2:2 running rhythm

How to do it

1. Sit tall with your hands on your thighs, or stand somewhere with a little room.
2. Start the guide and listen to a few rounds without doing anything. Each phase lasts 0.7 seconds, which is how long two steps take at about 170 steps a minute.
3. Breathe in through your nose for 0.7 seconds. It's a short, light breath, not a deep one.
4. Breathe out through your mouth for 0.7 seconds, lips loose, without blowing hard.
5. Mark the steps with your fingers on your thighs or your feet in place: two taps as you breathe in, two taps as you breathe out.
6. Keep the breaths small. At rest your body doesn't need the air a run takes, and breathing deeply at this pace will make you dizzy.
7. Keep going for 2 minutes, which is about 85 breaths. If you lose count, wait for the next breath in and rejoin.
8. To finish, drop the rhythm and breathe normally through your nose for half a minute. Once 2:2 comes without thinking, try it on an easy jog.

What the 2:2 rhythm is

It's a way of matching your breathing to your steps as you run. You breathe in for two steps and out for the next two, so each full breath takes four steps. At 180 steps a minute, the cadence Daniels uses for his math, that comes to 45 breaths a minute. With this guide's timing, built for about 170 steps, it's close to 43.

Its neighbor is the 3:2 rhythm, three steps in and two steps out. The 2:2 is even: the exhale always starts on the same foot. The 3:2 is odd and keeps switching feet. The 2:2 moves more air per minute, which is why it's tied to demanding paces.

Where it comes from

The name comes from Jack Daniels, a coach and exercise physiologist and the author of Daniels' Running Formula, a training manual first published in 1998 and now in its fourth edition. Daniels writes that more than 80 percent of the elite runners he has observed use a 2-2 rhythm most of the time, especially when the effort is fairly demanding.

He describes the neighboring rhythms too. In the last third of a race many runners shift to 2-1 or 1-2. He recommends starting a race in the rhythm you expect to hold, and he uses breathing as a gauge: if you can't keep your usual rhythm, you're going faster than suits you that day.

The underlying idea is older. In 1983 the biologists Dennis Bramble and David Carrier published "Running and Breathing in Mammals" in the journal Science, showing that running mammals synchronize their steps with their breathing.

What people use it for

Runners use 2:2 to put order in their breathing at medium and hard paces, to avoid starting a race already gasping, and to have a simple readout of effort. If the 2:2 falls apart, the pace is too high for that moment.

Rehearsing it first, without running, has a practical reason. Mid-run is a hard place to learn a new count. In a chair or on a walk, the pattern sinks in without fatigue, and afterward you only have to recognize it.

What the research says

Bramble and Carrier saw that four-legged animals usually take one stride per breath, while humans use several ratios and favor two strides per breath. A stride is two steps, so that ratio is the same count as 2:2: four steps per breath.

In 2013, Daley, Bramble and Carrier measured 14 adults on a treadmill. Eleven showed periods of coupling between steps and breathing, and the most common ratio was again two strides per breath.

A 1993 study of 34 untrained people found that breathing in time with a sound increased the coordination between steps and breathing, and that oxygen use was slightly lower when that coordination was strong. These are small studies. A 2022 review of breathing strategies for running notes that there is limited evidence on learning these rhythms deliberately, and none of this work shows that 2:2 beats any other rhythm.

What it feels like and what to notice

At rest, this rhythm feels fast, almost like tidy panting. That's expected: it's built for a body that's running. So the breaths stay short and shallow, and the work is in the count, not the air.

If you feel dizzy, lightheaded, or tingly in your hands or around your mouth, you're moving more air than you need. Drop the pattern, breathe normally through your nose, and come back with smaller breaths or with the walking variation.

Variations

• Walking, without the guide (your-pace variation): breathe in for two steps and out for two at whatever speed you walk. The seconds will be longer than the guide's, and it's harder to get dizzy.
• Gentler (3-3 variation): three steps in and three steps out, the rhythm Daniels describes on some easy runs.
• For the end of a race (2-1 variation): two steps in and one step out, when the effort climbs high.
• On a real run: let your mouth help on the breath in whenever the pace calls for it. The guide's nose inhale is for rehearsing at rest.

Common mistakes

• Breathing deeply in the chair. At 43 breaths a minute, filling up on each one is hyperventilating. Use very little air here.
• Forcing the rhythm when your body wants another. On a very easy jog, 2:2 can be more than you need. The rhythm follows the effort, not the other way around.
• Blowing hard. The breath out is short and loose.
• Letting the guide run your run. Your cadence may not be 170 steps. On the road your feet are in charge: two and two.

How often and how long

Two minutes is enough, once a day for a few days or right before you head out.

Then take it to short stretches of a jog, a minute or two at a time, and let your breathing run itself the rest of the way. If you have questions about your training or discomfort when you run, your coach or care provider is the right person to ask.

Before you start

• This is a fast rhythm. Practice it seated or walking, with small breaths. If you feel dizzy or tingly, stop and breathe normally.
• Never practice it while driving or in water.
• If you have asthma or a heart or lung condition, are pregnant, or have a history of fainting or panic attacks, check with your care provider first.
• Chest pain, breathlessness that doesn't ease, or dizziness on a run aren't fixed by a rhythm: stop and get care.