Men: Do You Know What Exercises Worsen Belly Doming? Learn About Diastasis Safe Exercises

By Julie Tupler, RN  |  Updated September 20, 2026

Why some exercises make the dome worse

Your rectus muscles are the two long muscles at the front of your abdomen. The connective tissue between them is the midline. If the muscles are apart, a strong forward push can stretch that middle tissue more.

The problem is not that an exercise feels hard. The problem is the direction of the pressure. When the belly pushes out, the force is going into the weakest part of the abdominal wall.

Moves I tell men to pause

Crunches and full sit-ups

These lift the shoulders and push the abdomen forward. If you already see a ridge, more repetitions can keep training the same outward pattern.

Floor planks and push-ups

Your belly faces the floor. Gravity and the weight inside the abdomen press on the midline. Floor planks are especially hard to control when the transverse muscle is weak.

Forceful crossover twisting

Fast twisting and crossover crunches pull the two sides of the rectus muscles in different directions. I call this a shearing motion.

During the first six weeks of the Tupler Technique® program, I also tell clients to avoid running and jumping. That time is for learning the program and taking repeated stress off the midline.

What you can do instead

• Walk. A treadmill is fine if you feel steady.
• Use an elliptical or upright bike. Keep your ribs over your hips and do not hold your breath.
• Try wall push-ups. Stand close enough to keep the belly from doming.
• Practice Tupler Technique® transverse exercises. Learn the inward movement before adding a harder workout.

A diastasis-safe workout begins in week six of the program. “Safe” still depends on your form. Watch the midline. If it rises, make the exercise easier or stop.

Use this four-question exercise check

• Does my belly dome or push forward?
• Am I holding my breath?
• Can I keep my ribs from flaring?
• Can I finish the movement without pain?

If the answer shows loss of control, change the move. Reduce the weight. Stand more upright. Shorten the range. Or choose a different exercise.

This is a short-term training change

You are not giving up exercise forever. You are giving the connective tissue a better place to heal while you strengthen the muscle that manages pressure.

Once your control improves, you can re-check your diastasis and add movements step by step. The goal is a stronger core that works during lifting, sports, and daily life—not just a flatter-looking belly.

Stop and get medical help when

Exercise should not cause a sharp or growing pain. Get checked for a hard or tender bulge, sudden weakness, vomiting, fever, or a bulge that does not relax. Those signs need a clinician, not another workout.

Julie Tupler sources used

• Together Tummy, Chapters 1, 2, and 4 — Julie Tupler, RN
• Will Planks Make My Diastasis Larger? — Julie Tupler / DiastasisRehab
• Diastasis Recti in Men — DiastasisRehab