The Sissy squat – Benefits, Proper Form and Muscles Worked

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August 5, 2022
Sissy squat

Squats are such an important exercise for almost everyone, from athletes to elder people. The amount of variety you can add to this one exercise is as far as your imagination allows you to do so.


Front squats, back squats, pistol squats, and box squats are just some of the many forms squatting can have.

Now, take a look at this picture.

I’m almost sure you felt your knees rip apart while yelling about this guy’s poor form.

Well, I reassure you that this is the proper technique. When we’re talking about the Sissy Squat. An exercise that, as the legend says, Arnold Schwarzenegger introduced to us as a quad isolation squat variation.

The name Sissy sounds funny, however, it derives from a Greek legend of Mythology, King Sisyphus, who was punished by the Greek Gods for escaping Hades (Hell) twice. His punishment was to roll a cursed boulder up a hill that always rolled back down. This made Sisyphus roll the boulder forever.

 If you have ever done sled pushes, which is similar to what Sisyphus was forced to do, you would have felt that enormous quad pump. This is probably why most Greek Mythology art shows him with huge thighs and, especially, quad muscles.

Interested in learning more about the Sissy Squat? Let’s dive deeper into:

  • the differences between the traditional squat
  • how to perform the Sissy Squat
  • its benefits
  • potential risks
  • how to progress to achieve one
  • Sissy Squat alternatives and variations

Benefits of the Sissy squat

Quad development

From a bodybuilding standpoint, Sissy Squats are a quad isolation exercise. Your whole bodyweight is lifted by using knee extension with locked hips, thus making the quads work excessively more, as your glutes and hamstrings turn into a supporting role. This is why bodybuilders would use the Sissy Squat.

CrossFitters also like Sissy Squat as an accessory movement for quad development and knee strength. Lately, I have been watching athletes from different sports, perform Sissy Squat and variations of it for its benefits.


What makes the Sissy Squat so special? There is much more than just the quad pump. Here are some of the benefits of the Sissy Squat.

Bulletproofs your knees

Most people will struggle to perform a Sissy Squat right away or will hurt themselves before claiming the benefits of this exercise. I advise you to start off with the regression exercises mentioned below, and stick to those for a good amount of time before progressing, to make sure you don’t injure yourself.

In contrast to the precautions I mentioned above, Sissy Squats are a great exercise to bulletproof your knees, by strengthening the muscle and connective tissue around the knee joint, like the quadriceps, the quadricep tendon, and the patellar tendon. From my coaching experience, this leads to a tremendous drop in knee injuries and an athletic performance boost. I strongly suggest you incorporate some kind of variation or alternative (not necessarily Sissy Squats) into your training routine.

Another reason I am a fan of exercises similar to the Sissy Squat is ankle strength development. 

As you can see, the ankles are in a fully extended position. This means that the Soleus muscle gets hit at end-range, another muscle that plays a big role in knee stability and also athletic performance.

End-range strength is a very important factor that many people neglect in their training. It basically means that your muscles are functional and strong throughout the whole movement, bulletproofing them and the joints that are supported by those muscles.

Improves balance, proprioception, and core strength

Despite the Sissy Squat primarily involving the quads, it also utilizes many other muscle groups to correctly perform it, while having the body in an unusual position, when compared to regular squats.

The movement starts with leaning the body backward in a straight line position from the knees up until the shoulders, maintaining constant tension through the whole body. This activates the core while squatting on your toes with your knees traveling excessively forward activates the majority of leg muscles, especially the quads and calves. Additionally, due to the unusual position of the body, balance and proprioception are also challenged by the Sissy Squat.

Not an isolation exercise after all

Despite the Sissy Squat being popular for its quad isolation purposes, it is definitely much more than just a leg extension. Its benefits range from:

  • tendon/joint strength
  • balance and core development
  • full body proprioception improvements
  • Knee and ankle stability and mobility

How to Perform the Sissy squat with Perfect Form

The Setup

Start with your feet shoulder-width apart. Squeeze your glutes and activate your core to maintain a hollow position (neutral spine). Before attempting a freestanding Sissy Squat, hold on to a pair of rings or the wall.

