The Rotary Stability Test: Now the Most Reliable Pattern in the Functional Movement Screen (ICC 0.96) - in a Screen That Predicts Injury Only Weakly (Risk Ratio 1.47)
The rotary stability test is the seventh and most awkward pattern in the Functional Movement Screen, and the one most testers score inconsistently. The athlete starts on hands and knees with a board or line running between the hands and knees, then lifts one arm and one leg off the floor, extends them, and brings elbow and knee together over the line before returning to the start. The classic scoring is a 3 for a clean repetition with the arm and leg on the same side, a 2 for a clean repetition with the opposite arm and leg, a 1 for failing both, and a 0 for pain on the clearing test. The screen's updated version changed both the pattern and its criteria, which makes the reliability question live again.
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