sentences:  In the 1960s international sports competitions were expanded to include other disability groups who were not eligible for the World Games.In addition, the International Sports Organisation for the Disabled (ISOD) was officially formed in Paris in 1964, to provide international sports opportunities for the blind, amputees and persons with other loco motor disabilities.The distances involved in wheelchair racing include sprint distances of 100 m (109.4 yards), 200 m (218.7 yards) and 400 m (437.4 yards), middle distances of 800 m (874.9 yards) and 1500 m (1640.4 yards), long distances of 5000 m (3.1 miles) and 10,000 m (6.2 miles) and relay races of 4 × 100 m (109.4 yards) and 4 × 400 m (437.4 yards).