| Stance Time | seconds | Duration of the single leg stance | single_leg_stance_stance_time |
| Stance Time Clearance | - | Whether stance time passed threshold (1) or not (0) | single_leg_stance_time_clearance |
| Mean Sway Velocity | m/s | Average velocity of body center of mass during stance | single_leg_stance_mean_sway_velocity |
| Percentile 75 Sway Velocity | m/s | 75th percentile of sway velocity during stance | single_leg_stance_percentile75_sway_velocity |
| Mediolateral Displacement | meters | Maximum range of mediolateral (left/right) displacement of center of mass | single_leg_stance_mediolateral_displacement |
| Anteroposterior Displacement | meters | Maximum range of anteroposterior (forward/backward) displacement of center of mass | single_leg_stance_anteroposterior_displacement |
| Sway Area | m² | Square area of sway calculated from the product of ML and AP displacement | single_leg_stance_sway_area |
| Left Trunk Lean | degrees | Maximum left trunk lean in frontal plane | “ |
| Right Trunk Lean | degrees | Maximum right trunk lean in frontal plane | “ |
| Excessive Trunk Lean | - | Whether trunk lean exceeds threshold (1) or not (0) | single_leg_stance_excessive_trunk_lean |
