Why Ab Work Often Triggers Leaks or “Coning”
Classic ab moves—planks, sit-ups, leg raises—boost intra-abdominal pressure (IAP). Your core is a cylinder: the diaphragm on top, deep abdominals and back muscles as the walls, and the pelvic floor as the base. When pressure surges and the base is late, over-clenched, or your breath is held, pressure can push downward (leaks, heaviness) or out through the belly midline (coning/doming with diastasis).
The answer isn’t to avoid core work. It’s to reroute pressure with breath and stacking, then use smart progressions so the exercise meets your current capacity.
The Non-Negotiables: Technique That Protects Your Pelvic Floor
1) 360° Diaphragmatic Breathing
- Inhale (through the nose): lower ribs expand front/sides/back (not just belly).
- Exhale (through pursed lips): long, steady; lower belly naturally slims.
- Keep jaw/neck relaxed; ribs stay stacked over hips.
Why: 360° expansion spreads pressure evenly, so it doesn’t stampede down into the pelvic floor or out through the midline.
2) Exhale Through Effort (“Blow as You Go”)
During the concentric or hardest part, exhale and lightly engage (10–30%) through the deep core. Avoid hard breath holds for these drills.
3) The Green / Yellow / Red Test
- Green: No leaks, heaviness, doming, or pain during or after → progress.
- Yellow: Subtle pressure signs → shorten the lever, raise the incline, slow down, cut reps/holds.
- Red: Leaks, heaviness, bulge/doming that doesn’t resolve with cues → stop and regress.
4) Stacking & Setup
- Ears–ribs–hips in line.
- No rib flare or tail tuck.
- Move slow enough to control breathing; no breath-holding.
Exercise Library: From Easiest to Hardest (Choose Your Entry Point)
Start where you’re Green. Master the breath, then add time/reps/lever length.
A. Foundational Anti-Extension & Marching
Supine 90/90 Heel Taps (Dead Bug Base)
- Exhale to float one heel down; inhale to return.
- Focus on quiet ribs and a gentle lower-belly “zip” on exhale.
- Progression: Extend knee further; Regression: Tap closer to hips.
Heel Slides
- Heels on floor. Exhale as you slide one heel out; inhale to return.
- Progression: Add mini-march (heel just off floor).
- Regression: Shorten slide distance.
Marching Bridge (Low Lift)
- Hips barely off floor; exhale to hold the pelvis stable as you march.
- Progression: Hold longer; Regression: Normal bridge holds with exhales.
B. Inclined Planks & Anti-Rotation
Incline Forearm Plank (hands or forearms on bench/wall)
- Exhale softly every 3–4 seconds; no bracing to purple.
- Progression: Lower the incline; Regression: Wall plank.
Pallof Press (Anti-Rotation)
- Cable/band at chest height. Exhale as you press arms forward; fight rotation.
- Progression: Step farther; Regression: Closer to anchor.
Side Plank on Bench (Knees Bent)
- Hips stacked; exhale to lift, keep ribs down.
- Progression: Feet stacked on bench; Regression: Side-lying hip lift.
C. Floor Planks & Dynamic Control
High Plank (Hands on Floor)
- Spread fingers, protract shoulder blades gently, exhale rhythmically.
- Progression: Shoulder taps (slow); Regression: Elevate to a box.
Dead Bug (Full)
- Opposite arm/leg extend on exhale; inhale to return.
- Progression: Add light band at hands; Regression: Heel taps only.
Bird Dog (Quadruped)
- Exhale as you reach; no sway in low back.
- Progression: Hover knees (bear); Regression: Shorten reach.
D. Curl-Up & Lever-Loaded Variations (Use With Care)
Modified Curl-Up
- One hand across midline to support, exhale as head/shoulders lift slightly.
- Progression: 2–3s controlled exhale per lift; Regression: Stick with anti-extension moves until Green.
