But how many of us have gone out and said “I’m doing a fartlek today” and actually followed through with it? The original ...

Sometimes simplicity brings the best results, which is why runners in the know are adding “fartlek” training to their routine ...

The interval technique known as Fartlek will keep things interesting (and improve your fitness). Fartlek training involves running at different speeds for intervals, but that’s kind of where the ...