Single Leg Squat / Pistols – Why bother? Because they are AWESOME for you!!

Jason Haywood shows us how a Single leg squat / Pistol is done

Jason Haywood from Crossfit BodyM doing a Pistol at CFX

The humble single leg squat. Feared and revered. Done by so many people around the world as a test of strength and a strength exercise. I have been teaching my patients variations of this for years – it is such a good exercise…but it isn’t for everyone.

The aims of this blog post are to:

1. Highlight the benefits of doing a single leg squat (but referred to as pistols from here on in)

2. Common pitfalls in doing this exercise

3. Safe progressions you can use so you can pistol with the best of them!

Pistols are an advanced exercise that pops up in Crossfit workouts from time to time as well as at parties for bragging rights! In my experience, it is often BADLY done and I have personally knee cartilage damage to athletes who have done them incorrectly. Having said that, when they are done correctly, they form the basis for great weight lifting, running and agility.

Nice Pistols! She is well-balanced and the upper leg is in line with the lower leg and foot

The Benefits of Single Leg Squats (Pistols)

  1. To do them correctly requires excellent strength, balance and control of your hip muscles. Most of the population have hip muscle imbalances from sitting too much or focusing on movements that they do a lot of. Sometimes, it is just a habit of doing something the same way all the time. Whatever it is, to get them right will give you an excellent base of support to do many activities well
  2. They will help you develop your hip control – esp the deep hip external rotators. This means that you will be able to share the loading throughout the hip and not grind away at just a small portion of your hip – this often results in labral tears and hip impingement
  3. Doing Pistols properly will mean that you have good strength and control through the full range of your ankle, knee and hip joints.
  4. They look cool and few people can do them properly – a great party trick!

At such a small knee bend, you can see this woman struggles to gain control of her whole body – This is a recipe for disaster!

The Common Mistakes Made During Single Leg Squats (Pistols)

  1. Knees “cave in” – this is either due to hip internal rotation (weak hip external rotators) or excessive foot pronation
  2. Dropping into the pistol too quickly or in an uncontrolled way
  3. Twisting your hips and body to get your balance – sort all this out at a height you can control your whole body in.
  4. Doing them at a level that you are not ready for – this is by far the most common mistake. Swallow your pride and do them at a level that you can do EVERY SINGLE REP correctly. Wobbling around is not good for the cartilage in your knees. It takes longer to progress but believe me, surgery for your knees sets you back in the long run!

Safe Progressions You Can Use To Get Your Pistols Better

Jason Haywood from Crossfit BodyM shows us from side-on

Thanks to Jason Haywood from Crossfit BodyM for being our model! Perfect pistols!

Note, for all of the progressions below, you can start the next level of progression so long as you keep it to a height you can do properly. That way, you will develop more skills in less time…otherwise you will be waiting a long time to master a full depth squat before moving one foot forwards!

  1. Listen to your coach, physical therapist, or other health professional you trust…but make sure they read this first!
  2. I always start people with a normal squat to a chair or box and then see how low they can go. If you can’t do a 2-legged squat correctly, what chance have you got at doing it right with only 1 leg!!?? GOAL – Gluts to your heels
  3. Next progression is to do the same thing but with more weight on one leg and have the other out in front with only your toes or heels on the floor. Start at a comfortable height, keep your knee tracking over your foot and be controlled on the way up and down. Slowly lower the height you can do – no “dropping” into the seat or onto the box! GOAL – Full depth squat with more weight on one leg than the other
  4. The next step is to lower with the other foot still just touching the ground for balance but then raise that foot and try to stand up from the height you stopped at. You may have to stop at a higher height to do this properly. GOAL – Full depth squat on one leg with light weight on the toes of the other foot for balance but can stand up on one leg without twisting.
  5. Lowering with control on one leg and raising up with control still on one leg. GOAL – No wobbling around, full depth Pistol down and then up. When you can do this, you have just completed a full Pistol!
  6. Start adding weights – outside the scope of this blog post but watch for an upcoming e-book about air squats and pistols :)

Aim to get at least 1 set of 15 reps at a certain height before lowering the box height or seat.

How many reps should you do? As many PERFECT reps as you can. They are the only ones that count. I like my patients to start at 1 rep and work up to a set of 15 perfect reps before adding more sets. Ideally, 3-8 sets of 8-15 reps would be nice – very time consuming though!

