earticle

영어

The main aim of this study was to evaluate the perceived level of diffi-culty and fear of movement among patients with chronic low back pain (CLBP) compared with asymptomatic subjects when they visualized motor control therapeutic exercises (MCTEs) commonly used in physio-therapy. Our secondary objective was to analyse the correlation be-tween fear of MCTEs and other psychological and disability variables. Thirty patients with CLBP comprised the treatment group, and 30 as-ymptomatic subjects comprised the control group. The procedure con-sisted of showing photographs and videos of seven MCTEs and having the participants rate their perceived difficulty and fear. Participants then answered a series of psychological self-report measures. Differences were found between groups in perceived difficulty of the MCTEs shown in videos (F=21.06, P<0.001) and photographs (F=15.86, P<0.001), as well as for perceived fear (F=9.71, P<0.001; F=8.61, P<0.001, respec-tively). Regression analysis indicated that in the CLBP group the predic-tor variable for perceived difficulty and fear was the lumbar disability (explaining 44% and 28% of the variance, respectively), however in the control group the predictor variables were catastrophizing and self-effi-cacy (38% and 34% of the variance, respectively). In conclusion, pa-tients with CLBP experience greater perceived level of difficulty and fear of movement when visualizing MCTEs than asymptomatic subjects. Psychological factors and disability were correlated with perceived dif-ficulty and fear when videos and photographs of exercises were shown.