Are you looking for a way to flatten and tighten your stomach, reduce bloating and achieve that coveted “sucked-in” look? The stomach vacuum exercise is one of the least talked about moves out there.
You may have heard rumours that it’s “better than 100 crunches” for getting a flat stomach. And it kind of is, as long as you do it correctly.
Most stomach exercises (crunches, sit-ups, twisting, etc.) target the rectus abdominis, also known as the six-pack muscle. Do too many of these exercises, however, and you’ll end up with a thicker waist.
However, stomach vacuum exercises target the transverse abdominis, the deepest layer of abdominal muscle. Also known as the body’s natural corset, strengthening this muscle sucks in your waist by pulling your abdominal wall inwards towards your spine and tightening your waist.
What is the Stomach Vacuum Exercise?
The stomach vacuum exercise is a type of core exercise involving isometric positions, or static holds. It involves pulling the belly button towards the spine while fully exhaling, creating a ‘hollow’ or ‘vacuum’ effect in the abdomen. Bodybuilders (think Arnold Schwarzenegger in his prime), gymnasts and fitness models have used it for decades to achieve an extremely tight waist.
How to Perform the Stomach Vacuum Exercise Correctly
This exercise can be done in four different positions — choose the one that feels best for you. Begin with the easiest position (lying down) and progress to standing as you become stronger.
Position 1: Lying Down (Best for Beginners)
- Lie on your back on a mat or bed with your knees bent and your feet flat on the floor, hip-width apart.
- Relax your arms by your sides or place them on your stomach to feel the contraction.
- Exhale all the air from your lungs completely, pushing out every last bit.
- Without inhaling, pull your belly button in towards your spine as far as possible (imagine trying to touch your navel to your backbone).
- At the same time, pull your stomach upwards towards your ribs and feel the deep vacuum sensation.
- Hold the contraction for 10–30 seconds (start with 10–15 seconds).
- Relax and breathe normally. Rest for 20–30 seconds.
- Repeat 3–5 times.
Position 2: Sitting (Desk or Chair Version)
- Sit up straight in a chair with your feet flat on the floor.
- Exhale all the air from your lungs.
- Pull your belly button in and up and hold for 10–30 seconds.
- Relax and breathe. Repeat 3–5 times.
Position 3: Standing (Most Functional & Advanced)
- Stand tall with your feet hip-width apart and your core lightly engaged.
- Exhale completely.
- Pull your belly button in and up and hold for 15–40 seconds.
- Relax. Repeat 3–5 times.
Position 4: On All Fours (Advanced Activation)
- Get into a position on your hands and knees with your back in a neutral position.
- Exhale all the air.
- Pull your belly button in towards your spine and up, and hold for 15–40 seconds.
- Relax. Repeat 3–5 times.
Key Form Tips for Maximum Results
- Never breathe in during the hold — keep your breath out.
- Focus on engaging your deep abdominal muscles only — don’t tense your glutes, thighs, shoulders or chest.
- Keep your ribcage relaxed and don’t suck in your chest.
- Start with short holds — even 5–10 seconds is great at first.
- Increase the hold time by 5–10 seconds every few days.
What Makes the Stomach Vacuum Exercise Better Than Crunches?
Trains the Transverse Abdominis (Inner Corset)
The transverse abdominis is the deepest of the abdominal muscles. Strengthening this muscle pulls the entire abdominal wall inwards, reducing the ‘pooch’ appearance even when relaxed. Studies (from the Journal of Orthopaedic & Sports Physical Therapy) show that it improves core stability more effectively than many traditional abdominal exercises.
Reduces Waist Size Visually (Without Adding Bulk)
Unlike crunches, which can cause the rectus abdominis to hypertrophy (thicken), making the waist appear blockier over time, vacuums create a slimmer silhouette by improving muscle tone and control without adding visible bulk.
Improves Posture and Reduces Bloating
It activates the deep core muscles that support the spine, resulting in better posture (less anterior pelvic tilt) and a flatter-looking stomach. It also helps with controlling diaphragmatic breathing, which reduces bloating and improves digestion.
Better Core Stability and Lower Back Health
This strengthens the deep core system, which protects the spine. This makes it great for preventing lower back pain and improving performance in other exercises, such as squats, deadlifts, planks and glute routines.
No Equipment Needed – Do It Anywhere
You can use it while standing, sitting or lying down, and even while driving or working at your desk. It’s perfect for home workouts or busy days.
Visible Results Faster Than You Think
Many people notice a tighter, flatter midsection within 7–14 days of daily practice, especially when combined with walking, clean eating and avoiding foods that cause excessive bloating.
