Motor control, notably expressed through the complexity of the variability of the locomotor pattern, is disturbed at the central level by an apprehension of pain and movement, more than pain itself (or by biomechanical / structural damage of the spine) in chronic low back pain (cLBP) patients. The aim of this study is to control that variability is reduced during gait at comfortable level and to test that distraction can reduce pain avoidance and therefore increase variability in cLBP patients.
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Estimation of the fractal exponent when walking without distraction at preferential speed
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Estimation of the fractal exponent when walking with distraction at preferential speed
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Estimation of the fractal exponent when walking without distraction at the speed of 130% of the preferential speed
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Estimation of the fractal exponent when walking with distraction at the speed of 130% of the preferential speed
Timeframe: Day 0