Mullingar Harriers Breathwork – Better Runners Breathe Better

Breathwork for runners is one of those areas that sounds a bit “out there” until you actually look into the physiology behind it. The reality is that better breathing can improve oxygen delivery, pacing, recovery, relaxation and overall running efficiency, whether you’re a complete beginner or an experienced athlete.

For 5-10 k and cross-country runners in particular, a few simple techniques can make a noticeable difference.

The first is diaphragmatic, or “belly”, breathing. Most people breathe very shallowly from the chest, especially when stressed or fatigued. Diaphragmatic breathing encourages fuller lung expansion and more efficient oxygen exchange.

A simple way to practise this is lying on your back with one hand on your chest and one on your stomach, breathing slowly through the nose and focusing on the stomach rising while keeping the chest relatively still. Over time this can help reduce side stitches, improve breathing control and create a calmer nervous system response during harder efforts.

Another useful technique is rhythmic breathing during running. This means syncing your breath with your stride pattern. For easy running, many athletes naturally settle into a 3:3 or 4:4 rhythm. During harder 5k pace efforts, a 3:2 pattern often works well, breathing in over three foot strikes and out over two. Research suggests this can help distribute impact stress more evenly through the body and reduce diaphragm fatigue during sustained efforts.

Pre and post-run breathing can also play a role. Before a session or race, several deep controlled breaths can help increase alertness and mentally prepare the body to perform. Afterwards, slower recovery breathing, such as box breathing using a 4 second inhale, 4 second hold, 4 second exhale and 4 second hold, can help activate the parasympathetic nervous system and support recovery.

There’s also growing evidence around nasal breathing during easier aerobic running. Breathing through the nose helps warm and humidify the air and may improve carbon dioxide tolerance and breathing efficiency. However, during harder anaerobic efforts, mouth breathing becomes important to allow maximum oxygen intake.

The key thing is that breathing is trainable, just like strength, pacing or technique. Small improvements in breathing mechanics and awareness can have a meaningful impact on performance, recovery and enjoyment of running.