Technical Details
- Variable Type: Discrete Metric
- Data Type: Float
- Units: degrees (°)
- Column Name:
cocking_phase_max_shoulder_external_rotation - Measurement: Maximum shoulder external rotation angle marks the end of cocking phase at Max Shoulder ER)
Description
This metric is the maximum external rotation of the dominant shoulder during the cocking phase. Greater external rotation permits more range of motion to accelerate into the serve. The instant of maximum is the Max Shoulder ER event.Use Cases
- Shoulder loading, range of motion, and injury risk context
- Technique and power potential