Technical Details
- Variable Type: Movement Flag
- Data Type: Integer
- Units: N/A
- Column Name:
loading_phase_lack_shoulder_drop - Optimal Direction: Lower is better
- Unknown Value: -1
- Measurement: Loading Phase Trunk Tilt
- Threshold: Trunk tilt greater than -5°
Description
Loading phase lack of shoulder drop is a binary indicator that flags when the trunk does not tilt sideways toward the rear (dropping the dominant shoulder) by at least 5° during the loading phase, which reduces the shoulder-over-shoulder tilt used to load the serve.Use Cases
- Loading posture assessment
- Mechanics evaluation