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Every exercise ranked by research, by lifters and by results. Find what’s S-tier for your goal, then train it.

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General training information, not medical advice. If something hurts, stop and see a professional.
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Explore/Abs

Crunch

BodyweightIsolationEasy to learn
Front
Back
Primary

Works

Abs

You need

Nothing but the floor

How to do itPicture · 3 steps
  1. 1Lower back on the floor
  2. 2Curl your ribs toward your pelvis
  3. 3Pause at the top

Most common mistake

Hundreds of fast reps with no added load.

Watch a demo
C
For abs
#11 of 23
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Research
53
Published rubric
Lifters
—
0/10 ratings
Results
Soon
From the app
How lifters rate itBe the first
S
A
B
C
D
F
Why research scores it 53
Target tension · 35%4/5
Loaded stretch · 25%2/5
Progression · 20%1/5
Low cost · 20%5/5
How scores work

Machine taken? Swap to

  • SCable CrunchCable
  • SMachine CrunchMachine
  • AAb Wheel RolloutOther
  • AHanging Leg RaiseBodyweight

Takes

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