Technical Details
- Variable Type: Movement Flag
- Data Type: Integer
- Units: N/A
- Column Name:
contact_phase_arm_out_of_slot_position - Optimal Direction: Lower is better
- Unknown Value: -1
- Measurement: Contact Phase Shoulder Abduction at Apex
- Threshold: Shoulder abduction less than 110° or greater than 140°
Description
Contact phase arm out of slot position is a binary indicator that flags when the dominant shoulder is abducted outside the 110°–140° range at ball contact, indicating the arm is not in an optimal overhead “slot” position to strike the ball.Use Cases
- Contact position assessment
- Mechanics evaluation