Does the X3 program work on my core and abs?Updated a month ago

While there are no ab-specific exercises, research indicates that the deadlift and the front squat exercises activate the abdominal muscles more effectively than ab-specific exercises. Abs are stabilizing muscles, which grow when used as such.

The X3 Bar 12-week program stimulates these even more because the weight goes up, as you move into stronger ranges. With X3, there is more activation, more natural growth hormone triggering (this is a growth hormone axis), and more ab growth.