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Hack squat (Hack Squats)

Target your thighs and buttocks specifically with this effective variation of the squat.

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Preparation

Position the sled in the center and insert the handlebar. Make sure to adjust the height so that the bar rests exactly on your neck when in a deep squat.

Starting Position

Go into a deep squat and securely place the handlebar on your neck. Position your feet approximately one foot length away from the end of the handlebars so that you stand stable.

Execution

Now push yourself powerfully up from the squat. Your center of gravity moves slightly backwards and upwards. Make sure not to fully extend your legs at the end of the movement. Keep your back straight, your body tension firm, and your gaze forward.

Variants

The foot position can be shifted slightly forward or backward.

Muscles Used

Legs
Glutes

Tip

Use a low stool to comfortably get into the seated starting position - this will make it much easier for you to start.

Please note

This exercise is all about the hack squat and not the low bar squat.

What makes this exercise particularly effective?

The Hackenschmidt squat — named after the weightlifter George Hackenschmidt — is performed with the handlebar positioned behind the legs and focuses particularly on the front of the thighs. The guided movement on the EISENHORN strenght station S or DS allows for controlled execution along a predetermined path. This makes the exercise ideal for isolated activation of the quadriceps with reduced load on the lower back muscles.

What effect does the exercise achieve?

  • Targeted quadriceps stimulation: The movement strongly engages the thigh extensors — especially effective with a narrow foot stance.

  • Lower mobility requirement: Requires less mobility than free squats — ideal for limited ankle or hip mobility.

  • Beginner-friendly: The guided movement prevents common technical errors and simplifies the learning process — reducing both the learning effort and risk of injury.

How does this exercise fit into the Big 5 concept?

The Big 5 include the fundamental exercises: squat, deadlift, bench press, pull-up or lat pulldown, and shoulder press. The Hackenschmidt squat complements this concept perfectly:

  • Targeted leg strength: It focuses on the quadriceps — an excellent supplement to squats and deadlifts.

  • Compensation of weaknesses: Particularly suitable for improving strength deficits in the thighs, without the full technical demands of other basic exercises.

  • Safe progression: The guided movement makes the exercise ideal for progressively building strength — especially for home workouts or beginners.