Jan 9, 2012 2:35 PM:
Did 2 sets @ 40 seconds each. My abs are screaming after doing this one. Incredible exercise. Highly recommend.
Did 2 sets @ 40 seconds each. My abs are screaming after doing this one. Incredible exercise. Highly recommend.-See Less
Apr 20, 2012 1:32 PM:
hey what is a good amount of sets for this and for how long second wise and how do you count just counting in your head or count and pause?
hey what is a good amount of sets for this and for how long second wise and how do you count just counting in your head or count and pause?-See Less
of people found this review helpful
Jan 9, 2012 2:35 PM: Did 2 sets @ 40 seconds each. My abs are screaming after doing this one. Incredible exercise. Highly recommend.