Abs Defined is a focused supine core session built around four exercises that work the abdominal wall from multiple angles without ever leaving the floor. Reverse crunches, crunch kicks, raised leg circles, and a 10-count hold run in sequence across 3, 4, or 5 sets with up to 2 minutes of rest between sets. The exercise selection is deliberate: each movement targets a different aspect of core function, from the posterior pelvic tilt of the reverse crunch to the rotational stability demanded by the leg circles, building a comprehensive abdominal session from a short, clean list.
Reverse crunches drive the work into the lower abdominal region by curling the pelvis toward the ribcage rather than the ribcage toward the pelvis - the reverse of a standard crunch. This posterior pelvic tilt creates a compression force through the lower abs that standard crunches don't reach, and it requires the lower back to stay in contact with the floor throughout, making lumbar control as important as abdominal strength. Crunch kicks combine a partial sit-up with a leg extension, loading both the rectus abdominis and the hip flexors simultaneously while the alternating kick pattern adds a coordination element that prevents the movement from becoming purely mechanical. Raised leg circles shift the challenge to rotational stability - the legs moving through a circular arc while the core works to prevent the lower back from following them, which engages the obliques and the deep stabilizing muscles alongside the primary movers. The 10-count hold closes each set with pure isometric endurance at a low leg position, where the demand on the lower abs and hip flexors is at its highest.
Keep the lower back pressed into the floor on every exercise. It will try to arch. That's the workout.
To make it easier: Bend the knees during reverse crunches and crunch kicks to reduce the lever length and lower the demand on the lower back. Raise the legs higher during the 10-count hold to find a position where lumbar contact with the floor can be maintained.
To make it harder: Slow reverse crunches to a 3-count lift and a 3-count lower. Reduce leg height during the 10-count hold to just above the floor, and extend it from 10 counts to 20. Perform raised leg circles in both directions - 4 clockwise, 4 counterclockwise.
