High intensity interval training packs a hard workout into a short period of time, which makes it sound like it…
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Interval Training
High intensity interval training made headlines in the 2010s with one specific claim: that short bursts of hard work can…
I rarely feel stronger or faster or more totally badarse than when I’m running a track workout with short repeats….
How’s the Lifehacker Fitness Challenge treating you? If you’re logging a ton of kilometres, great — but if you’ve slacked…
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