Is Power better than Pace or Heart Rate?

A runner 'Running with Power'
A runner 'Running with Power'

𝐈𝐬 𝐩𝐨𝐰𝐞𝐫 𝐛𝐞𝐭𝐭𝐞𝐫 𝐭𝐡𝐚𝐧 𝐩𝐚𝐜𝐞, 𝐨𝐫 𝐡𝐞𝐚𝐫𝐭 𝐫𝐚𝐭𝐞?

It depends…

Running power provides numbers that 𝑟𝑒𝑝𝑟𝑒𝑠𝑒𝑛𝑡 your effort.

By doing this, power solves issues associated with other measures of intensity:
🔸 Heart Rate (HR) ‘lags’ when you change effort levels, and it can ‘drift’ on longer runs.
🔸 Pace is affected by hilly or windy conditions, and it’s very easy to choose a goal time not based on your current fitness – leading to training injuries and bonking / hitting the wall.
🔸 Perceived effort can take years to develop – a luxury most runners don’t have.

That said, there are a few things that are different about running with power:
🔹 It’s individual – your targets are based on completed workouts.
🔹 It includes maximum effort runs – to track your current fitness.
🔹 You’ll need apps – to calculate consolidated metrics.
🔹 It’s new, the concepts and supporting apps are not always easy to work with.

𝐈𝐬 𝐢𝐭 𝐛𝐞𝐭𝐭𝐞𝐫?

Like any new approach, there are some things that are better and some that take some getting used to.

But after using power since 2018, I think it’s the most effective way to train and race.

𝑺𝒉𝒐𝒖𝒍𝒅𝒏’𝒕 𝒚𝒐𝒖 𝒃𝒆 𝑹𝒖𝒏𝒏𝒊𝒏𝒈 𝒘𝒊𝒕𝒉 𝑷𝒐𝒘𝒆𝒓?

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Does running power really measure your effort?

A runner 'Running with Power'
A runner 'Running with Power'

𝐃𝐨𝐞𝐬 𝐫𝐮𝐧𝐧𝐢𝐧𝐠 𝐩𝐨𝐰𝐞𝐫 𝐫𝐞𝐚𝐥𝐥𝐲 𝐦𝐞𝐚𝐬𝐮𝐫𝐞 𝐲𝐨𝐮𝐫 𝐞𝐟𝐟𝐨𝐫𝐭?

No.

Running power provides numbers that 𝑟𝑒𝑝𝑟𝑒𝑠𝑒𝑛𝑡 your effort.

𝐃𝐨𝐞𝐬 𝐭𝐡𝐚𝐭 𝐦𝐞𝐚𝐧 𝐫𝐮𝐧𝐧𝐢𝐧𝐠 𝐩𝐨𝐰𝐞𝐫 𝐢𝐬 𝐦𝐞𝐚𝐧𝐢𝐧𝐠𝐥𝐞𝐬𝐬?

No, as long as the numbers are repeatable and valid:
🔹 Repeatable? The same effort under the same conditions gives the same result.
🔹 Valid? The numbers are highly correlated to an existing ‘gold standard’.

The Stryd footpod has been independently validated and found to produce repeatable numbers that are highly correlated with O2 consumption (a gold standard for measuring exercise energy consumption).

Wrist-based power has not been independently validated. However, I ran my own (N=1) study during 2024 and 2025, comparing wrist-based power from Garmin, Coros and Apple to Stryd. I found they produce repeatable numbers that, for most recreational runners, are correlated to the Stryd footpod.

𝐒𝐨 𝐑𝐮𝐧𝐧𝐢𝐧𝐠 𝐏𝐨𝐰𝐞𝐫 𝐢𝐬𝐧’𝐭 𝐦𝐞𝐚𝐧𝐢𝐧𝐠𝐥𝐞𝐬𝐬?

Far from it.

Running power numbers CAN be used as a measure of how hard you’re working when you run.

And once you can measure your effort, that’s when the real magic begins.

𝑺𝒉𝒐𝒖𝒍𝒅𝒏’𝒕 𝒚𝒐𝒖 𝒃𝒆 𝑹𝒖𝒏𝒏𝒊𝒏𝒈 𝒘𝒊𝒕𝒉 𝑷𝒐𝒘𝒆𝒓?

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Does running power really measure your effort?

What is Power?

A running 'Running with Power'
A running 'Running with Power'

𝐖𝐡𝐚𝐭 𝐢𝐬 𝐏𝐨𝐰𝐞𝐫?

Running power is still relatively new.
It’s not running with a powerful stride or looking powerful when you run.

Instead, power is just another name for ‘effort’ – at least, that’s the simplest way I’ve found to describe it.

⚡ Second-by-second as you run, power provides numbers representing your effort.

Run harder, and the numbers increase; run easier, and they decrease.
… whether you’re running on the flat, over hills, or on a windy day, power shows how hard you’re working.

𝐈𝐟 𝐩𝐨𝐰𝐞𝐫 𝐢𝐬 𝐣𝐮𝐬𝐭 𝐲𝐨𝐮𝐫 𝐞𝐟𝐟𝐨𝐫𝐭, 𝐰𝐡𝐲 𝐮𝐬𝐞 𝐢𝐭?

Because there’s magic in the numbers.

Once you can measure your effort, all sorts of things become possible – you can:
✅ assess your running fitness (and re-assess it) at any point in your training plan.
✅ ensure your training stays productive by setting workout targets based on your current fitness, rather than on a hopeful goal time.
✅ reduce your risk of injury using completed workouts to track your training load.
✅ personalise your race-day targets to achieve the best result you’re capable of on the day.

𝐖𝐡𝐢𝐜𝐡 𝐦𝐞𝐚𝐧𝐬?

⚡ Your training and racing is matched to 𝑦𝑜𝑢. It’s based on 𝑦𝑜𝑢𝑟 fitness and capabilities. There really is magic in those numbers.

𝑺𝒉𝒐𝒖𝒍𝒅𝒏’𝒕 𝒚𝒐𝒖 𝒃𝒆 𝑹𝒖𝒏𝒏𝒊𝒏𝒈 𝒘𝒊𝒕𝒉 𝑷𝒐𝒘𝒆𝒓?

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