Lying Machine Squat

The Lying Machine Squat primarily targets your Quadriceps, with support from Calves, Glutes, Hamstrings. It requires machine and is best suited to intermediate lifters.

Intermediate level · Equipment: Machine · Compound · Push

Primary muscles: Quadriceps Secondary muscles: Calves, Glutes, Hamstrings

How to perform Lying Machine Squat

Step 1. Adjust the leg machine to a height that will allow you to get inside it with your knees bent and the thighs slightly below parallel.
Step 2. Once you select the weight, position yourself inside the machine face up with the knees bent and thighs slightly below parallel to the platform. Make sure that the knees do not go past the toes. The angle created between the hamstrings and the calves should be one that is slightly less than 90 degrees (since your starting position requires you to start slightly below parallel). Your back and your head should be resting on the machine while your shoulders are pressed under the shoulder pads.
Step 3. Place your hands by the handles and position your feet slightly pointing out at a shoulder width position. This will be your starting position.
Step 4. While pressing with the balls of the feet as you breathe out, make your whole body erect as you squeeze the quads. Hold the contracted position for a second. Tip: Since you are starting below parallel, you can opt to use your hands to help you up by pressing on your thighs only on the first repetition.
Step 5. Slowly squat down as you inhale but instead of going all the way down to the starting position, just stop once your thighs are parallel to the platform. The angle between your hamstrings and calves should be a 90-degree angle.
Step 6. Repeat for the recommended amount of repetitions.

Frequently asked questions

What are the primary muscles targeted by the lying machine squat?

The lying machine squat is an isolation-style compound movement that primarily targets the quadriceps. Because the back is supported, it minimizes spinal loading and glute involvement compared to free weight squats.

How should I position my feet on the platform for maximum quad engagement?

Place your feet lower on the platform to increase knee flexion and quad recruitment. Ensure your heels remain in contact with the plate throughout the entire range of motion to maintain force production.

What is a common mistake to avoid during the eccentric phase?

Avoid allowing your lower back or hips to lift off the backrest at the bottom of the movement. This 'butt wink' shifts tension away from the quads and places unnecessary shear force on the lumbar spine.

Is the lying machine squat suitable for beginners?

Yes, it is highly accessible for beginners because the machine dictates the path of motion and provides back support. It allows novices to build leg strength and hypertrophy without the technical complexity of barbell balancing.

What is the ideal set and rep range for this exercise?

Perform 3 to 4 sets of 8 to 15 repetitions to maximize metabolic stress and muscle growth. This machine is particularly effective for high-volume training or as a finisher after heavy compound lifts.

Sample sets & reps for Lying Machine Squat

Strength: 4-5 sets × 3-5 reps, 2-3 min rest. 80-90% 1RM, RPE 8-9.
Hypertrophy: 3-4 sets × 6-10 reps, 90s-2 min rest. 70-80% 1RM, RPE 7-8.
Power / explosiveness: 5-6 sets × 2-3 reps, 2-3 min rest. 60-75% 1RM, max bar speed.

Pick the scheme that matches your goal. Beginners should start at the lower end of every range; progress weight only when you hit the upper end of the rep range with one or two reps in reserve.

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