This reference lists every metric produced by the four production modules.
Gait
| Metric | Unit | Meaning | Direction | |---|---|---|---| | gait_speed_est_mps | m/s | Average walking speed over the captured distance | Higher is better | | cadence_spm | steps/min | Steps per minute | Target range | | symmetry_index_percent | % | Left-right asymmetry across step length and timing | Lower is better |
Squat
| Metric | Unit | Meaning | Direction | |---|---|---|---| | squat_depth_min_hip_height | ratio | Minimum hip height as a fraction of standing hip height | Lower is better (deeper) | | trunk_lean_max_deg | degrees | Maximum forward trunk lean during descent | Lower is better | | tempo_sec_per_rep | seconds | Average time per repetition | Target range |
ACL Hop
| Metric | Unit | Meaning | Direction | |---|---|---|---| | hop_distance_m | meters | Horizontal distance of the single-leg hop | Higher is better | | contact_time_ms | milliseconds | Duration of ground contact at landing | Lower is better | | flight_time_ms | milliseconds | Airborne time during the hop | Higher is better | | takeoff_velocity_mps | m/s | Estimated takeoff velocity | Higher is better | | landing_knee_flexion_deg | degrees | Knee flexion angle at landing | Target range | | peak_knee_valgus_deg | degrees | Maximum frontal-plane knee displacement toward midline | Lower is better | | peak_knee_flexion_deg | degrees | Maximum knee flexion during the movement | Target range | | trunk_lean_deg | degrees | Trunk lean during the hop | Lower is better | | rsi | — | Reactive strength index | Higher is better | | lsi_percent | % | Limb symmetry index (affected vs unaffected) | Higher is better |
Countermovement Jump (CMJ)
| Metric | Unit | Meaning | Direction | |---|---|---|---| | jump_height_cm | cm | Vertical jump height | Higher is better | | flight_time_ms | milliseconds | Airborne time | Higher is better | | concentric_duration_ms | milliseconds | Push-off phase duration | Target range | | eccentric_duration_ms | milliseconds | Countermovement descent duration | Target range |
Metric validation
Every metric is range-validated before grading. Values outside plausible physiological ranges (for example, a jump height of 200 cm, or a negative contact time) are excluded from grading and logged.
See Modules & coverage for which modules are production-supported.