Training Tip with Carrie: Hill Repeats Today’s training tip is all about hill repeats! Moms on the Run National Fitness Director, Olympian Carrie Tollefson, claims it’s one of her favorite workouts. Listen in as she explains the advantages of hill repeats and how to do them. Training Tip with Carrie: Fartlek In the News: Kim Burggraaf, Owner of Lakeville Moms on the run