Jack LaLanne - Before his death at age 96 in 2011, Jack LaLanne managed to make a tremendous contribution to the professional fitness industry. LaLanne is the creator of many plate-loaded machines used today. Even before Richard Simmons and the Atkins diet, LaLanne became a national celebrity by inspiring people to eat healthy diets and exercise on a regular basis. His television show began airing locally in San Francisco in 1951 before going national in 1959. The show remained on the air until the mid-1980s.