Mixed

Heat acclimatization via repeated exercise-heat exposures over 1-2 weeks is the most effective intervention to reduce physiological strain and optimize aerobic performance in hot environments.

If you are competing in the heat, you must spend 1-2 weeks training in the heat before the event. Train daily for at least 60 minutes, aiming to raise your core temperature and sweat. If you can't travel to a hot location, train in a hot room or outdoors in the heat. This is the single most important thing you can do to perform well.