Pivot joint in rotating an arm inward). When rotating the forearm, these movements are typically called pronation and supination. In the standard anatomical position, the forearms are supinated, which means that the palms are facing forward, and the thumbs are pointing away from the body. In contrast, a forearm in pronation would have the palm facing backward and the thumb would be closer to the body, pointing medially. Examples of a pivot joint include: In contrast, spherical joints (or ball and socket joints) such as the hip joint permit rotation and all other directional movement, while pivot joints only permit rotation. Pivot
Western saddle English saddles include: While a western saddle is designed to be ridden for many hours at a stretch; for covering distance where time is a factor, such as with Endurance riding, the lighter English saddle dominates. There are many types of Western saddle available. Some are general-purpose models while others emphasize either greater freedom for the horse or greater security for the rider, as may be necessary for specialized work in the various Western horse sports such as cutting, reining, barrel racing, team roping, equitation and western pleasure. Factors such as width of the swells, height of the cantle, depth