Easy Breathing

Run your easy runs at a pace where you can talk in full sentences. At moderate effort you can talk but not sing.

breathing a little faster than walking, but you could chat.

Check it now and then by saying a sentence or two out loud. If you have to pause for breath after a few words, you've moved into harder running. Slow down until talking is comfortable again.

the words come out without gulping air.

Stop and get checked if you have chest pain, dizziness, or breathlessness that doesn't settle when you stop. That isn't a breathing-technique problem.

Breathe through your nose and mouth together, however feels natural. Nose-only breathing is optional on easy runs, not a rule. In one small lab study, nose-only breathing changed little at moderate effort but lowered peak capacity and felt harder, so don't force it on hard efforts.

you're not fighting for air through a narrow gap.

If your breathing feels tight and high in your chest, drop your shoulders and let your belly move as you breathe in. Use this as a relaxation cue. We found no study showing belly breathing makes you faster or more efficient.

shoulders low, stomach not held tight.

Notice that your breathing tends to lock into your steps. Runners use several patterns (in one classic study: 4, 3, 2.5, 2, 1.5 or 1 stride per breath), with 2 strides per breath the most common.

a rhythm you didn't have to plan.

Let the pattern settle on its own; you don't need to count. Studies find big differences between people, and runners tend to fall into patterns that make breathing easier. In one study, training didn't make the link stronger; it changed how runners adapted it as speed changed.

If counting helps you stay calm, try it. A popular coaching pattern is 3 steps in, 2 steps out, so each exhale starts on the other foot. The claim that this spreads impact and prevents injury is a coach's idea. We found no study testing it, so treat it as a focus tool, not protection.