Swimming is an individual or team racing sport that requires the use of one's entire body to move through water. The sport takes place in pools or open water.

Stretching is a form of physical exercise in which a specific muscle or tendon is deliberately expanded and flexed in order to improve the muscle's felt elasticity and achieve comfortable muscle tone.

Running is a method of terrestrial locomotion allowing humans and other animals to move rapidly on foot. Running is a type of gait characterized by an aerial phase in which all feet are above the ground (though there are exceptions).