Technical Details
- Variable Type: Discrete Metric
- Data Type: Float
- Units: meters/second (m/s)
- Column Name: (implementation-specific)
- Measurement: Linear velocity magnitude (or component) of the dominant-side wrist joint center at Apex (ball contact)
Description
Contact phase wrist velocity is the linear speed of the wrist at ball contact. It is a proxy for racket-head speed and reflects the outcome of the kinematic chain at the moment of impact.Use Cases
- Racket speed proxy and serve power
- Technique and consistency
- Comparison across players or trials