Coach John Forbes | Episode 15 - Shredded Six Pack
4:25Published on December 20, 2018
Countdown part II: Do each exercise as quickly as you can. Rest is at your leisure. 100 crunches 90 flutter kicks 80 cross core planks 70 supermans 60 rocking planks 50 leg lifts 40 full sit-ups 30 bicycle crunches 20 hammerheads 10 inchworms