SFMA Toe Touch
Biomechanical analysis of SFMA toe touch movement assessment, including forward bending and hip flexion range of motion.
SFMA Toe Touch
Overview
The SFMA (Selective Functional Movement Assessment) toe touch assessment evaluates the range of motion and quality of movement in the spine during forward bending. This assessment measures the ability to achieve sufficient hip flexion while maintaining proper alignment and identifying any compensations.Discrete Metrics
| Metric | Data Type | Units | Description |
|---|---|---|---|
| KneeFlexionROM | Float | degrees | Range of knee flexion motion (average of left & right ROMs) |
| PassKneeFlexion | Boolean | - | Whether knee flexion is within acceptable range (≤ 15°) |
| WristsPassAnkles | Boolean | - | Whether wrists reach below ankles |
| WristsToAnklesDistance | Float | meters | Vertical distance from wrists to ankles at maximum reach. Positive value indicates reaching past mark, negative value indicates insufficient reach. |
| HipsPassHeels | Boolean | - | Whether hips move backward past heels |
| HipsToHeelsDistance | Float | meters | Horizontal distance from hips to heels at maximum reach. Positive value indicates reaching past mark, negative value indicates insufficient reach |
| Functional | Boolean | - | Whether movement is functional (meets all criteria) |
Notes
- All angular measurements follow ISB conventions
- Kinematic data typically captured at 120Hz for stability activities
- Functional movement requires:
- Knee flexion ROM ≤ 15°
- Hips pass behind heels
- Wrists pass below ankles