| ISOS | International Surgical Outcomes Study |
| LSMs | Lumbar Spine Microdiscectomies |
| rLDH | recurrence Lumbar Disc Herniation |
| ROM | Range of Motion |
| L5-S1 | Fifth Lumbar–First Sacral vertebrae |
| MRC | Medical Research Council scale |
| BMI | Body Mass Index |
| JOA | Japanese Orthopaedic Association |
| IMU | Inertial Measurement Units |
| SD | Standard Deviation |
| LSFs | Lumbar Spine Flexions |
| N.S. | Normal Subjects |
| PW | Postoperative Week |