Technical Details
- Variable Type: Event
- Data Type: Integer
- Units: Frame number
- Column Name:
foot_contact_frame - Required for QA: True
- Measurement: Front foot ground contact, combining lead ankle/toe height and velocity methods between max knee raise and low hand
Description
Foot Contact identifies when the front (lead) foot plants on the ground during the pitch delivery. It is detected using a combination of lead ankle and toe height, as well as ankle and toe velocity, to find the moment the foot becomes stationary on the ground.Use Cases
- Delivery phase identification
- Stride length calculation
- Angular metrics at foot contact