Core and ab exercises
18 movements that train the abs & core directly, each with setup cues, the mistakes to avoid and a substitution for every equipment type.
What the core does
The core is the whole midsection working as a unit: the rectus abdominis down the front, the obliques on the sides that rotate and side-bend, and the deep muscles that stiffen the trunk. Its main job in lifting is to resist movement — to stop the spine bending when something else is trying to bend it.
Core and ab exercises in the library
Every one links to a full form guide — setup, execution, common mistakes and what to do instead if the machine is busy.

Ab Wheel Rollout
Core

Bicycle Crunch
Obliques

Bird Dog
Core

Cable Crunch
Core

Cable Woodchop
Obliques, Core

Core Stability (Machine/Anti-Rotation)
Core

Dead Bug
Core

Farmer's Carry
Forearms, Core

Hanging Knee Raise
Core

Hanging Leg Raise
Core, Hip flexors

Hollow Body Hold
Core

Kneeling Hip Flexor Stretch
Hip flexors

Medicine Ball Slam
Core

Mountain Climber
Core

Pallof Press (Anti-Rotation)
Core, Obliques

Plank
Core

Russian Twist
Obliques

Side Plank
Obliques
How to train abs & core
Train it three or four times a week, briefly. Cover the three jobs: resisting extension (planks, rollouts), resisting rotation and side-bend (side planks, carries), and flexing against resistance (cable crunches, hanging raises). Sets of 8–15 reps or 20–45 second holds.
The mistake to avoid
Doing hundreds of sit-ups and expecting them to reveal the muscle. Visible abs come from body fat, which is a kitchen and cardio question; ab training builds the muscle that shows up when it drops.
Core and ab exercises by equipment
Whatever your gym has — or does not have.
Bodyweight
11Cable & Functional
5Free Weights
1Mobility & Stretch
1Also works the abs & core
These train something else first, but the abs & core works hard in them — worth counting toward your weekly total.
Core and ab exercises — questions people ask
What are the best abs & core exercises?
Ab Wheel Rollout, Bicycle Crunch, Bird Dog, Cable Crunch, Cable Woodchop are the movements to build a abs & core session around — they load the muscle through its full range and are easy to add weight to over time. Train it three or four times a week, briefly. Cover the three jobs: resisting extension (planks, rollouts), resisting rotation and side-bend (side planks, carries), and flexing against resistance (cable crunches, hanging raises). Sets of 8–15 reps or 20–45 second holds.
How often should I train abs & core?
Train it three or four times a week, briefly. Cover the three jobs: resisting extension (planks, rollouts), resisting rotation and side-bend (side planks, carries), and flexing against resistance (cable crunches, hanging raises). Sets of 8–15 reps or 20–45 second holds.
Can I train abs & core at home?
Yes — Ab Wheel Rollout, Bicycle Crunch, Bird Dog, Dead Bug need no equipment beyond your bodyweight. Add a band or a pair of dumbbells and most of the rest of this list opens up.
Which abs & core exercises are best for beginners?
Start with Bicycle Crunch, Bird Dog, Cable Crunch, Core Stability (Machine/Anti-Rotation). Each one has a guided or fixed path, so you can learn the pattern and add load without needing a spotter.
What is the most common abs & core training mistake?
Doing hundreds of sit-ups and expecting them to reveal the muscle. Visible abs come from body fat, which is a kitchen and cardio question; ab training builds the muscle that shows up when it drops.