Technical Details
- Variable Type: Discrete Metric
- Data Type: Categorical / Array
- Units: N/A
- Column Name:
twist_kinematic_sequence - Measurement: Order in which segments reach peak twist (like a tornado) angular velocity
Description
Twist kinematic sequence describes the order in which the pelvis, torso, and upper arm reach their peak twist angular velocities during the serve. The optimal sequence is proximal-to-distal: pelvis → torso → upper arm, supporting efficient energy transfer. Related segment peaks: Speedup factors:Use Cases
- Technique quality and twist sequencing
- Comparison with optimal sequence
- Coaching and training feedback