StyrkiStyrki
AI CoachExercisesBlogHelp Center
Sign inGet the app
StyrkiStyrki
AI Coach|Exercises|PB Tracker|Blog|Help Center|Privacy Policy|Terms of Service

© 2026 Styrki. All rights reserved.

Exercise Library/Posterior thighs/Machine/One-Legged Lying Leg Curl
Back to Library

One-Legged Lying Leg Curl

MachineUnilateralStrength

No video available

The One-Legged Lying Leg Curl is a unilateral strength exercise performed prone on a lying leg curl machine, curling one leg at a time against the machine's resistance pad. Its primary purpose is to isolate and strengthen the posterior thighs, particularly the hamstrings, while improving unilateral stability and balance. This exercise benefits athletes, beginners building single-leg strength, or anyone addressing muscle imbalances, and requires a lying leg curl machine.

How to Perform One-Legged Lying Leg Curl

  1. 1Lie face down on a lying leg curl machine with your knees just off the edge of the pad and the ankle pad resting against the back of your lower legs, just above your heels.
  2. 2Grip the handles or the sides of the bench for stability, and position your right ankle under the pad while your left leg rests to the side, not engaged with the pad.
  3. 3Set an appropriate weight, keeping your hips pressed firmly into the bench.
  4. 4Inhale to prepare, then exhale as you curl the pad by bending your right knee, bringing your heel toward your glutes, squeezing your hamstring at the top.
  5. 5Pause briefly at the top of the curl.
  6. 6Inhale as you slowly lower the pad back to the starting position, fully extending your right leg with control.
  7. 7Perform 8-12 reps on the right leg, then reposition your left leg under the pad and repeat.
  8. 8Key form tips: Keep your hips pressed into the bench throughout—no lifting hips or rotating your pelvis; move slowly to maximize hamstring engagement. Common mistakes: Rushing the eccentric (lowering) phase or letting the working knee flare out sideways.

Muscles Worked

Front

Back

Primary
Secondary
Primary
Posterior thighs

Equipment Required

Machine

Track this exercise

Log your sets, track PRs, and monitor progress with Styrki.

Start tracking free

Quick answers

What muscles does One-Legged Lying Leg Curl work?
One-Legged Lying Leg Curl primarily targets the Posterior thighs.
What equipment do I need for One-Legged Lying Leg Curl?
One-Legged Lying Leg Curl requires Machine. Make sure to select an appropriate weight for your fitness level.
Is One-Legged Lying Leg Curl a unilateral exercise?
Yes, One-Legged Lying Leg Curl is a unilateral exercise, meaning it works one side of your body at a time. This helps identify and correct muscle imbalances between your left and right sides.
How do I perform One-Legged Lying Leg Curl correctly?
One-Legged Lying Leg Curl is performed in 8 steps. Start by: Lie face down on a lying leg curl machine with your knees just off the edge of the pad and the ankle pad resting against the back of your lower legs, just above your heels. See the full step-by-step instructions above for complete form guidance.
What type of exercise is One-Legged Lying Leg Curl?
One-Legged Lying Leg Curl is a strength training exercise designed to build muscle and increase force production. It primarily works the Posterior thighs.

More Posterior thighs Exercises

View All

Landmine Hack Squat

QuadsGlutes+1

Leg Curl With Ball

Posterior thighs
BW

Pause Squat

QuadsGlutes+2
Barbell

Learn More

View all training guides

Let AI program your One-Legged Lying Leg Curl

Styrki picks your One-Legged Lying Leg Curl sets, weights and progression with adaptive periodization — and auto-detects PRs across 20+ record types. Free to track, free forever.

Get the iPhone appFree on the App Store · no credit card

Browse more exercises