What it lets you do
- Carrying a full toolbox in one hand without leaning like a broken lamppost.
- Twisting round to grab something off the back seat while you're still belted in.
- Putting real power into a golf swing instead of arming it.
Back to the muscle map
Obliques
Rotation, side bending and the anti-rotation that protects your spine.
- 2
- Primary muscle
- 15
- Secondary muscle
The muscles wrapping around the sides of your waist, running on a diagonal from your ribs down to your hips.
Where you feel it
Down the sides of your waist, between your ribs and your hip. On a side plank it's a slow, steady burn, and the second they quit, your hip drops. That drop is the signal, not a suggestion.
If you skip it
Nothing puts a brake on twisting. Carry something heavy on one side and your spine bends to make up the difference, every single time.
Anatomy and function
The obliques sit on the sides of the waist in two layers. The external obliques run diagonally downward and forward; the internal obliques run underneath in the opposite direction. Working together on one side they bend the trunk sideways; working across sides they rotate it.
Their most important job in training is anti-rotation: keeping the trunk still while one arm or leg produces force. Every single-arm press, carry and row relies on the obliques. Well-trained obliques improve rotational power in sport and make the waist look tighter, not wider.
How to train it
The volume and frequency below are programming starting points for the obliques, to be adjusted to each person's level and recovery.
- Rep ranges
- 10-15 reps per side on rotations; 20-45 second holds on side planks and Pallof presses
- Frequency
- 2-3 sessions per week, often combined with abs
Key movement patterns
- Anti-rotation (Pallof press, single-arm carry)
- Anti-lateral flexion (side plank, suitcase carry)
- Controlled rotation (cable woodchop, medicine-ball throw)
- Side bend with light load
Common mistakes
- 01
Twisting fast with a heavy weight, which loads the spine instead of the muscle.
- 02
Avoiding obliques for fear of a wider waist; they add stability, not bulk, at normal training loads.
- 03
Letting the hips sag in side planks.
- 04
Doing only rotation and never anti-rotation work.
Exercises for this muscle
17 matching exercises
This muscle shares an exercise category with the closest functional group.
Primary muscle2
Secondary muscle15
MET 4
Decline Crunch
MET 3.5
Bicycle Crunch
MET 4
Hanging L-Sit Hold
MET 3.5
Scissor Kicks
MET 3
Lying Leg Circles – Double Leg
MET 7.5
Mountain Climber – Cross Body
MET 5.5
Mountain Climber – Cross Body (Knees)
MET 5
Mountain Climber – from Knees
MET 4
Dumbbell Weighted Crunch
MET 4
Dumbbell Russian Twist
MET 4
Dumbbell Wood Chop
MET 3.5
Weighted Incline Bench Leg Raise – Dumbbell
MET 3
Machine Crunch
MET 4.5
One Arm Dumbbell Row with Rotation – Incline Bench Support
MET 3
Side-Lying Lateral Raise – Bench
Frequently asked questions
Will oblique training make my waist wider?
At normal training loads, no. Obliques are thin muscles. A tighter, more stable waist is the usual outcome of consistent side-plank and anti-rotation work.
What is the best oblique exercise?
The Pallof press and the side plank are the safest and most transferable starting points. Cable woodchops add controlled rotation once the basics are solid.
Why do obliques matter for a coach?
They are the muscles that keep the trunk stable during single-arm and single-leg work, which most clients need for daily life and sport. Weak obliques show up as a twisting torso on lunges and presses.
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