Killer abs!
Crunches 1 min, Plank on forearms 1 min, Right Side plank 1 min, Left Side plank 1 min, Russian twist 1 min
Rest 1 min, repeat 2 more times with rest in between
Killer abs!
Crunches 1 min, Plank on forearms 1 min, Right Side plank 1 min, Left Side plank 1 min, Russian twist 1 min
Rest 1 min, repeat 2 more times with rest in between