Complexity & Distraction in LBP

Centre Hospitalier Universitaire de Nīmes16 enrolled

Overview

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.

Study Type

INTERVENTIONAL

Allocation

Purpose

OTHER

Masking

NONE

Enrollment

Conditions

Chronic Low Back Pain Gait Motor Activity

Interventions

walk testBEHAVIORAL

The patient will have to walk on a treadmill in four different conditions: * without distraction at preferential speed * with distraction at preferential speed * without distraction at the speed of 130% of the preferential speed * with distraction at the speed of 130% of the preferential speed

Eligibility

Sex: ALLMin age: 18 YearsMax age: 75 Years

Medical Language ↔ Plain English

Inclusion Criteria: * The patient must have his informed consent and signed the consent form. * The patient must be affiliated or beneficiary of a health insurance plan * The patient is at least 18 years old and under 75 years old * Patients with common chronic low back pain for more than 6 months Exclusion Criteria: * The subject participates in another interventional study * The subject is in an exclusion period determined by a previous study * The subject is under the protection of justice, guardianship or curatorship * The subject refuses to sign the consent * It is impossible to inform the subject * Chronic symptomatic low back pain (tumoral pathology, infectious, or progressive inflammatory) * Unable to walk for more than 10 minutes (during interrogation) * Lower limb pain (EVA lower limb (s) ≥ Lumbar EVA)

Locations (1)

Nimes University Hospital

Nîmes, France

Outcomes

Primary Outcomes

Estimation of the fractal exponent when walking without distraction at preferential speed

\[0,5; 1,5\]

Time frame: Day 0

Estimation of the fractal exponent when walking with distraction at preferential speed

\[0,5; 1,5\]

Time frame: Day 0

Estimation of the fractal exponent when walking without distraction at the speed of 130% of the preferential speed

\[0,5; 1,5\]

Time frame: Day 0

Estimation of the fractal exponent when walking with distraction at the speed of 130% of the preferential speed

\[0,5; 1,5\]

Time frame: Day 0

Secondary Outcomes

EVA after walking without distraction at preferential speed

\[0; 100\]

Time frame: Day 0

EVA after walking with distraction at preferential speed

\[0; 100\]

Time frame: Day 0

EVA after walking without distraction at the speed of 130% of the preferential speed

\[0; 100\]

Time frame: Day 0

EVA after walking with distraction at the speed of 130% of the preferential speed

\[0; 100\]

Time frame: Day 0

Reaction time to auditory stimuli without distraction at preferential speed

Data from ClinicalTrials.gov

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