Poor hip control – note the upper leg is NOT in line with the lower leg and foot


  1. DO NOT sacrifice your form. Keep it PERFECT. Perfect practice equals perfect performance!
  2. Keep working at a height that you can do perfect reps in. Then lower the seat (or increase the plates under your feet) by only a few cm at a time.
  3. See point 1! I do not want to see patients who have hurt themselves due to their oversized egos. Swallow your pride and get it right first time.

If you have any hints or tips about how you do your Pistols or if you have any questions about your form, please write a comment below. Thanks!


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About Antony Lo
Antony Lo is an APA Musculoskeletal Physiotherapist based in Sydney. His website is He specializes in the management, treatment and prevention of pain and dysfunction, particularly of the pelvis and ribcage. His sub-specialties include Crossfit and Exercise Performance Optimization, Ante-Natal and Post-Natal Care and difficult cases that have failed treatment elsewhere.

18 Responses to Single Leg Squat / Pistols – Why bother? Because they are AWESOME for you!!

  1. Erika says:

    I want to work up to these. I’m currently doing one-legged squats (just to 90 degrees – actually not quite to 90 on the bad leg, which is noticably wobblier than the good leg) with a swiss-ball on the wall to help with my little ITB issue – wondering why you don’t have these as a modification on the above – is it just too soft with a swiss ball? LOL

    • Antony Lo says:

      Hi Erika, Thanks for your comment. I don’t encourage the ball because it puts the weight too far back. I would prefer the weight a bit more forwards like in running. It is easier to progress with having your toe on the ground in front to having it off the ground than from your weight too far back to bringing it forwards. It is like wall squats – lots of people can do a perfect squat with a swiss ball on a wall but can’t do one without it…it is the same principle :)

  2. joe says:

    my physical therapist is always pushing me to do these in order to help my knee pain but i find it very hard to keep my hips straight as my bum always pops out the side after a few squats and i lose my form, any advice in how to stop this from happening ?

    • Antony Lo says:

      Hey Joe – sorry about my late reply – been busy!

      Without knowing anything about you, I suggest that you are going past the safe point of the exercise. Follow the progressions above. Value perfect technique highly. Perfect practice makes perfect. Address your weaknesses. Seek advice from someone in your area who will help you achieve your goals, not make you do gazzillions of them or tell you not to do them. There are very few people who can do these to my satisfaction…so i don’t expect many people to be able to do them at all!

  3. Chris says:

    It looks as if the woman in the first picture has the same poor upper leg form as the man in the last picture. Granted, she is hot…

    • Antony Lo says:

      Hi Chris, I can see what you mean. However, the lady demonstrates good hip strength by having her knee out with her hip, not vertical over the ankle.

      By anatomy, women will have more of a difference in distance between the heel and hip when standing on one leg – they usually have wider hips. It is whether you can control the hip that counts most – you can see that she looks really comfortable and everything is aligned nicely in the cardinal planes. The man doing them off the box does not have the hip strength to maintain the knee outside the ankle and so will rotate on the knee joint a lot.

      If we just go by looking comfortable and aligned – aka totally unscientific – Jason and the lady “Zuzanna Light” look much more aligned and comfortable and “right” compared to lots of other photos out there on the Internet.

      Thanks for the observations. I hope the blog post helped.

  4. Ted says:

    Thank you very much for this blog post. It helps me a lot.

    It is quite bizarre actually. Movements that are often labelled safer than others hurt my right knee more than those that are often classified as harmful.

    For example, box squats and low bar back squats where I sit back actually hurt after a while. On the other hand, front squats where I sit more down than back feel much better.

    And no other exercise seems to help my knee more than the properly performed pistol squat – yet some coaches argue it hurts the knee more than it does them good. I rather listen to my body, and the pistol in my opinion is just a great exercise.

    Have you seen this video? – unbelievable strength endurance:

    Thanks again! All the best, and God bless!

    • Antony Lo says:

      Hi Ted. Thanks for that. Great link!
      It is hard to know why your knee doesn’t like the other motions. I would hazard a guess that perhaps you have some form of muscle imbalance? Without seeing the movements, I can’t really comment more. Perhaps you might send me a video of it or put a link here and I can comment more for you :)


      • Ted says:

        Thank you very much for the quick reply and the generous offer.

