A triathlon is an event that involves the completion of three consecutive endurance events. According to the book "Triathlon 101," this typically involves bicycling, running and swimming over long distances. Understanding how to breathe properly during a triathlon can increase your physical endurance, bring more oxygen to your muscles, prevent dizziness and improve your athletic performance. Proper breathing can also help keep your blood pressure stable and reduce the chances of hyperventilating during the strenuous exercises of a triathlon.
Step 1
Breathe in a constant rhythm and pace during events such as running. For example, inhale when your feet strike the ground on the left, right, left. Exhale completely with the following right and left foot strikes.
Step 2
Breathe out during the effort part of the exercise. For example, exhale if you have to lift or push something during the triathlon.
Step 3
Inhale via your nose and exhale via your mouth if possible. This will ensure that you bring in enough oxygen to your blood and muscles.
Step 4
Exhale right before your head comes up from the water if you are participating in the swimming portion of a triathlon. Tilt your head to the side and inhale right as your face comes up from the water.
Tips and Warnings
- The more rigorous the triathlon activity is, the more important it is that you breathe rhythmically and constantly. Failing to do so can result in a sharp abdominal pain called a side stitch. Slow down your breathing and take deep breaths if you experience a side stitch during a triathlon.
- Military.com warns that breathing shallow, short or hurried breaths during exercise can raise your heart rate and carbon dioxide levels, which can decrease your physical endurance during events such as bicycling, running or swimming. It can also increase your body's production of lactic acid, which can result in muscle soreness and pain.


