Lower Ab Exercises: 7 Moves That Actually Hit the Lower Abs

Everyone wants a lower ab move that torches the lower belly. The uncomfortable truth first: no exercise burns fat from a specific spot, so the lower stomach becomes visible when your overall body fat drops, not when you do a special crunch. That said, there is a real, defensible way to bias the lower portion of your abs, and it is worth training, because a strong lower core protects your back, steadies every lift and holds your posture together. The trick is choosing moves where the pelvis rolls up toward the ribs, rather than the ribs curling down toward the hips.

Here are seven that do exactly that, from the beginner-friendly to the genuinely hard, plus how to program them without wrecking your lower back.

The 7 best lower ab exercises

1. Reverse crunch. Lie on your back, knees bent over your hips, hands by your sides. Curl your pelvis up off the floor so your knees travel toward your chest, then lower under control without letting your feet touch down. This directly rolls the pelvis toward the ribs, which is the lower-ab pattern, and it is the move to master before anything harder. Aim for 3 sets of 12 to 15.

2. Lying leg raise. Legs straight, hands under your lower back or by your sides. Keep your lower back pressed into the floor and lower both legs toward the ground as far as you can without the back arching, then raise them back up. The moment your back peels off the floor, you have gone too low; shorten the range. This is a step up from the reverse crunch in difficulty.

3. Flutter kicks. With legs straight and just off the floor, alternate small, quick up-and-down kicks while keeping your core braced and your back flat. They keep constant tension on the lower abs and hip flexors, and they expose how well you can hold position under fatigue.

4. Dead bug. One of the safest and most underrated core moves. Learn it properly in our dead bug guide: back flat, opposite arm and leg extending slowly while your core stops your ribs and pelvis from moving. It teaches the exact bracing skill that keeps leg raises safe.

5. Hanging leg raise. The hardest and arguably the best. Hang from a pull up bar, and raise your legs, ideally straight, up in front of you by curling your pelvis, not just lifting at the hip. Start with knees bent (hanging knee raise) and progress to straight legs. Grip and shoulders often give out first; see the full hanging leg raise guide for the build-up.

6. Mountain climbers. From a press-up position, drive one knee then the other toward your chest at pace. They add a cardio element while the lower abs work to draw each knee in and stabilise the pelvis. Our mountain climbers guide covers pacing and form.

7. Ab wheel rollout. Advanced, and brutal on the whole front of the core. From your knees, roll an ab roller forward as far as you can control while keeping your lower back from sagging, then pull back. Only add this once your plank and dead bug are solid.

How to actually see your lower abs

This is the part the fitness industry glosses over. Training the muscle and revealing the muscle are two different jobs. Strengthening builds the abs; a calorie deficit uncovers them. Even research that argues in favour of some localised fat loss only found an effect when abdominal exercise was combined with aerobic training, not from ab work alone (randomised trial on abdominal exercise and trunk fat), which tells you the crunches are the smaller half of the equation. So keep the ab sessions, but drive fat loss with your diet and overall activity. The NHS target of 150 minutes of moderate activity plus two strengthening sessions a week is a sensible backbone (NHS physical activity guidelines).

Common mistakes

Letting the lower back arch. On leg raises and flutter kicks, an arching back means the hip flexors and spine are taking over. Keep the back flat; reduce the range or bend the knees until you can.

Pulling with the hip flexors instead of the abs. If you only lift your legs at the hip, the abs barely work. Think about curling your tailbone up toward your ribs at the top of each rep.

Chasing huge rep counts. A hundred fast leg raises with a floppy core does less than fifteen controlled ones. Slow down, brace, and make each rep deliberate.

Skipping the anti-movement work. Moves like the plank and side plank train the abs to resist movement, which is half their real job. Include them.

A simple lower ab finisher

Tack this onto the end of two or three sessions a week:

• Reverse crunch, 3 sets of 12 to 15
• Lying leg raise, 3 sets of 10 to 12 (shorten range as needed)
• Flutter kicks, 3 sets of 30 to 45 seconds
• Plank, 2 to 3 holds of 30 to 60 seconds

Rest 45 to 60 seconds between sets, keep the lower back flat throughout, and progress by adding reps or moving to a harder variation before adding more sets.

Recommended reads

1. How to do a dead bug
2. Hanging leg raise technique
3. The plank, done properly
4. The best ab roller in the UK
5. More workout and exercise guides