Instructions

1

Sit on the leg extension machine with your back and upper body firmly against the backrest, hips positioned at a 90-degree angle, knees bent to approximately 90 degrees, and feet positioned under the padded footrest bar

2

Grip the handles on either side of the seat for stability and support, ensure the machine's pivot point aligns with your knee joint, and position your feet shoulder-width apart with toes pointing forward

3

Slowly lower the weighted footrest by allowing your knees to bend in a controlled manner, resisting the weight throughout the descent until knees reach approximately 90 degrees of flexion, maintaining contact with the backrest

4

Drive through your quadriceps to extend your legs forward, pushing the footrest upward in a smooth arc until your legs are nearly straight (avoid hyperextending the knees), then control the descent back to the starting position

PRIMARY MUSCLESQuadriceps

SECONDARY MUSCLESGluteus Maximus, Adductor Magnus, Tensor Fasciae Latae, Rectus Femoris

EQUIPMENTLeverage machine

DIFFICULTYBeginner

Overview

Athletic trainers and bodybuilding coaches frequently recommend the Lever Lying Single Leg Curl because it challenges the Quadriceps through a dynamic range of motion. By relying on Leverage machine, it reinforces proper movement patterns and builds robust strength in the Thighs region.

Benefits

Promotes balanced muscular development by effectively recruiting the Quadriceps and associated synergists.
Improves overall Thighs stability and proprioception during heavy loads.
Reduces the likelihood of Thighs injuries by reinforcing connective tissue strength.
Acts as a highly scalable Strength movement, perfect for both beginners and elite athletes.
Allows for a natural movement path that closely mimics functional daily activities.

Common Mistakes

Shrugging the shoulders or compensating with secondary muscles rather than isolating the Quadriceps.
Failing to achieve a full range of motion, which drastically limits Quadriceps engagement.
Using excessive momentum to swing the Leverage machine rather than controlling the eccentric phase.
Rushing the repetition tempo instead of focusing on the mind-muscle connection with the Thighs.

Pro Tips

Think about pulling from your elbows rather than your hands to better isolate the Quadriceps and minimize bicep/forearm takeover.

Muscle Anatomy

The primary driver is the Quadriceps. However, the movement also recruits Gluteus Maximus, Adductor Magnus, Tensor Fasciae Latae, Rectus Femoris to maintain control of the Leverage machine.

Exercise Variations

Dumbbell Lever Lying Single Leg Curl
Cable Lever Lying Single Leg Curl
Banded Lever Lying Single Leg Curl

Beginner Tips

If you are new to the Lever Lying Single Leg Curl, focus on mastering the movement pattern with zero weight before adding Leverage machine.

Lever Lying Single Leg Curl