The plank is a great exercise for building core strength, but it’s not the most exciting move you can do. It’s quite the opposite, in fact, with the aim being to stay as still as possible. There are plenty of ways you can vary your planks, though, and the alternating one arm plank is one that’s well worth trying.

I saw the move recommended by personal trainer Kyle Knapp on Instagram, who describes it as ‘simple but effective’. Having now tried the one arm alternating plank myself I would take issue with the idea that it’s a simple move, but it’s certainly effective for challenging your core and building strength.

You don’t need any equipment to do the alternating one arm plank, though performing the move on a yoga mat can help with grip, especially for your feet which will need to bear a

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