Hollow Body Progressions (Only if Symptom-Free)
- Start with tuck hollow (knees in), exhale to hold.
- Progression: One leg long → both legs long → arms overhead.
- Stop at first sign of doming/heaviness.
The 4-Week Pelvic-Smart Core Plan
3 days/week, ~20–25 minutes. Only progress if you remained Green during the session and later that day. If Yellow/Red shows up, stay or regress a step.
Week 1 — Build the Breath & Stack
- 360° Breathing + Rib Wrap: 5 breaths x 2
- Heel Slides: 3×8/side (exhale out)
- Dead Bug Heel Taps: 3×8/side
- Incline Forearm Plank (bench): 3×20–30s
- Pallof Press (easy): 3×10/side
- Side-Lying Hip Lift: 3×8/side
Week 2 — Add Anti-Rotation & Longer Holds
- 360° Breathing: 5 breaths x 1
- Dead Bug (opposite arm/leg): 3×8/side
- Incline Plank (lower box): 3×25–35s
- Pallof Press (medium): 3×12/side
- Side Plank (bench, knees): 3×15–20s/side
Week 3 — Floor Work Introduced
- Dead Bug (full): 3×10/side
- High Plank (floor): 4×20s (exhale every 3–4s)
- Bird Dog: 3×8/side (3s reach)
- Pallof Press (medium+): 3×12/side
- Optional: Modified Curl-Up 2×8 (only if fully Green)
Week 4 — Controlled Challenge
- Dead Bug (band-resisted): 3×10/side
- High Plank with Slow Shoulder Taps: 4×16 taps total
- Side Plank (bench feet / or floor knees): 3×20–25s/side
- Hollow Body Tuck Holds: 3×15–20s (only if no doming; otherwise skip)
- Pallof Press (walkouts): 3×6/side
Progression rules: Add 5–10s to holds or 1–2 reps per set only if all signals stayed Green. If any Yellow/Red appears, drop the lever (shorter reach, higher plank) or decrease volume and try again next session.
Troubleshooting Guide (Fast Fixes)
-
Coning/Doming at Midline
Shorten the lever (bend knees, arms closer), raise plank height, or slow tempo. Ensure exhale drives the effort and ribs stay stacked. -
Leaks or Heaviness
Check for unconscious breath holds. Switch to an incline or reduce hold time. Try The Knack (gentle 20–30% pelvic floor lift) right before the hardest moment, then fully release between reps/holds. -
Neck or Back Tension
You’re likely over-bracing. Relax jaw, soften shoulders, and lengthen the exhale. Reduce range of motion on curl-ups. -
Fatigue Clench
Symptom creep at end of sets? Cut sets 1–2 reps earlier, add a set instead, or lengthen rest. -
“I Only Leak on Hard Days”
That’s timing/pressure. Do a 3–5 minute breath prep (360° + dead bug taps) before your main workout and keep exhale-through-effort on every rep.
Sample “Any Day” 10-Minute Core Finisher (Pelvic-Smart)
- Dead Bug (full) — 40s on / 20s off
- Incline Plank — 40s on / 20s off
- Pallof Press (walkouts) — 40s on / 20s off
- Side Plank (bench knees) — 40s on / 20s off per side
Repeat once if Green. If Yellow, keep one round. If Red, scale and stop.
When to Get Extra Help
- Persistent leaks, heaviness, or bulging despite scaling.
- Visible coning that doesn’t respond to breath/stack changes.
- Pain during or after core sessions.
A few sessions with a pelvic health PT can quickly fine-tune timing and exercise selection so you can progress confidently.
Bottom Line
You can train your abs and protect your pelvic floor. Lead every rep with 360° breathing, exhale through effort, and a sane progression ladder. Use the Green/Yellow/Red test to choose your starting point and scale up only when your body says go. Done right, core training becomes the engine of a stronger back, flatter midline tension, and leak-free movement in everything you do.