Will Crossfit Improve my Endurance for Navy Seal Training?

Happy Tuesday morning everyone!

I got a request from a Facebook friend in regards to how he could improve his endurance for Navy Seal Training. He had also mentioned that he was doing Crosffit as a means of improving endurance for his specific activity. In the video above, I break down one of the several reasons why Crossfit degrades biomechanical function and how it will actually hinder endurance for Navy Seal Training.



Hey, guys. I hope you’re all doing well out there. I got a question from Tyler out in Tempe, Arizona, asking me a question in regards to his joint pain and his endurance because he’s trying to get into the Navy SEAL program. As of right now he’s been doing a lot of Crossfit type training, specifically Crossfit training and it hasn’t really been translating to any better effects while he’s been doing his exact applications for his Navy SEAL training. Well, to begin with right off the bat, I would say if you’re trying to improve your endurance for a functional reality, I would not recommend Crossfit to begin with Tyler, because it doesn’t cover any of the exact applications of what is needed in a dynamic environment to make you a better athlete.

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If you look at any athlete that’s involved at the highest levels of any sport, you will always notice a form of biomechanical efficiency with each one of them and since Crossfit does not stress any of that, specifically in the transverse plain then you’re not really going to see any of the positive effects that are out there. Now, from what I know, Navy SEALs do a lot of running and they do a lot of swimming, both things that involve a significant amount of rotation as you’re going through a range of motion. If you’re not getting those exact applications or improving those biomechanics in your training by themselves, you’re not going to see anything better.

Something that hopefully help you paint the picture a little bit better like for me, I watch a lot of fights and, for me, I’m a big boxing fan.

If you look at somebody like Floyd Mayweather for instance, you’ll notice that that guy thinks efficiency from round one to round 12, and if you notice that guy, that guy in round 12 compared to round one, you won’t notice a single bit of difference. The main reason being is that he’s focusing on techniques the entire time. The same thing goes with great swimmers, the same thing goes with great runners, the same thing goes for any athlete that’s out there.

There’s always a point of biomechanical efficiency found in the majority of all athletes, especially all the great athletes that are out there. If you want my personal take on what you should do, I would really just focus my mindset if I was in your situation, rather than thinking about force output, the way that people do Crossfit one or workout to whatever they are, I would think more about biomechanical perfection while you’re training.

That’s my biggest concern for when I train. That’s what I focus most of my time into is focusing on postural function and focusing on just good efficient repetitions of movement and then I move on from there.

Now, discovering what a good repetition is takes an entirely different approach.

From what I do know, you told me that you had already purchased my videos and that you bought my book. If I was you, I would take a step back from doing any type of conditioning work, any type of hardcore intensive training and what I would do instead is just get on the structural integration program, and I can almost assure you that you’ll feel a major difference. With any fighters that I train that’s the first thing they’ll notice is like, “Wow, my endurance feels great,” even though I don’t have them do any type of endurance training to begin with.

I’ll have them literally go just do their MMA practices or have them go play basketball and then just focus on the structural integration and every single time they come back to me, they’re like, “Man, my endurance felt better. What’s the deal?” Well, when the body is more structurally integrated and it’s actually applying the nucleus of what’s going to build efficiency in terms of those rotational dynamics, then at that point what’s going to happen when you translate into reality when you’re using those dynamics is that you’re going to find a path of efficiency, or as if you do something like Crossfit, they don’t think of that at all.

They don’t train intrinsic core stabilization. They don’t train what a real nucleus or what a good posture actually is, so therefore at that point they cannot move you pass the point where you’re at this given moment of your life. If you want the best bit of advice try thinking about efficiency in terms of repetition.

Stay away from the old notions of saying, “Okay, we have to push really hard to get the results that we’re looking for.” Pushing hard doesn’t really do anything and if anything, you’ll just set yourself up for overtraining. Think perfect practice makes perfect. Practice makes perfect does not create efficiency forever.

It’s perfect practice makes perfect. It’s perfect repetition. If you’re not training perfect repetition, it’s likely that you’re going to build more imbalance the way that Crossfitters do unto themselves and you are not going to find any path of efficiency for yourself when you’re going into your own workouts and pretty much when you’re trying to translate that into your Navy SEAL training.

I hope that helps. This is Naudi Aguilar reminding you to think intentionally and not habitually. Take care.



  1. L July 30, 2013 at 8:30 am - Reply

    Love how you break down things so logically. Be prepared for a barrage of hate-mail from people who are drowning from the crossfit Koolaid!

  2. Buddy September 13, 2013 at 1:43 pm - Reply

    Yea i can see this applying for mma athletes, boxing, martial arts etc. But come on, I do strength and conditioning for pro soccer players in Europe and am completely aware of postural deficiencies that pop out everywhere, hold 97% non injury rate for my trainees of all standard, mostly pro players 90%. I place an emphasis on core training, being aware of your center of gravity and base of support etc. Posture is not well “trained” or even mentioned within the pro athletics especially any work towards achieving a better posture is nonexistent and ive noticed how “removing” forward head posture has made big difference on running mechanics of surprisingly many soccer players. Using external and internal intercostals as a foundation for efficient arm movement during running, like springs, this obviosly doesnt mean arms moving in transverse plane while walking or running cause that would lead to a waste of energy and eventual decrease in performance. Anyways this functional multiplane protocol seems very unnecessary, A good warm up, skill based warm up, strength portion and cool down then taking extra time for dynamic strerching accompanied with stretching based on myofascial meridians will yield the same postural improvements as this ridiculous jumping stuff. Having to badmouth other modes of training is unnecessary, im no advocate of crossfit and acknowledge the pitfalls but concerning endocrine responses with crossfit HIT, large muscle groups, short rest periods, moderate to high volume will take care of the anabolic side and for cortisol to not do unwanted damage for the immune system and so forth giving rest for the Adrenal glands and allowing recovery and remodeling to take place should be for an average done with 2 or more days off from crossfit. Anyone who pays extra for this or buys those books is just almost as big of dingleberry as people who buy the shakeweight.

    • Naudi September 30, 2013 at 10:33 am - Reply

      I do feel sorry that you’re closing yourself off to the context of what I’m trying to communicate. I’m certain there are deeply rooted beliefs that make you feel as such and I’m in complete understanding of this. Hopefully as this company changes the paradigms of how the human body is supposed to be conditioned, you might encounter concepts of what i’ve personally discovered and see how they integrate with you and your body. Either way, the concern on my part is not to make everyone happy, it’s to inform. I’m aware not all people want to be informed on things that may contradict their current values. Good luck and thanks for posting on my site and viewing it, it took a serious effort on your part to do this so I know it’s important to you. Take care brother 🙂

      • Andrew Graham November 8, 2013 at 11:18 am - Reply

        @Buddy: If you think the multi-plane and ‘jumping’ stuff is ridiculous and unnecessary then you definitely do not understand how the body works…on quite a dramatic scale actually! I have a level 3 in S&C even though my degree is in sport therapy and the musculo-skeletal system and if one thing was made more clear to me than anything else, it’s that the S&C syllabus as an educational basis is a very narrow and ‘basic’ world. If i asked you how many movements you learned that contained elements of strength through rotation and high proprioceptive stimulus on any of the 3 levels of S&C…..The answer would be NONE! S&C is a basic overview of basic training.

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