Exercise refers to any type of physical activity that enhances or maintains physical fitness. During exercise, the foot inevitably takes on several different positions. Some areas, such as the arch or the heel, are subjected to high levels of stress, and therefore the use of activity-specific footwear is recommended. Athletic shoes as well as comfort shoes encompass a wide range of specified products specially designed to provide support to the body and enhance the exercise experience while minimizing the possibility of injury.
Running is both a competition and a type of training for sports that have running or endurance components. As a sport, it is split into events divided by distance and sometimes includes permutations such as the obstacles in steeplechase and hurdles. Running races are contests to determine which of the competitors is able to run a certain distance in the shortest time. Today, competitive running events make up the core of the sport of athletics. Events are usually grouped into several classes, each requiring substantially different athletic strengths and involving different tactics, training methods, and types of competitors.