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Handler
Exercise database

Lying Leg Curl

Lying Leg Curl is a beginner isolation exercise that primarily trains the hamstrings, with the calves assisting. Equipment: leg curl machine.

Library data updated BeginnerLeg curl machine

What this page is: structured data from Handler's own exercise library — the same cues, mistakes, ranges, and modifications the coach uses in the app. It is general exercise information, not an individual technique assessment or medical advice. Stop any movement that causes pain and seek qualified coaching or clinical care for injuries.

Demonstration loop from Handler's exercise library. Only the still frame loads until you press play.

Technique

Form cues for the lying leg curl

  1. 01

    Keep the upper arm still while the forearm moves.

  2. 02

    Lock in the body position before the first rep.

  3. 03

    Move only through the target joint and keep the tempo smooth.

  4. 04

    Stop each set with one or two clean reps still available.

  5. 05

    Keep hips heavy on the pad as heels curl toward glutes.

Troubleshooting

Common mistakes

  • Swinging the weight.

  • Changing posture to finish reps.

  • Cutting the range short.

Programming defaults

Sets, reps, and rest by goal

These are the starting ranges Handler's library assigns to the lying leg curl for each training goal. They are defaults the coach adjusts from your logged sets, not a prescription for any individual.

GoalSets × repsRest between sets
Strength3 × 8–12 reps1 min 15 s
Hypertrophy3 × 10–15 reps1 min
Fat loss2 × 15–25 reps30 s
General fitness2 × 10–15 reps45 s

Between sets

  • Use the same tempo on the next set.
  • Stop before momentum takes over.

Working around discomfort

Modifications by body area

How Handler adjusts the lying leg curl when a lifter reports a sensitive area. These are training modifications, not treatment. Pain that persists or worsens needs clinical assessment.

Knee
Shorten the range, keep the knee tracking over the toes, and use a controlled tempo.
Hip
Use a comfortable stance and shorten the range if the front of the hip pinches.
Lower back
Reduce load, brace before each rep, and stop if you cannot keep a neutral spine.

Progression chain

Easier and harder variations

Regress to

Progress to

Questions about this exercise

What muscles does the lying leg curl work?
The lying leg curl primarily works the hamstrings. The calves work as secondary or stabilising muscles. In Handler's library it is classified as a isolation movement.
What equipment do you need for the lying leg curl?
You need leg curl machine. It is programmed in commercial gym setups where that equipment is available.
How many sets and reps of the lying leg curl should I do?
Handler's default for a strength focus is 3 × 8–12 reps with about 1 min 15 s rest, and for a muscle-building focus 3 × 10–15 reps with about 1 min rest. These are the library's starting ranges, not an individual prescription; the coach adjusts them from what you log.
Is the lying leg curl suitable for beginners?
Yes. It is tagged beginner in Handler's library. When it feels easy, the next step in the progression chain is the band leg curl.

More hamstring exercises

Invited TestFlight beta · iPhone-first

Let the coach program the lying leg curl for you.

Handler is our product. In the invited iPhone beta, the coach places exercises like this one into your plan, sets the starting ranges shown above, and adjusts them from the sets you log. Test build, not a public download.

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