How many should I draw for a core circuit?

Four to six movements is a usual circuit. Draw until you have one that pushes against rotation, one that resists extension, and one that flexes — a set of six all doing the same thing is a long way of training one pattern.

Is core work the same as ab work?

Not quite. The abdominal muscles are part of it, but so are the obliques, the deep stabilisers and the lower back, and several movements here load those rather than the ones you can see.

Core Exercise Generator

Suggests a single core exercise — planks, twists, leg raises — for finishing off a workout or building a dedicated core circuit.

Seed (optional)

A word rebuilds the same list later. Leave it empty for a fresh draw each time. A seed is for repeatability, not secrecy — it makes the list predictable on purpose.

Don't repeat what I've already seen

Your result will appear here.

What this generator does

Draws only from movements that load the trunk, so it is the one to use when the rest of the session is planned and only the core work is open. Narrower than the general gym generator by design.

What you'll get

This generator draws from a hand-checked list of 12 entries. Here is a spread of 6 of them, so you can see the style before you generate:

Plank
Bicycle crunch
Dead bug
Leg raises
Flutter kicks
Standard crunch

A fixed sample of the list, not a live draw — your own results are picked at random from all 12, without repeating until the list runs out. Original HEKNO-curated core-exercise list. Last reviewed 2026-07-25.

How to use this tool

Press generate for an exercise.
Generate again to build a full core circuit.

Common use cases

Building a core workout
Finishing off a training session
Quick ab-exercise inspiration

How this generator works

Every movement on the list loads the trunk against something — gravity, a rotation, or the weight of your own legs — and they are grouped by which of those they use. Drawing repeatedly gives a circuit that varies the demand rather than repeating one kind of contraction, which is what a core session usually gets wrong.

Limitations and good to know

It suggests a movement, not a dose. How many, how long and how hard are yours to set, and they matter more here than the choice of exercise.
There is no progression built in. The list does not know what you did last week, so a circuit built from it repeats at whatever difficulty you bring to it.
Movements are described by their common names, which vary by gym and by country — what one coach calls a dead bug another calls something else entirely.

Practical tips

Quality beats duration for core work — a shorter set held properly does more than a long one with a sagging back.
Breathe throughout rather than holding your breath, which is the most common fault in braced positions.

Entries are chosen with your browser's cryptographic random number generator, so every entry on the list is equally likely. How Generate Random works.

Not personalised fitness or medical advice — check with a qualified professional before starting a new exercise routine.

Frequently asked questions

How many should I draw for a core circuit?: Four to six movements is a usual circuit. Draw until you have one that pushes against rotation, one that resists extension, and one that flexes — a set of six all doing the same thing is a long way of training one pattern.
Is core work the same as ab work?: Not quite. The abdominal muscles are part of it, but so are the obliques, the deep stabilisers and the lower back, and several movements here load those rather than the ones you can see.