10 Best Medicine Ball Exercises for Lower Abs.

The lower abs — the bottom portion of the rectus abdominis — are the hardest part of the core to actually feel working. Most exercises flex the upper spine toward the hips, which loads the top of the muscle and leaves the lower section mostly passive. To engage the lower abs directly, the movement has to work the other way: hips and legs traveling toward the torso.

A medicine ball changes this by adding resistance and extending the lever arm — making these movements significantly harder than bodyweight versions.

Quick Answer: The best medicine ball exercises for lower abs are leg raises, reverse crunches, flutter kicks, V-ups, dead bugs, and the hollow hold. All load the lower rectus abdominis and transverse abdominis by bringing the legs and hips toward the torso — the pattern standard crunches don’t reach.

What weight to use: Beginners: 2–4 kg | Intermediate: 4–6 kg | Advanced: 6–8 kg

Use a standard medicine ball — not a slam ball, which is built for throws. When the ball sits between your feet, start at the lighter end — the lever arm is long and the hip flexor demand increases sharply.

10 Medicine Ball Exercises for Lower Abs

1. Medicine Ball Leg Raises

Muscles worked: Lower rectus abdominis, hip flexors Level: Beginner

Squeezing the medicine ball between your feet increases resistance on the lower abs without changing the movement pattern of a standard leg raise.

How to do it:

1. Lie on your back, arms by your sides or hands tucked under your glutes
2. Squeeze the medicine ball between your feet
3. Press your lower back into the floor and keep it there
4. Raise both legs slowly to 90 degrees
5. Lower with control, stopping just before your heels touch the floor

Sets/Reps: 3 × 10–12 Form cue: If your lower back arches, the ball is too heavy. Drop the weight before adding reps.

2. Medicine Ball Reverse Crunch

Muscles worked: Lower rectus abdominis, transverse abdominis Level: Beginner–Intermediate

A reverse crunch curls the pelvis toward the chest — the opposite of a standard crunch, and the movement the lower abs respond to. The ball between the knees prevents the hips from swinging.

How to do it:

1. Lie on your back, knees bent, feet off the floor, shins parallel to the ground
2. Squeeze the medicine ball between your knees
3. Flatten your lower back against the floor
4. Exhale and curl your pelvis up, bringing your knees toward your chest — your lower back lifts slightly at the top
5. Lower your hips back down slowly

Sets/Reps: 3 × 12–15 Form cue: Small, deliberate movement. If the legs swing, momentum has taken over.

3. Medicine Ball Flutter Kicks

Muscles worked: Lower rectus abdominis, hip flexors Level: Beginner–Intermediate

The legs never fully rest during flutter kicks, which keeps the lower abs under load the entire set. Hold the ball at your chest, or extend it overhead to increase the difficulty.

How to do it:

1. Lie on your back, medicine ball held at your chest
2. Lift both legs 6–8 inches off the floor, lower back pressed flat
3. Kick your legs alternately up and down in shallow, controlled strokes
4. Drive the movement from your hips, not your knees

Sets/Duration: 3 × 30–45 seconds Form cue: Keep the kicks shallow. Wide bicycle-style movement shifts the load off the lower abs.

4. Medicine Ball V-Up

Muscles worked: Rectus abdominis (full), hip flexors Level: Intermediate

Both legs and the torso lift at the same time. Holding the ball overhead adds load through the full range, and passing it to your feet at the top keeps the abs working on the way back down.

How to do it:

1. Lie on your back, legs straight, medicine ball held overhead with arms extended
2. Lift your legs and torso simultaneously, folding at the hips
3. Reach the ball toward your feet — or pass it between your hands and ankles
4. Lower both back down slowly without touching the floor

Sets/Reps: 3 × 8–10 Modification: Bend your knees slightly if the straight-leg version is too demanding.

5. Medicine Ball Dead Bug

Muscles worked: Transverse abdominis, lower rectus abdominis Level: Beginner–Intermediate

The dead bug resists extension rather than creating it. A 1996 study by Hodges and Richardson showed the transverse abdominis fires before limb movement to stabilize the spine — the dead bug trains that response directly. Pressing the medicine ball overhead increases the demand on that same muscle.

