21. :: This is called pronation of the feet, and may be due to flat feet. 22. Pronation is the motion of the inner and outer ball of the foot with the heel bone.23. Pronation ( eversion ) and supination ( inversion ) occur along the oblique axis of the ankle joint.24. The "'binasuan "'is a radius to cross over the ulna via pronation . 25. Flat feet generally do not cause problems but may sometimes cause the foot to rotate inwards ( pronation ). 26. Company says : " This shoe is extremely durable and stable, preventing pronation in terms of motion control. 27. It forces users to put their wrists into a palms-down position ( the medical term is pronation ). 28. It brings the forearm into midposition between supination and pronation , and in this position it acts as a flexor. 29. But many runners and walkers are cursed with a built-in mechanical flaw : too much or too little pronation . 30. A mouse may be angled from the thumb downward to the opposite side this is known to reduce wrist pronation .