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.
Stability running shoes are designed for runners with mild to moderate pronation who have normal or medium arches. Stability shoes offer medium support that stabilizes the midfoot but allows for some torsion and flexion in the arch while maintaining flexibility in the forefoot. Stability shoes help to distribute the forces of impact and absorb shock more effectively while allowing the foot and ankle to support the body properly.