Liftworthy
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Liftworthy

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

L-Sit

BodyweightIsolationTakes some practice
Front
Back
Primary Secondary

Works

Abs

Also triceps, quads

You need

Dip bars

How to do itPicture · 3 steps
Hold
Main musclesAlso working
  1. 1Hands on parallettes or dip bars, arms locked
  2. 2Lift your legs straight out in front
  3. 3Push your shoulders down, away from your ears

Most common mistake

Bending the knees and calling it straight.

Watch a demo
C
For abs
#17 of 23
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Research
44
Scored by hand
Results
Soon
From the app
How lifters rate itBe the first
S
A
B
C
D
F
Why research scores it 44
Target tensionGood
Loaded stretchFair
ProgressionFair
Low costStrong

Research behind these criteria

  • Target tension: Zabaleta-Korta et al., 2021 · Kinoshita et al., 2023
  • Loaded stretch: Maeo et al., 2021 · Maeo et al., 2023 · Pedrosa et al., 2022 · Kassiano et al., 2023
  • Progression: Plotkin et al., 2022 · Pelland et al., 2026
  • Low cost: Schoenfeld et al., 2021 · Refalo et al., 2023
How scores work

Machine taken? Swap to

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

Takes

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280