Also on these boards
HIT - Three-minute warm-up. Sprint for 20 seconds, rest (walk) for 10 seconds. Repeat the sprint/walk cycle for a total of eight cycles. Alternatively run 2 minutes hard, 1 minute easy. Add stretching, flexibility, and strength training routines for "cool down."
These 27 Workout Diagrams Are All You Need To Get In Shape This Summer | These 27 Workout Diagrams Are All You Need To Get In Shape This Summer