Conditioning is a form of training that enhances stamina and endurance, which are crucial for maintaining strong athletic performance throughout a practice, game or training session. Conditioning develops the body’s ability to meet the energy demands of various sports, both anaerobic and aerobic. Anaerobic activity uses stored energy to power short bursts of intense activity—such as sprinting, jumping or lifting weights—that last approximately 30 to 60 seconds. Aerobic activity uses oxygen to provide sustained performance for longer periods of time, for sports like cross country. Athletes should undergo conditioning tests and participate in conditioning workouts that mimic their sport. Learn how to boost your conditioning with workouts, exercises and drills from today’s top experts and elite athletes.