity, functional disability and postural balance in patients with chronic nonspecific mechanical LBP. Thirty patients aged 20–50 years were enrolled. Ultrasound imaging was used to assess their muscle geometry. The participants completed a numerical rating scale (NRS) for pain severity, and the Persian version of the Roland–Morris Disability Questionnaire (PRMDQ). To estimate static balance, they were asked to perform the single leg stance test. Dynamic balance was assessed with the Y-balance test. Significant correlations were found between NRS scores and bilateral multifidus cross-sectional area during rest ( r =-0.31, P =0.04) and con- traction ( r =-0.37, P =0.02). NRS scores correlated significantly with bilateral multifidus thickness during rest ( r =-0.31, P =0.04) and contraction ( r =-0.28, P =0.04). Significant correlations were also observed for PRMDQ scores with thickness ( r =-0.35, P = 0.04) and cross-sectional area of the multifidus muscles ( r =-0.33, P = 0.04) bilaterally during contraction. A significant correlation was found between Y-balance scores and right abdominal muscle thickness during rest and contraction ( r =0.34, P =0.04). Core muscle geometry correlated with pain, functional disability indices and dynamic balance in these patients.

Detailed Description: Not available

Recruitment & Eligibility

Status: Complete

Sex: All

Target Recruitment: 50

Inclusion Criteria

Patients with chronic non-specific low back pain longer than four months duration
Pain severity according to a numerical rating scale (NRS) between 3 and 7
Functional disability with a score greater than 8 on the Persian version of the Roland–Morris Disability Questionnaire (PRMDQ)

Exclusion Criteria

Any dysfunctional entrapment of the nerve roots or history of radicular pain
Leg length discrepancy
A?ny history of hip or knee surgery
?Ankle or foot problems
History of lower extremity orthopedic surgery
Chronic ankle instability
Vestibular and neurological disease
Any uncorrected auditory or visual impairment

Study & Design

Study Type: interventional

Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
Dynamic balance. Timepoint: Baseline, End of study. Method of measurement: Y- balance test.;Static balance. Timepoint: Baseline, End of study. Method of measurement: Single leg stance test.

Secondary Outcome Measures

Name	Time	Method
Differences of thickness of TrA, Internal oblique, External obliqe and multifidus muscles bilaterally. Timepoint: Baseline, End of study. Method of measurement: Rehabilitation Ultrasonography Imaging.;Pain intensity. Timepoint: Baseline, End of study, One month after the end of study. Method of measurement: Visual Analog Scale( VAS).;Functional disability. Timepoint: Baseline, End of study, One month after the end of study. Method of measurement: Persian version of the Roland–Morris Disability Questionnaire (PRMDQ).;Differences of cross sectional area of multifidus muscle bilaterally. Timepoint: Baseline, End of study. Method of measurement: Rehabilitative Ultrasonography Imaging.