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Title: Effects of high intensity training on pain, disability, exercise capacity and muscle strength in persons with nonspecific chronic low back pain: preliminary RCT results
Authors: VERBRUGGHE, Jonas 
AGTEN, Anouk 
STEVENS, Sjoerd 
Issue Date: 2018
Source: 9th Biennial Congress of the Belgian Back Society, Brussel, 01/12/2018
Abstract: Background Nonspecific chronic low back pain (NSCLBP) is a musculoskeletal disorder affecting many people worldwide. Exercise therapy (ET) is an important component of NSCLBP management. However, effect sizes remain low1. High Intensity Training (HIT) is an effective training method for improving physical fitness and health related parameters in healthy persons as well as for decreasing pain and disability in persons with chronic disorders2. The value of HIT in NSCLBP rehabilitation is unclear. Aims The aim of this study is 1) to compare HIT to conventional ET, and 2) to compare the effects of different modes of HIT, with regard to pain, disability, exercise capacity, and muscle strength, in persons with NSCLBP. Materials and methods A five-arm parallel RCT (n=150) is carried out consisting of an ET program (24 sessions/12 weeks) organized at REVAL (Hasselt University, Belgium) in persons with NSCLBP. Participants are randomly assigned into one of four intervention groups performing various modes of HIT or a control group performing moderate intensity training resembling conventional care (Figure 1). Participants are measured at baseline and after completing the program. Primary outcome measures are pain intensity (Visual Analogue Scale), functional disability (Oswestry Disability Index), exercise capacity (VO2max during exercise testing), and abdominal and back strength (Newton/kg during isometric strength testing). Figure 1: Therapy protocols. Results Sixty-nine persons with NSCLBP have completed the program (group average: n= 14). All outcomes showed time-related improvements in all groups (p>0.001). No between group differences were noted in any outcomes. Conclusions Preliminary data of this RCT suggest that several modes of HIT protocols have positive effects on pain intensity, functional disability, exercise capacity, and isometric abdominal/back muscle strength, in persons with NSCLBP. Patient recruitment is still ongoing to increase the power of this study and further analyse the differences between HIT groups with specific modalities and conventional therapy.
Keywords: Low back pain; rehabilitation; high intensity training; exercise therapy; therapy modalities
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Category: C2
Type: Conference Material
Appears in Collections:Research publications

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