Check out this abtastic video done by SportBU's PT Heidi. See if you can complete this Christmas chalenge yourself.
500 rep ab challenge
- 20 sit ups
- 20 reverse crunches
- 20 plank shoulder taps
- 20 mountain climbers
- 20 supermans
Rest then repeat X5
Tag us with your attempts across our social media channels using our tag @SportBU. #xmaschallenge #workout