Twist boards aren’t designed to help you achieve a six-pack, or highly-defined abs . Unless you use handheld weights while you’re twisting, they also won’t help to define the muscles in your biceps or triceps.
Twist boards aren’t designed to help you achieve a six-pack, or highly-defined abs . Unless you use handheld weights while you’re twisting, they also won’t help to define the muscles in your biceps or triceps.