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
British Hang Gliding and Paragliding Association for everyone. British Hang Gliding and Paragliding Association The British Hang Gliding and Paragliding Association (BHPA), based in Leicester, is the governing body in the UK for hang gliding and paragliding. The BHPA is recognised by the Fédération Aéronautique Internationale, the Royal Aero Club, and the Civil Aviation Authority. The association has registered schools across the country, where initial paragliding or hang gliding training must be undertaken. The BHPA was formed in 1992 by the merging of the British Hang Gliding Association and the British Association of Paragliding Clubs. Since then the sport has grown considerably, and now has over