Lever One Leg Extension exercise animation (Männlich)

Lever One Leg Extension

Zielmuskel
Quadriceps
Equipment
Leverage machine
Körperregion
Thighs
Typ
Strength

The Lever One Leg Extension is a unilateral strength exercise that isolates the quadriceps using a leverage machine. Training one leg at a time allows you to correct side-to-side strength imbalances and concentrate tension on each quad individually, making it a useful accessory movement for leg development.

Lever One Leg Extension: So führst du sie aus

  1. 1Sit on the leg extension machine and adjust the seat back so your knees align with the machine's pivot point.
  2. 2Position one leg so the pad rests just above your ankle on the front of your shin, and let the other leg hang free or rest to the side.
  3. 3Grip the handles on either side of the seat for stability and sit upright with your back against the pad.
  4. 4Exhale and extend your working leg until your knee is fully straightened, pausing briefly at the top to contract the quadriceps.
  5. 5Inhale and lower the pad back down in a controlled arc, stopping just before the weight stack touches down.
  6. 6Complete all reps on the first leg, then switch and repeat with the other leg, using the same weight and rep count.

Technik-Tipps

  • Keep your thigh flat against the seat pad throughout the movement — if your hip lifts off the seat as you extend, the weight is too heavy.
  • Pause for one second at full extension to maximize quadriceps contraction before lowering.
  • Control the lowering phase over 2–3 seconds rather than letting the weight drop freely, which keeps tension on the quad through the full range.
  • Point your toes straight or very slightly inward to keep the quad in the most direct line of pull with the machine.

Häufige Fehler

  • Using momentum to swing the leg up, which reduces quadriceps tension and places stress on the knee ligaments.
  • Allowing the hip to lift off the seat at the top of the rep, which shifts load away from the quad and destabilizes the movement.
  • Letting the weight drop too quickly on the way down, which cuts the eccentric work short and reduces total muscle stimulus.
  • Matching weight to the stronger leg without addressing the imbalance — start with the weaker leg and match the reps and weight on the stronger side.

Häufig gestellte Fragen

What muscles does the Lever One Leg Extension work?

It targets the quadriceps — the group of four muscles on the front of the thigh — as the primary mover, with no significant synergist involvement.

Why train one leg at a time instead of both legs together?

Unilateral training exposes and corrects left-to-right strength imbalances that a bilateral movement can hide, since the stronger leg tends to compensate for the weaker one.

Is the Lever One Leg Extension suitable for beginners?

Yes. The machine controls the movement path, making it straightforward to learn. Start with a light weight to feel the quad working before adding load.

How many sets and reps should I do?

For muscle development, 3–4 sets of 10–15 reps per leg works well. Because the movement is machine-based and low-skill, slightly higher rep ranges are appropriate compared to free-weight quad exercises.

Where should I feel this exercise?

You should feel the work in the front of the thigh — the quadriceps — particularly near the top of the rep when the knee is fully extended. No discomfort should occur inside the knee joint itself.

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