"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." IF THE WORD "fartlek" makes you giggle, you're not alone. But there’s nothing funny about how this style ...
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What Is Fartlek? The Simple Running Trick Backed By Science To Supercharge Your Stamina
Whether you’re training for your first 5K or looking to smash a marathon PR, fartlek could be the game-changing workout your running routine is missing. Fartlek is Swedish for “speed play,” this ...
"Fartlek training" is an invigorating way to spruce up cardio days and speed up weight loss. This training method comes from Swedish Olympian and coach Gösta Holmér and appropriately translates to ...
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