        It is indeed a strength imbalance that is causing my problems. For this reason I have scheduled a session with one of Charles Poliquin’s students as they put a lot of emphasis on structural balance.

        In your experience and opinion, does Poliquin know what he is talking about? He seems to be quite a rule breaker. For example, the vast majority of coaches and phyiscal therapists suggest when squatting to either break at the hips first or to break at the hips and knees simultaneously. Poliquin, when coaching the high bar back squat, actually advises to initiate the movement by breaking at the knees first. It’s hard to know who to believe. But I would trust your judgement. What is your take on that, if you don’t mind me asking?

        I do not have a quality camera handy at this point. May I get back to you about this matter in a few weeks after the Poliquin guy worked with me?

        Thanks again!

        • Antony Lo says:

          Hi Ted. In general, breaking at knees first is less preferable because it loads up that Patellofemoral joint earlier. Having said that, it may be right for you. Also having said that, sometimes people say things but mean something different.

          Bottom line is that you have to do what is right for your body. You should know if it is right nearly straight away.

          But my hunch is that knee flexion first is not ideal…

          • Ted says:

            Thank you, Antony, this makes a lot of sense.

            Funny how some can (seemingly) get away with things that are not optimal. Maybe it will catch up with them sooner or later. Look at Dabaya (who is one of my favorite lifters). Perfect form for olympic lifting, but the knees don’t like that one bit, do they? :-)

            Thanks for all you do. Your site is awesome.

          • Antony Lo says:

            Hi Ted. Thanks for your kind words.

            His form was nice. He actually flexes at hips and knees simultaneously (or near enough to it). I would consider this to be fine and ideal, especially with 200kg on your back :) It is unwanted shear and rotation that we want to cut out. And progression at a rate that allows your cartilage, ligaments and tendons to cope (they grow and adapt a lot slower than muscles).

            If he is being held up as someone who bends his knees first, I wouldn’t say it was so bad. I mean starting your squat from the dip position as if you were jerking….that is not how to start a squat!

  5. Ted says:

    My apologies for the misunderstanding. I know English as a second language only as I am German. I try my hardest. Please bear with me.

    I think I know what you mean now: I perform the front squat similar to Dabaya. Always thought I was breaking at the knees first (by definition, common understanding). Didn’t realize people had quite an exaggerated knee break in mind, as in a Jerk as you said.

    To clarify …

    This is not ideal, right?

    But this is fine?

    Klokov obviously pauses for quite a while. He does not come straight up but brings his hip back first a bit. Do you think he does this to load his hamstrings or does he have relatively weak VMOs and has to use this trick around that?

    Performing the lift in the fashion in the video below, with vertical tibia, always felt unnatural to me:

    Thanks again. I hope I am not demanding too much of your time. I really appreciate you taking the time off your busy schedule to help out a complete stranger like myself.


    • Antony Lo says:

      hi Ted,

      Apologies for the delay in getting back to – it has been a bit hectic!

      1st video showed her bending her knees early – in the end, it wasn’t a bad squat – let’s see what it looks like with some load on
      2nd video is Klokov doing one rep. It isn’t because of weak VMO – VMO works in the last 15-30deg of extension. It would likely be that his legs are stronger than his back which cause the back to lag behind a little bit – this is quite common and makes sense since the leg muscles are so much bigger
      3rd video is not too bad but he won’t lift a heavy front squat if he keeps leaning forwards like that!

      Lastly, your English is far, far better than my German. never apologise because you can speak 2 languages (or more). If your German was bad, maybe apologise for that. The fact that can speak 2 languages is great. I am not that clever ;)

      Good luck with the lifting!

  6. Ted says:

    Thank you very much, Antony, for your kind words and the highly interesting pieces of information. I appreciate your efforts.

    I am often told German is hard to learn. Maybe learning a hard to learn language first as mother tongue makes learning a second and third language easier down the road.

    Again, thank you very much for all you do. Awesome website, and I can easily tell you know what you are talking about (which, unfortunately, nowadays is rare on the internet).

    • Antony Lo says:

      Thank you for your kind words Ted. Part of the reason why I took to the internet was because of a lot of dubious information.

      I am not perfect and I am willing to learn and admit my mistakes and continually improve. If you ever think I need correction, please let me know :)

      Train hard…in a smart way ;)

  7. Ted says:

    Admitting to one’s own limitations is one of the most responsible things one can do. I like your way of thinking.

    All the best,

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