6 thoughts on “The Complete Guide to Interval Training

  1. I sent this to my gf, she’d never heard of interval training. Cracked me up as she was explaining this app that does this “thing” where it has you sprint for 10 seconds then jog, then sprint then… 😉 I was like intervals?? I adore intervals. Though I do love my endurance runs too, gotta keep shaking it up.

Leave a reply to fitnessdiva21 Cancel reply