The objective is to observe the evolution of walking parameters during the surgery process and find which of all calculated walking parameters represent the best indicators of functional disabilities and postoperative recovery for patient with lumbar spinal stenosis.
Study Type
OBSERVATIONAL
Enrollment
20
30 meters walking task (15 meters round trip) following by a rest period of 2 minutes. Participants are invited to perform the 30 meters walking task twice. Inertial sensors are put on each participant foot.
Université du Québec à Trois-Rivières
Trois-Rivières, Quebec, Canada
Change from baseline French-Canadian adaptation of Swiss Spinal Stenosis Questionnaires (FC-SSSQ)
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, 6 weeks post-surgery, 6 months post-surgery
Change from baseline Quality of life (EuroQol - 5D)
Quality of life related to mobility, self-care, usual activities, pain and discomfort, anxiety and depression. Each category has a score ranging from 1 to 3 and higher values indicate a worst outcome.
Time frame: Baseline, 6 weeks post-surgery, 6 months post-surgery
Change from baseline International Physical Activity Questionnaire (IPAQ)
physical activity habits. IPAQ score range from 1 to 3 where a score of 3 indicates a higher practice of physical activity
Time frame: Baseline, 6 weeks post-surgery, 6 months post-surgery
Change from baseline Walking time
Time participants take to do the walking task in seconds
Time frame: Baseline, 6 weeks post-surgery
Change from baseline Walking speed
the walking stride velocity (meter/second) is the mean speed of forward walking, calculated in meters per second
Time frame: Baseline, 6 weeks post-surgery
Change from baseline Gait cycle
Gait cycle (% stance phase, % swing phase)
Time frame: Baseline, 6 weeks post-surgery
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Change from baseline Stride length
Stride Length \[m\] describes the distance between two successive footprints on the ground, from the heel of a foot to the heel of the same foot, one cycle after.
Time frame: Baseline, 6 weeks post-surgery
Change from baseline Swing Width
Swing Width (m) is the maximal lateral excursion of the foot during swing phase. It is the maximum lateral distance between the forward path and the real path of the foot.
Time frame: Baseline, 6 weeks post-surgery
Change from baseline Minimal To Clearance
Min. Toe Clearance (meter) is the minimum height of the toes during swing phase.
Time frame: Baseline, 6 weeks post-surgery