Sled Hack Squat
- Músculo objetivo
- Gluteus Maximus, Quadriceps
- Músculos sinergistas
- Adductor Magnus, Soleus
- Equipamiento
- Sled machine
- Parte del cuerpo
- Hips
- Tipo
- Strength
The sled hack squat is a machine-based lower-body strength exercise that primarily targets the gluteus maximus and quadriceps, with assistance from the adductor magnus and soleus. Performed on a hack squat sled machine, it guides your movement through a fixed track, making it an effective option for building leg size and strength with reduced spinal loading.
Cómo hacer el Sled Hack Squat
- 1Step onto the footplate of the sled machine and position your feet approximately shoulder-width apart, toes pointing slightly outward.
- 2Back up against the padded carriage and place your shoulders firmly under the shoulder pads, keeping your back flat against the backrest.
- 3Grasp the handles on either side of the machine for stability.
- 4Disengage the safety handles and hold the sled in the starting position with your legs nearly fully extended.
- 5Lower the sled under control by bending your knees, tracking them in line with your toes, until your thighs reach at least parallel to the footplate.
- 6Pause briefly at the bottom without letting your lower back peel away from the backrest.
- 7Drive through your entire foot to press the sled back up to the starting position, stopping just short of locking out your knees.
- 8Complete your reps, then engage the safety handles securely before stepping off the machine.
Consejos de técnica
- Keep your feet flat on the footplate throughout each rep — avoid letting your heels rise as you descend.
- Press your back firmly into the padded carriage at all times to maintain a neutral spine and protect your lower back.
- Track your knees over your second and third toes on both the way down and the way up to keep the joints in safe alignment.
- Control the descent rather than letting the sled drop — a 2–3 second lowering phase increases time under tension and reduces joint stress.
- Avoid fully locking out your knees at the top of each rep to keep constant tension on the quadriceps and gluteus maximus.
Errores comunes
- Allowing the heels to lift off the footplate, which shifts load away from the glutes and quads and strains the knees.
- Letting the lower back round or peel off the backrest at the bottom, which places dangerous shear force on the lumbar spine.
- Using too narrow a range of motion by stopping well above parallel, which limits gluteus maximus and quadriceps development.
- Letting the knees cave inward (valgus collapse), which stresses the knee ligaments — actively drive the knees out to match your toe angle.
- Releasing the safety handles without being properly set under the shoulder pads, risking loss of control of the loaded sled.
Preguntas frecuentes
What muscles does the sled hack squat work?
It primarily targets the gluteus maximus and quadriceps, with the adductor magnus and soleus acting as synergists to support the movement.
Where should I place my feet on the footplate?
A shoulder-width stance with toes turned slightly outward is standard. Placing your feet higher on the plate increases glute involvement, while a lower position emphasizes the quadriceps.
How deep should I squat on the hack squat machine?
Lower until your thighs are at least parallel to the footplate. Going deeper increases glute and quad activation, provided your lower back stays flat against the backrest.
Is the sled hack squat better than a barbell squat?
They serve different purposes. The sled machine guides your path of motion and offloads the spine, making it a strong accessory or alternative for lifters who want to emphasize leg development with less axial load.
Should I lock out my knees at the top of each rep?
No — stop just short of full extension to keep tension on the quadriceps and gluteus maximus and reduce unnecessary stress on the knee joint.
