Pre-operative (baseline) | |
 Baseline demographics: | Age, sex, smoking status, height, weight, diabetic history |
 History of back/leg symptoms: | Duration of symptoms, neurological deficit |
 Physical function: | ODQ, SF-36 |
 Pain: | Back and leg pain (NRPS) |
 Physical activity: | IPAQ-SF |
 Psychological status: | Depression (PHQ-9), anxiety (GAD-7) |
Post-operative (days 1–7): | |
 Surgical procedure: | Decompression, discectomy, fusion; single or multi-level |
 Accelerometry: | Time spent walking, step count, time spent in sedentary and active postures, number of walks |
 Pain: | Back, leg and wound pain (NRPS) |
 Supervised walking: | Patient/physiotherapist reported |
 Post-operative complications: | Complications requiring medical intervention and/or limit walking time |
Post-operative (6Â months): | |
 Physical function: | ODQ, SF-36 |
 Patient satisfaction: | 5 point likert scale |
 Post-operative complications: | Complications requiring medical intervention |