Additional Gluteal Control Training for Low Back Pain With Functional Leg Length Inequality: A Ramdomized Controlled Trail
Phase: NA
Conditions: Low Back Pain, Recurrent
Sponsor: National Yang Ming Chiao Tung University

Date: 2018/5/30 
 
The Effects of Additional Gluteal 
Control Training in Chronic Low Back 
Pain Patients with Functional Leg 
Length Inequality 
 
 
 
 
Author: Huang, Wen-Hung 
Adviser: Shih, Yi-Fen, Ph.D. 
 
 

Date: 2018/5/30 
Study Protocol 
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Objectives: To investigate the effect of additional gluteal control training on 
improving FLLI, the symmetry of pelvic alignment, hip control ability, pain, and 
disability in the LBP patients with FLLI. 
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Design: Double-blind randomized- control trail study design 
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Methods: 48 LBP patients with FLLI were recruited randomized to the additional 
gluteal control training group (GT) (experimental group, 10 males and 14 females, 
47.58±9.42 years, n=24) or the regular training group (RT) (control group, 11 
males and 13 females, 47.38±11.31 years, n=24). Both groups received general 
physical therapy (including thermal therapy, electo-therapy, and lumbar traction) 
for 6 weeks, and GT group received additional gluteal control training. The 
primary outcomes were pelvic inclination (PI) (degree), ilium anterior tilt 
difference (IATD) (degree), and functional leg length inequality (FLLI) 
(centimeter). And the secondary outcome measures were visual analogue scale 
(VAS), patient specific-functional scale (PSFS), Oswestry disability index (ODI), 
hip control ability, global rating of change scale (GRoC), lower extremity strength 
(kilogram) and lower extremity flexibility (degree). Statistical analysis was 
performed on an intention to treat basis using two-way repeated measures analysis 
of variances (ANOVAs) to examine if the experimental group showed more 
improvement than the control group. The significance level was set at p<0.05. 
 
Statistical Analysis Plan  
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Two-way repeated measures analysis of variance (ANOVA) for pelvic inclination, 
ilium anterior tilt difference, functional leg length inequality, VAS, ODI, PSFS, 
muscle strength and muscle flexibility 
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Statistical significance for all comparison at P < .05