The Force USA® Sissy Squat Machine is a specialized piece of equipment designed for sissy squats—the isolating quadriceps exercise that targets the rectus femoris muscle in a unique way. With a sturdy, padded knee support and a non-slip footrest, you can perform deep sissy squats safely and with control—without struggling to maintain your balance.

Key Benefits

• Stable instead of wobbly: The free sissy squat is hard to balance. The machine secures your feet and gives you the stability you need—so you can focus entirely on contracting your quadriceps.
• Extreme quadriceps isolation: Sissy squats engage the rectus femoris muscle across both joints (knee and hip) simultaneously—providing maximum longitudinal tension and a strong growth stimulus. Bodybuilders have been using this exercise for decades to build defined thighs.
• For all body sizes: The footrest is adjustable.
• Can be made more challenging: Additional weight can be added using weight plates on the chest or a weight vest.

Technical Specifications

• Type: Sissy Squat Machine
• Knee support: padded, sturdy
• Footrest: non-slip, adjustable footrest
• Use: Quadriceps isolation, sissy squats
• Brand: Force USA

Applications

For advanced strength trainers and bodybuilders who want to intensify their quadriceps training—as a supplementary isolation exercise. Also suitable for knee rehabilitation, but only under the supervision of a physical therapist.

Frequently Asked Questions (FAQ)

What is a Sissy Squat?
An isolation squat variation: You lean your upper body backward and push your knees far forward—the reverse motion of a normal squat. This isolates the quadriceps and causes an extreme contraction of the rectus femoris muscle.

Is the sissy squat suitable for people with knee problems?
Sissy squats place a lot of stress on the knee extensor muscles and, if you have existing knee problems, should only be performed under the supervision of a physical therapist.

Can I use additional weight?
Yes. You can hold a weight plate against your chest or wear a weight vest.

Is the machine suitable for people of all heights?
Yes. The footrest is adjustable to accommodate different heights.