Exercise

Standing Leg Curl: How to Do It, Muscles Worked

The Standing Leg Curl is a beginner-level strength exercise that primarily works the hamstrings. It uses machine, and is performed in 5 steps, following the form cues, common mistakes and sets/reps guidance below.

What muscles does the Standing Leg Curl work?

The Standing Leg Curl primarily targets the hamstrings, with no listed secondary muscles in the dataset. It's classified as a beginner-level strength movement using machine.

What are the most common Standing Leg Curl mistakes?

How should I program the Standing Leg Curl — sets, reps and frequency?

As a single-joint isolation exercise, it responds well to a higher 10-15 reps for 2-4 sets, usually taken close to muscular failure. It tolerates higher frequency than a heavy compound lift — twice a week for the same muscle group is common. Add small amounts of weight or an extra rep once every working set can be completed with good form — the same progressive overload principle behind every strength exercise in the library.

What are good Standing Leg Curl variations and alternatives?

Standing Leg Curl at a glance
AttributeValue
LevelBeginner
EquipmentMachine
CategoryStrength
Primary musclesHamstrings
Secondary muscles

How to do the Standing Leg Curl, step by step:

  1. Step 1. Adjust the machine lever to fit your height and lie with your torso bent at the waist facing forward around 30-45 degrees (since an angled position is more favorable for hamstrings recruitment) with the pad of the lever on the back of your right leg (just a few inches under the calves) and the front of the right leg on top of the machine pad.
  2. Step 2. Keeping the torso bent forward, ensure your leg is fully stretched and grab the side handles of the machine. Position your toes straight. This will be your starting position.
  3. Step 3. As you exhale, curl your right leg up as far as possible without lifting the upper leg from the pad. Once you hit the fully contracted position, hold it for a second.
  4. Step 4. As you inhale, bring the legs back to the initial position. Repeat for the recommended amount of repetitions.
  5. Step 5. Perform the same exercise now for the left leg.
Standing Leg Curl exercise demonstration
Photo: free-exercise-db (public domain)

Key takeaways

  • The Standing Leg Curl is a beginner-level strength exercise using machine.
  • Primary muscles worked: Hamstrings.
  • A typical working range is 10-15 reps for 2-4 sets, usually taken close to muscular failure.
  • The most common technical fault is letting the working joint hyperextend or lock out aggressively at the top of the rep.

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Frequently asked questions

Is the Standing Leg Curl suitable for beginners?

Yes — the dataset lists the Standing Leg Curl as a beginner-level movement, though anyone new to training should still start with light weight (or no added weight) to learn the pattern first.

What equipment do I need for the Standing Leg Curl?

A machine. No other equipment is required for the standard version of this movement.

What's the difference between the primary and secondary muscles listed?

Primary muscles (Hamstrings) do most of the work and are usually the limiting factor in the set. Secondary muscles assist or stabilize but aren't the main driver of the movement.