O Live Pro Series sissy squat bench, quadriceps isolation

The O'Live Pro Series sissy squat bench isolates the quadriceps under a controlled range of motion, on a high-strength carbon steel frame built from 50 x 120 x 3 mm oval tube. It measures 98 x 65 x 48 cm, weighs 48 kg and carries users and load up to 200 kg. The height-adjustable seat and footplate let it be set for any build, which is what makes it usable on an open gym floor rather than only by the person who set it up.

What the sissy squat does that a squat rack cannot

The sissy squat is a knee-dominant movement performed with the hips extended, which shifts the load onto the quadriceps and takes the lower back and the hip extensors almost entirely out of the exercise. On a dedicated bench the feet and shins are anchored, so the lifter controls the descent instead of fighting for balance.

• Quadriceps isolation through the full knee flexion range
• Glutes and trunk working isometrically to hold hip extension
• Deep core bracing throughout the movement
• Height-adjustable seat and footrest for different leg lengths
• Compatible with resistance bands and with seated variations

Technical specification

Frame section, footprint and floor planning

A 50 x 120 x 3 mm oval section is a heavy specification for a bench of this size, and the reason is the load path. In a sissy squat the entire body weight, plus any additional load the user is holding, acts through the foot anchor at the end of a long lever. That is a bending moment, not a compression load, and it is what deforms lighter frames over time.

At 98 x 65 cm the bench takes 0.64 m2 of floor, which puts it within reach of studios and hotel fitness rooms that have no space for a dedicated leg machine. Allow clearance behind for the backward lean and a metre in front for entry and exit. The 48 kg mass keeps it stable in use without bolting down, and the non-slip rubber base protects the floor covering.

Upholstery is high-density elastic foam under an antibacterial synthetic leather cover, which is the correct specification for a machine where the shin contacts the pad under high pressure at every repetition. See the rest of the range in O'Live Pro strength equipment and the wider strength training machines catalogue.

Frequently asked questions

Is this suitable for a commercial gym floor?

Yes. The frame section, the 200 kg capacity, the epoxy powder coating and the CE marking under the EN 20957 series are specified for professional installation. The adjustable seat and footrest mean it can be reset in seconds between members.

Does it replace a leg extension machine?

It complements one rather than replacing it. A leg extension applies an external, selectable load through a lever arm; the sissy squat bench loads the quadriceps with body weight through a closed knee-dominant pattern. Clubs that carry both use them at different points in a session.

Can additional load be used?

Yes, within the 200 kg capacity. Users typically hold a plate or a dumbbell against the chest, or add resistance bands. Beyond that, the limiting factor is the user rather than the frame.

Tell us the size of your strength area and the machines already installed, and we will return a floor plan with the sissy squat bench positioned and costed alongside the rest of the specification. Quotations are issued within 24 to 72 hours.