Overview
The plank is a core stability assessment that evaluates an athlete’s ability to maintain a static position with proper form. This movement is commonly used in athletic assessment and training as it provides valuable information about core strength, stability, and endurance.Instructions
Front Plank: Start in a prone position with your forearms on the ground, elbows directly under your shoulders. Your body should form a straight line from your head to your heels. Engage your core muscles and hold this position while maintaining proper alignment. Keep your neck neutral and avoid letting your hips sag or rise. Side Plank: Start lying on your side with your legs stacked and your bottom forearm on the ground, elbow directly under your shoulder. Lift your hips off the ground so your body forms a straight line from your head to your feet. Keep your top arm extended upward or place it on your hip. Maintain this position while engaging your core and oblique muscles. Avoid letting your hips drop or rotating your torso.Dimensions
Required inputs for processing:- None
Events
| Event | Description | Column Name |
|---|---|---|
| Start | the start of the plank hold | start |
| End | the end of the plank hold | end |
Discrete Metrics
| Metric | Units | Description | Column Name |
|---|---|---|---|
| Side | N/A | Side of plank (‘left’, ‘right’, or ‘front’) | “ |
| Duration | seconds | Duration of the plank hold | “ |
| Average Pelvis Velocity | m/s | Average velocity of pelvis during plank hold | “ |
| Trunk Initial Angle Sagittal | degrees | Initial trunk angle in sagittal plane | “ |
| Trunk Initial Angle Frontal | degrees | Initial trunk angle in frontal plane | “ |
Notes
- Kinematic data typically captured at 30-60 Hz for stability activities
- Side is determined by shoulder abduction angles (threshold of 45 degrees)
- Duration is capped at 10 seconds