The Swedish word for ‘speed play’, fartlek is one of the most common training sessions that I use with my athletes. The history of fartlek training dates back more than 80 years, when coaches and ...
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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 ...
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