Fartlek run workouts — is there benefit behind the funny-sounding name?

Fartlek run workouts — is there benefit behind the funny-sounding name?

I like mixing up my workout routine for fun and variety, so I was curious about these Fartlek run workouts. Let's look at the history and reasons to try it. The post Fartlek run workouts — is there benefit behind the funny-sounding name? appeared first on The Manual.