Leg Press 1RM Calculator

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Leg Press Strength Standards (kg)

Body Weight Beginner Novice Intermediate Advanced Elite
120 kg 140 210 290 395 500
130 kg 145 220 300 410 520
140 kg 150 225 310 425 535
150 kg 155 235 320 440 555
160 kg 160 240 330 455 575
170 kg 165 250 345 465 590
180 kg 170 255 355 480 610
190 kg 175 265 365 495 625
200 kg 180 270 375 510 645
210 kg 185 280 385 525 660
220 kg 190 285 395 535 680

How to Perform the Leg Press

Sit in the leg press machine with your back flat against the pad. Place your feet on the platform shoulder-width apart with toes slightly pointed out. Release the safety handles and lower the platform by bending your knees toward your chest, descending until your knees reach approximately 90 degrees. Press the platform away by extending your knees and hips without locking your knees completely at the top. Re-engage the safeties when your set is complete.

Muscle Activation

The leg press primarily targets the quadriceps through knee extension. Foot placement significantly affects muscle emphasis: a higher placement increases glute and hamstring involvement, while a lower placement isolates the quadriceps more. A wider stance targets the adductors and inner quads, while a narrow stance emphasizes the outer quads. The lack of spinal loading makes this an effective option for building leg strength while managing back stress.

Common Mistakes

  • Lowering the weight too far and allowing the lower back to round off the pad, which can cause disc injuries.
  • Locking the knees at the top of each rep, which transfers load from the muscles to the joints.
  • Placing the feet too low on the platform, which increases shear force on the knees.
  • Using an excessively heavy weight with a limited range of motion rather than moderate weight with full depth.

Variations

Single-leg press addresses strength imbalances. Narrow-stance leg press emphasizes the outer quads. Wide-stance targets the adductors and glutes. The hack squat machine provides a similar movement pattern with a more upright torso position. Some gyms also have horizontal and vertical leg press machines, each offering different resistance profiles.

Programming Tips

Use the leg press for 3-4 sets of 8-15 reps as a secondary exercise after squats, or as a primary lower body exercise if squatting is contraindicated. The leg press can handle higher volumes and heavier relative loads than squats due to the reduced stability demands and spinal loading.

Frequently Asked Questions

The leg press can build significant quad and leg strength but does not replace the squat for total body development, core stability, or functional strength. It is best used as a complement to squats.
Shoulder-width with toes slightly out is a good default. Higher placement emphasizes glutes, lower placement emphasizes quads, wider targets adductors, and narrower targets outer quads.
Lower until your knees are at about 90 degrees or until your lower back starts to round off the pad. Going too deep can cause lower back rounding and potential injury.
The machine eliminates the need for balance and removes spinal loading, allowing your legs to push much more weight. It is normal to leg press 2-3 times your squat.

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