How to not run out of breath while fighting?

The most immediate way to get more oxygen into the body is through more efficient breathing, such as belly breathing or diaphragmatic breathing. Longer term, building up exercise tolerance will help reduce the out of breath feeling while exercising. Rhythmic breathing can make us more aware of the need for a longer time to inhale the oxygen needed for high-intensity exercise like running. To practice rhythmic breathing, use belly breathing and a 5-step pattern: Three steps as you inhale and two steps as you exhale. This will naturally shift your breathing so it's not impacting the same foot on the inhale repeatedly, reducing the pressure on the diaphragm and body during your run. As you hit a quicker pace and need more oxygen to fuel your muscles, you can still maintain this balance by shifting to a 3-step pattern: Two steps as you inhale and one step exhale. Focus on your pace of breathing and get comfortable with jogging, taking breaks as needed, before you increase the intensity.