Click on the image for a larger view. The distance between feet on ground is wider than between legs at chest. Horse places more weight on inside of foot. The inside of the leg is under more strain. The distance between the feet at ground is narrower that between the legs at chest level.
Horse places more weight on outside of foot causing fetlock and pastern strain.
The hooves turn out from center line. Fault may start at forearm, knee or fetlock. Bow legged Usually associated with base narrow, toe in faults. Places excess strain on knees. Base narrow - toes out Closely placed feet and winging gait will cause interference and plaiting.