The descent

Lift your heels off the ground, and while maintaining a straight line from your knees to your head, bring your knees forward and aim to go as close to the ground as possible. Go as low as you feel comfortable going, without compromising technique. While your knees travel forward, bring your body backward, without losing activation in the core and your glutes.

The ascent

While a full Sissy Squat requires you to lift your body back up by staying on your toes, in order to safely progress, you could only train descents and plant your heel on the ground for the ascent until you feel comfortable performing a full Sissy Squat. Finish the movement by touching your heels on the ground and extending your knees and hips.

Sissy Squat Progression

The Sissy Squat is an advanced exercise and should be incorporated slowly into an athlete’s exercise program. It is advised to follow the progression exercises listed below in order to prime the body for the full Sissy Squat.

Treadmill backward walk

This is an exercise I use as a warm-up for every leg dominant workout. It can also be done with a sled, with Reverse Sled Pulls. It promotes blood flow to the legs, warms up the knees properly, and strengthens the anterior part of the leg, which includes the quads and shins, the most important muscles for knee strength and stability.

Rep Scheme:

10 minutes as a warm-up and 5 minutes for cooldown

Medball Hamstring Curls

This exercise targets the supporting muscles for a Sissy Squat, which include the hamstrings, calves, glutes, and lower back. Try to maintain a slow tempo and your hips fully extended.

Rep Scheme:

3×20 

Heel-elevated Squats

This Squat variation will teach you a different squat angle, with your heels raised and your knees traveling forward. It will strengthen the muscles and joints in this specific position, which is necessary for the Sissy Squat. A heel-elevated squat will also allow for a full range of motion, due to decreased ankle mobility requirements.

Rep Scheme:

Perform 3×20 reps with your bodyweight at first, and progress towards holding a light kettlebell.

Reverse Nordic Curls

Reverse Nordic Curls are a great knee strengthening exercise, which mimics the Sissy Squat but with your knees on the ground. By doing them you will also learn how to embrace your glutes and core for the Sissy Squat. Try to maintain your hips locked and your core engaged as in a Hollow position.

Rep Scheme:

Perform 3×8 with your bodyweight and then progress towards holding a light plate. If you struggle to do this exercise, try doing negatives (only the descent), and progress towards holding a pair of rings or a band.

Nordic Curls

In order to perform the Sissy Squat safely, you have to work on the antagonist muscles of the movement as well. This will tremendously lower your chances for injury and will help you progress smoother and safer towards achieving a Sissy Squat.

The Nordic Hamstring Curls are one of the best exercises for hamstring and knee strength. Try to maintain locked hips while performing them.

Rep Scheme:

Perform 3×12 only doing the descent while pushing yourself back up with your arms. Progress towards removing the push-up. 

Assisted Sissy Squat

When you have performed the exercises mentioned above without pain and you feel ready to try out a Sissy Squat, I suggest you do it with some assistance for the first few times to give the body time to adapt. This variation will have you hold on to a barbell but you can hold on to a pair of rings, a chair, or the squat rack itself.

Rep Scheme:

Perform 3×8 of this exercise following ALL of the exercises above to make sure your body is adequately warmed up and ready for it.

Negative Sissy Squat

Now that you have gone through all of the exercises mentioned, you can try performing a Negative Sissy Squat, which includes only the descent. This will remove some of the tension on the knee that is higher during the first phase of the ascent. Lift yourself up safe after each rep.

Rep Scheme:

Perform 3×5 controlling the movement and slowly increasing the time it takes you to reach the bottom. Progress towards pausing for 3 seconds just before reaching full depth.

After this, you will most likely be able to perform a full Sissy Squat. If you still struggle, spend another 2 weeks working on the regression exercises mentioned above.

Common Sissy Squat Mistakes

Being a compound exercise, the Sissy Squat requires full body coordination in order to be performed correctly. Some of the most typical mistakes are:

Progressing too fast

The most common mistake athletes do when learning the Sissy Squat, is neglecting the regression exercises, believing they are strong enough to perform Sissy Squats immediately. Even if you are able to perform a Sissy Squat from the beginning, I strongly suggest spending some time with the regression exercises, to make sure your knees are strong enough to handle the stress of a Sissy Squat.