How to do it:

1. Lie on your back, knees bent at 90 degrees, shins parallel to the floor
2. Press the medicine ball overhead with both hands, arms straight
3. Extend your right leg out straight while lowering your left arm overhead
4. Lower back stays in contact with the floor — the moment it lifts, stop and reset
5. Return and switch sides

Sets/Reps: 3 × 8–10 per side Form cue: Slow the movement down. Speed breaks lower back contact and removes the abs from the exercise.

6. Medicine Ball Hollow Hold

Muscles worked: Transverse abdominis, lower rectus abdominis Level: Intermediate

The hollow hold is isometric — no movement, just sustained contraction. Holding the ball overhead increases the lever arm, which means the lower abs have to work harder to keep the lower back against the floor.

How to do it:

1. Lie on your back, medicine ball held overhead, arms extended
2. Press your lower back into the floor
3. Lift your shoulders and legs a few inches off the ground
4. Hold. Keep breathing — don’t hold your breath

Sets/Duration: 3 × 20–40 seconds Form cue: Lower back lifts? Bend your knees or bring the ball to your chest and work back up from there.

7. Medicine Ball Knee Tuck to Leg Extension

Muscles worked: Lower rectus abdominis, hip flexors, transverse abdominis Level: Intermediate

A reverse crunch followed immediately by a leg extension — two lower abs movements in one continuous rep.

How to do it:

1. Lie on your back, medicine ball held at your chest
2. Pull both knees toward your chest at 90 degrees
3. Extend your legs straight out until parallel to the floor
4. Pull the knees back in
5. That is one rep

Sets/Reps: 3 × 10–12 Form cue: Only extend as far as your lower back stays flat. Partial range beats full extension with an arched back.

8. Medicine Ball Pass (Hands to Feet)

Muscles worked: Rectus abdominis (full), lower abs Level: Intermediate–Advanced

The lowering phase — both arms and legs extending back toward the floor — is where the lower abs work hardest. The ball pass between hands and feet keeps the load on through the full movement.

How to do it:

1. Lie on your back, medicine ball held overhead, arms extended
2. Lift your legs and torso together, bring the ball to meet your feet
3. Pass the ball to hold between your ankles
4. Lower both arms and legs slowly — neither touches the floor
5. On the next rep, lift back up and pass the ball to your hands

Sets/Reps: 3 × 6–8 Form cue: Most people rush the lowering phase. That’s where the real work is — slow it down.

9. Medicine Ball Plank with Knee Drive

Muscles worked: Transverse abdominis, lower rectus abdominis Level: Intermediate

The medicine ball under your hands creates instability a flat floor doesn’t — your core has to stabilize before the knee drive even starts.

How to do it:

1. High plank, both hands gripping the medicine ball on the floor
2. Body in a straight line — hips level
3. Drive your right knee toward your chest, pause, return
4. Alternate sides at a controlled pace

Sets/Reps: 3 × 10 per side Form cue: If your hips rotate or shift, the core isn’t holding — reset before the next rep.

10. Medicine Ball Overhead Crunch with Hip Raise

Muscles worked: Upper and lower rectus abdominis, transverse abdominis Level: Advanced

Upper body crunches while the hips lift — both ends of the rectus abdominis contract at once. Don’t attempt this until the reverse crunch and hollow hold feel solid.

How to do it:

1. Lie on your back, knees bent, feet flat, medicine ball held overhead
2. Curl your upper back off the floor while pressing your lower back down and raising your hips simultaneously
3. The ball moves forward as your pelvis tilts up
4. Lower with control

Sets/Reps: 3 × 10–12 Form cue: This isn’t a sit-up. The upper body movement is small — both ends of the abs pull inward at the same time, not a swing upright.

10-Minute Lower Abs Workout Circuit

2–3 rounds. Rest 45–60 seconds between rounds.

Exercise	Reps / Duration
Medicine Ball Leg Raises	10 reps
Medicine Ball Reverse Crunch	12 reps
Medicine Ball Flutter Kicks	30 seconds
Medicine Ball Dead Bug	8 reps per side
Medicine Ball Hollow Hold	20–30 seconds

Beginners: Start with exercises 1–3 for the first 3–4 weeks. Add exercises 4 and 5 once your lower back stays flat consistently through the first three.

Use a weight you can control through every rep. If lower back contact breaks down mid-circuit, reduce the weight. Apply progressive overload by adding one round or increasing ball weight every 2–3 weeks — not both at once.

Frequently Asked Questions