3. Pinch with three fingers instead of two (thumb OA)
5
Picture A
Picture B
T o limit pressure on the base of the thumb you should always try to pinch with three fingers (thumb, index and the middle fingers) picture A. Picture B demonstrates ways of pinching with the (thumb and index finger) which is not preferred. The force through the base of the thumb is 12 times greater in picture B vs. picture A increasing pain and irritation to the base of the thumb.
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