In recent years many people have become increasingly aware of the need for physical fitness .* Almost everywhere people turn, whether it is to a newsstand, television or billboard , * advice for guarding and improving health bombards them. Although much of this advice is commercially motivated by those eager to sell vitamins, natural foods and reducing gimmicks ,* some of it, especially that advocating a regular exercise program, merits serious attention. Such a program, if it consists of at least thirty minutes three times a week and if a person's physician approves it,* provides numerous benefits. Regular exercise releases tension, improves appearance, and increases stamina .*