The Hip Roll Test for Spinal Rotation: Letting the Shoulders Join In Adds 8-9 Degrees, Trained Raters Agree 74-89 Percent of the Time, and Restricted Means the Low 40s Against the High 50s
3 days ago
4 min read
The hip roll test is a floor-based screen for how far the trunk can rotate: the athlete lies on the back with knees bent and feet lifted, arms out to the sides, and lowers the knees to one side and then the other while the shoulders stay flat. What the tester is reading is spinal rotation and the length of the obliques, and what every tester worries about is whether the number means anything, because rotation can be borrowed from the shoulders, the hips and the pelvis. Two recent studies say how much the position changes the reading and how reliably trained eyes can judge it.
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