15-Minute Ab Workout You Can Do Anywhere (No Equipment)
A real core workout does more than crunches — here's a short one that covers all the bases.
Quick honest note first: visible abs come mostly from diet, not from how many crunches you do — you can't spot-reduce fat off your stomach. But a strong core is still worth training on its own merits: it stabilizes your spine, protects your lower back, and shows up in almost everything else you do physically.
What a good core workout actually needs
Most people only train one function of the core: flexion (crunching forward). A complete circuit covers four:
- Flexion — bending the spine forward against resistance (V-ups)
- Anti-extension — resisting your lower back from arching (planks, dead bugs)
- Anti-rotation — resisting your torso twisting (plank shoulder taps)
- Isometric holding — sustained tension under load (hollow body hold)
The 15-minute circuit
Do each move for the listed time or reps, rest 15 seconds between exercises, and complete the full circuit 3 times through (roughly 15 minutes including rests).
Form notes that matter more than reps
- Hollow body hold: Press your lower back into the floor the whole time. If it lifts off, bend your knees to make it easier — that's a sign the position is being held correctly, not a shortcut.
- Dead bug: Move slowly enough that your lower back never arches off the floor. Slower and controlled beats fast and sloppy every time.
- Plank shoulder taps: Keep your hips as still as possible — the whole point is resisting rotation, not creating it.
- V-ups: If a full V-up is too hard, bend your knees toward your chest instead of keeping legs straight. Same benefit, easier lever.
How to progress this circuit
Once three rounds feels manageable, add a fourth round, extend hold times by 10 seconds, or slow the tempo on the V-ups and dead bugs. Two or three sessions a week is plenty — the core recovers quickly, but it still needs recovery.
Want this built into a full workout instead of on its own? The ab workout generator builds a complete session around your available time and difficulty level automatically.
Optional gear that helps
The workout above needs no equipment. Two optional extras that help:
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Exercise mat
Makes floor work like planks, bridges and dead bugs more comfortable on hard floors.
Look for 6-10 mm thickness and a non-slip surface.
See options on Amazon.caAb wheel
One of the hardest core exercises you can do at home. Start with short rollouts from your knees.
A wide or dual wheel is more stable for beginners. Many come with a knee pad.
See options on Amazon.ca
Frequently asked questions
Will 15 minutes of ab work actually make a difference?
Yes, if done consistently. Fifteen minutes of focused, well-structured core work two to three times a week is enough to build real strength and stability over a few months — consistency matters far more than session length here.
Should I do this circuit before or after a full workout?
After, generally. Training your core hard before a full lower- or upper-body session can leave it too fatigued to properly stabilize your spine during compound lifts like squats or deadlifts, which raises injury risk.
My lower back hurts during some of these moves — what should I do?
Stop that specific exercise and swap in a gentler variation — bent-knee dead bugs instead of straight-leg ones, or a shorter plank hold. Lower back discomfort during core work often means the movement is loading the spine instead of the target muscles; see a physical therapist if it persists.