Star Excursion Balance Test (SEBT) evaluating dynamic postural control and lower extremity stability
Star Excursion Balance Test (SEBT)
1. Definition
The Star Excursion Balance Test (SEBT) is a functional test measuring dynamic stability and balance. The athlete balances on one leg while reaching in multiple directions with the other, evaluating the ability to maintain stability during complex movement tasks.
2. The Eight Test Directions
The test evaluates balance in eight directions forming a star shape:
- Anterior, Anterolateral, Lateral, Posterolateral, Posterior, Posteromedial, Medial, Anteromedial.
3. Testing Protocol
- Starting Position: Athlete stands on one leg, with the other raised.
- Performance: Reach as far as possible to touch a specific point on the ground in each direction.
- Measurement: Distance reached is recorded in centimeters for each direction.
- Repetition: Typically performed in three trials per direction.
4. Performance Criteria
The score is calculated by comparing the reached distances to the athlete's leg length.
Scoring Formula: Score = (Distance / Leg Length) * 100
5. Interpretation of Results
- High Scores: Indicate good dynamic stability and effective movement control.
- Low Scores: May indicate muscular imbalance, weak stabilizer muscles, or increased injury risk.
- Symmetry: Marked discrepancies between limbs signal imbalances requiring specific attention, particularly post-injury.
6. Advantages and Limitations
- Advantages: Simple, fast, excellent injury prevention tool (knee/ankle), and assesses dynamic multidirectional movement.
- Limitations: Performance can be influenced by fatigue or anxiety; accuracy depends on observer expertise; requires adequate space.
7. Use in Physical Preparation
- Assessment: Measuring ankle, knee, and core stability in dynamic conditions.
- Rehabilitation: Tracking functional progress after lower limb injuries.
- Agility: Identifying areas needing targeted training to improve overall stability.