Hips unlocking

When doing Sissy Squats, it’s normal that you feel the urge to unlock your hips, as this is how all other squats are performed. However, in the Sissy Squat, the hips must stay locked (hip flexors extended) and the upper body must lean back to balance out the weight of your legs.

Knee alignment

To bulletproof your knee joints, make sure that they are always aligned with your toes. That way you reduce the chances of a knee injury while optimizing strength and performance. To prevent knee pain, avoid letting your knees cave in or turning them excessively outwards.

Neglecting mobility

A common mistake of athletes of all backgrounds. Although mobility is one of the most important attributes an athlete can have, people still do not understand its value. From injury prevention to increased performance, mobility is necessary for the Sissy Squat as well. Ankles and knees are the joints that need to be the most mobile, meaning that calves, thighs, and hips should be flexible as well.

Sissy Squat Variations

Banded Sissy Squat

A banded Sissy Squat is harder than a regular one, because the band increases the resistance, by pulling your trunk towards the ground. To perform it, step on a resistance band with both feet, and place the band around your shoulders.

Weighted Sissy Squat

You can perform the weighted Sissy Squat either by holding a dumbbell/kettlebell in your hands or in the front rack position. A weight plate can also be held in the goblet position.

Landmine Sissy Squat

Grab the barbell from the highest part and bring it to chest level. Perform the Sissy Squat while holding the landmine for improved balance and increased weight.

Sissy Squat Alternatives

You can still reap the benefits of a Sissy Squat without doing one, by using the exercises below. Each one is slightly different from a Sissy Squat but, depending on what you want to work on, you will definitely find what you are looking for.

Leg Extension Machine

If you prefer machines, Leg Extensions are the most basic exercise for quad development.

Leg Press

The Leg Press is one of the most popular machines for training the lower body. Depending on the angle of your feet you can target the anterior and the posterior part of the thigh.

Smith Machine Squats

With a Smith Machine, you can do many different types of squats, even mimicking the Sissy Squat, and target the quads specifically, depending on your foot stance.

Barbell Squats

Back Squats are a great exercise for overall lower body development, with high bar back squats targeting the quads more, while low bar back squats hitting the posterior chain more. Front Squats are even more quad-dominant.

Bulgarian Split Squats

Unilateral exercises shouldn’t be neglected as they correct body imbalances, which develop through time with training. Bulgarian Split Squats are my favorite unilateral lower body exercise, as they hit every lower body muscle group.

Equipment needed (if any)

The full Sissy Squat is usually performed with no equipment, but in order to get there, you will probably need some of it. The most used equipment for Sissy Squat training is:

  • Heel-elevating platform (or a pair of plates)
  • Pair of rings or TRX handles.
  • Squat rack for assistance (you can hold onto anything that does the job though)
  • A band for Banded Sissy Squats
  • Machines (Leg Extension, Leg Press, Smith Machine)
  • Treadmill or Sled (for warm-up)
  • Barbell for alternative exercises
  • Landmine for variation exercises

Sissy squat FAQs

Is the Sissy Squat bad for the knees?

The Sissy Squat is a knee strengthening exercise but can lead to injury if you go too fast from the regression exercises to the full Sissy Squat, if you don’t warm up properly, and if you struggle with mobility.

How to achieve a Sissy Squat?

Go through all the regression exercises and spend as much time needed with them before moving on to a full Sissy Squat.

Is the Sissy Squat an isolation exercise?

Although the Sissy Squat is felt mainly in the quads, especially the rectus femoris, it is a complex exercise that works many other muscle groups, from the calves to the core.

Do I need equipment for the Sissy Squat?

You don’t need equipment for it, but you will need some type of equipment for training towards a freestanding Sissy Squat.

About Damect Dominguez

Co-founder of BoxLife Magazine. Author: Training Day: 400+ Workouts to Incorporate in Your Training.