Track and Field: Shot Put
Biomechanical analysis of shot put throw movements, including events, phases, and discrete metrics.
Track and Field: Shot Put
Overview
Events
| Metric | Data Type | Acronym | Description |
|---|---|---|---|
| Dominant Foot Off | Int | DFO | the instance when the dominant foot leaves the ground |
| NonDominant Foot Off | Int | NDFO | the instance when the nondominant foot leaves the ground |
| Dominant Foot Down | Int | DFD | the instance when the dominant foot touches the ground |
| NonDominant Foot Down | Int | NDFD | the instance when the nondominant foot touches the ground |
| Release | Int | R | release of the shot |
Phases and Stages of the Shot Put
| Phase | Start | End |
|---|---|---|
| Entry | DFO | NDFO |
| Airborne | NDFO | DFD |
| Transition | DFD | NDFD |
| Delivery | NDFD | R |
Discrete Metrics
| Metric | Data Type | Units | Description |
|---|---|---|---|
| Handedness | String | N/A | Calculated handedness of the athlete (‘right’ or ‘left’) |
| Entry Phase | Float | seconds | Time between dominant foot off and non-dominant foot off |
| Airborne Phase | Float | seconds | Time between non-dominant foot off and dominant foot down |
| Transition Phase | Float | seconds | Time between dominant foot down and non-dominant foot down |
| Delivery Phase | Float | seconds | Time between non-dominant foot down and release |
| Height at DFO | Float | meters | Height of the shot at dominant foot off |
| Height at NDFO | Float | meters | Height of the shot at non-dominant foot off |
| Height at DFD | Float | meters | Height of the shot at dominant foot down |
| Height at NDFD | Float | meters | Height of the shot at non-dominant foot down |
| Height at Release | Float | meters | Height of the shot at release |
| Speed at DFO | Float | m/s | Speed of the shot at dominant foot off |
| Speed at NDFO | Float | m/s | Speed of the shot at non-dominant foot off |
| Speed at DFD | Float | m/s | Speed of the shot at dominant foot down |
| Speed at NDFD | Float | m/s | Speed of the shot at non-dominant foot down |
| Speed at Release | Float | m/s | Speed of the shot at release |
| Path Length | Float | meters | Total path length of the shot from DFO to release |
| Release Angle | Float | degrees | Angle of shot trajectory at release |
| Airborne Phase Distance | Float | meters | Distance travelled by pelvis during airborne phase |
| Base of Support Width | Float | meters | Width between ankles at non-dominant foot down |
| Trunk Flexion at Release | Float | degrees | Trunk flexion angle at release (forward = positive, backward = negative) |
| Trunk Tilt at Release | Float | degrees | Trunk tilt angle at release |
| Hip-Shoulder Separation at Release | Float | degrees | Angle between hips and shoulders at release |
| Distance | Float | meters | Estimated distance thrown |
Detailed Documentation
Events
::: upliftbiomch.events.throwing_events.ShotPutEventsMetrics
::: upliftbiomch.metrics.throwing_metrics.ShotPutMetricsNotes
- All angular measurements follow ISB conventions
- Kinematic data typically captured at 240Hz