Effectiveness of a 6-week Specific Rehabilitation Program on Walking Capacity in Patients with Lumbar Spinal Stenosis

Change from baseline in leg and back pain intensity

Leg and back pain intensity will be independently assessed using a 11-point numerical rating scale (from 0 to 10 points). Higher score indicates higher pain.

Time frame: Baseline, week 2, week 4, week 6, week 12

Change from baseline in lumbar spinal stenosis related disabiltity

Lumbar spinal stenosis related disability is measured with the French-Canadian version of the Swiss Spinal Stenosis Questionnaire. Pain, function and satisfaction related to lumbar spinal stenosis. Pain subscale score range from 7 to 35 with higher values indicate a worst outcome, Function subscale score range from 5 to 20 with higher values indicate a worst outcome, Satisfaction subscale score range from 6 to 24 with higher values indicate a worst outcome. The total score is composed of the three subscales and range from 18 to 79.

Time frame: Baseline, week 6, week 12

Changes from baseline in self-efficacy

Measured with Self-efficacy measured with the French-Canadian Chronic Pain Self-Efficacy Scale. Each question is rated on a numerical scale (from 1 to 10). Total is calculated using the mean of the 33-items scores and ranges from 1 to 10 with a higher score indicate higher self-efficacy.

Time frame: Baseline, week 6, week 12

Change from baseline in anxiety and depression

Measured with the French-Canadian adaptation of the Hospital Anxiety and Depression Scale. Total score range from 0 to 21 with higher score indicating symptoms of anxiety and/or depression.

Time frame: Baseline, week 6, week 12

Change from baseline in physical activity level

Physical activity level assessed with the \[Physical Activity Questionnaire for the Elderly\]. The questionnaire allows to place participants into one of the 3 categories (low, moderate or high physical activity level). Physical activity level is measured in time per day.

Time frame: Baseline, week 6, week 12

Patient's global impression of change

Global impression of change will be measured using a 7-point scale that ranges from 'very much improved' to 'very much worse' with 'no change' as the mid-point.

Time frame: changes of the global impression of change throughout the study (baseline, week 2, week 4, week 6, week 12)

Change from baseline in biomechanical parameters of gait

Spatio-temporal parameters of gait measured with wearable inertial sensors (velocity (m/s))

Time frame: Baseline, week 2, week 4, week 6, week 12

Change from baseline in biomechanical parameters of gait

Spatio-temporal parameters of gait measured with wearable inertial sensors measured in meters (stride length, swing witdh, toe clearance)

Time frame: Baseline, week 2, week 4, week 6, week 12

Change from baseline in biomechanical parameters of gait

Spatio-temporal parameters of gait measured with wearable inertial sensors measured in % (walking phases, assymetry, variability)

Time frame: Baseline, week 2, week 4, week 6, week 12

Change from baseline in lower extremity physical function and balance

Lower extremity physical function and balance measured with the Short Physical Performance Battery. Total score ranges from 0 to 12 with higher score indicating a better lower extremity physical function and balance.

Time frame: Baseline, week 6, week 12