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P90X and CrossFit

Posted By Mark Sisson On March 5, 2010 @ 10:32 am In Fitness | 193 Comments

Nearly every day I get emails from readers about P90X [7] and CrossFit [8]. Most are favorable, some not so much, but mostly, people just want to know if these fitness programs fit within the context of the Primal Blueprint Fitness [9] methodology. In this article I’ll explore what’s great about P90X and CrossFit, and then I’ll voice my nit-picky criticisms and explain how I think both can be improved upon.

It’s often said that any movement is better than no movement, that simply getting up and being active is better than sitting on the couch and stewing with guilt and self-reproach [10]. For the most part, I agree with this assessment. It’s imperative that everyone be active, even if it’s just taking nightly walks or using the treadmill at the gym. But “just any old movement” isn’t ideal. Ideally, we should be performing movements that support, enable, and enhance quality of life. Our exercises should make us stronger, faster, and more capable of accomplishing just about any physical feat the world throws at us. They should be enjoyable (pleasure-giving), brief (without sacrificing effectiveness), sustainable (lifelong), immediately accessible (to young, old, and untrained), and infinitely scalable (from beginners to elites). A fitness program, then, should meet these benchmarks.

Do P90x and CrossFit qualify as good fitness programs?

Absolutely, yes; they’re better than 95% of the other stuff out there. They both include high-intensity interval training, full body resistance work, endurance development, and mobility. They’re very clearly laid out for trainees who need structure to make progress. Buy the DVDs and you get the full P90X package; log onto CrossFit every day and you get access to the daily workouts free of charge. Tony Horton (of P90X) is one of my best friends, and I’m the guy who showed him the beauty of interval workouts. I also designed the P90X recovery drink, which, I’m told, is more addictive than crack (too sweet for me). The PB eating plan works perfectly with CrossFit, which is probably why we have so many supporters from that camp. All in all, there is definite kinship between the PB and the other two programs. There are many mutually shared interests, directions, and focuses. There’s a lot of crossover. Both programs get people up and moving – and amidst our culture of sedentarism and sloth, I can’t get upset with that.

P90X promises a beach-ready body: defined upper body, ripped abdominals, reduced body fat. For many people, it delivers on each. If you’re interested in building muscular endurance (not necessarily raw strength), or if you’re a former athlete with a good amount of muscle underneath a couple years’ worth of flab, P90X might be right for you. If you want an ass-kicking workout that leaves you panting and heaving and sore all over the next day, P90X will provide it. You’ll certainly be able to do more push-ups and pull-ups by the end of it.

CrossFit promises to forge hybrid gymnasts, powerlifters, and runners – all around athletes who can perform Olympic lifts, complex gymnastic moves, then get up and run a 10k (and make a respectable finish). CrossFit generally doesn’t produce elite, specified athletes, but it produces guys and girls who are stronger, faster, and more powerful than almost everyone else. Some people think that’s a criticism of CrossFit, while I think it’s one of its strengths.

As I noted above, I get a ton of reader emails about both CrossFit and P90X; in the Primal world, they’re probably the two most popular programs out there. Some people are pleased with their results. They get stronger, fitter, healthier, and better-looking by following them. But others aren’t so happy. These other readers talk about being burnt out, overworked, overtrained [11], or even injured. As much as I admire both programs and their creators, I think both could be improved upon.

Now, is it the program, or is it the user? Who do we blame?

As usual, there’s a little from column A, a little from column B. Assigning the totality of blame to either CrossFit/P90X or the trainee is silly. Acknowledging both the limitations of the programs and of the users is the far better option. CrossFit isn’t a perfect fit for every possible trainee, nor is P90X guaranteed to work for absolutely everyone who tries it – and that’s totally fine. But it also means that neither CrossFit nor P90X are ideal paths to fitness. In my book, remember, a fitness program should be lifelong and accessible to everyone. (Note that accessible doesn’t mean one size fits all.)

It’s commonplace for online discussions of fitness to descend into screaming matches laced with profanity and hyperbole, buttressed by rigid ideological stances that refuse to budge. This won’t be that.

You’ve heard why I like CrossFit and P90X – and I do like them, believe me – but this is where we diverge:


A program you can’t keep doing is hardly a program worth doing. Fitness should be a lifelong endeavor. It’s not just for the young bucks with limber limbs and supple, indestructible ligaments. It’s for the oldsters, the washed up athletes, the wide-eyed beginners, the moms, the dads. As it’s actually practiced, I think P90X is probably too much to do as a lifelong program. It isn’t even advertised as such, to Tony’s credit; it’s billed as a crash program designed to get you lean in 90 days (which it does well). To anyone currently doing P90X – do you expect to be repeating the cycles into your twilight years? Over an hour a day, six days a week? I just don’t think I’d have the stomach for that for very long.


I harp on the overtraining [12] issue all the time. Next to inadequate or nonexistent training, overtraining is the biggest issue plaguing most trainees. If you don’t give your body enough downtime to recuperate, you’ll find it very difficult to get stronger/faster/quicker/more powerful. You may see some improvement over doing nothing at all, but you could just as easily undo any progress. Both CrossFit and P90X prescribe near daily high intensity training. Certain individuals relish the workload and even thrive on it. Some people can bounce back from a day’s workout and be ready to demolish their body all over again the next day. I think the 3 on, 1 off CrossFit schedule and the 6-days-a-week P90X schedule have their place in a training regimen, but they can easily lead to overtraining – especially if you go 100%. Intensity is important in training, but I worry that six days a week of over an hour of daily high intensity training will venture into diminishing returns territory for many trainees.

Injury avoidance

I hate injuries [13]. I hate downtime [14]. I work out in order to fuel the fun stuff – the Ultimate Frisbee [15], the hikes [16], the paddleboarding [17]. As such, if my fitness efforts result in an injury that prevents me from playing, those fitness efforts are counterproductive. I love CrossFit, but people do get injured. Either they don’t have their forms locked in, or they’re going too hard for too long, but injuries do occur. CrossFitters will plainly admit that there is an inherent danger to going all out, day in and day out, and that’s actually part of the appeal. But at my age, I’m not interested in pushing my limits. Judging from plenty of reader emails, there are other people that feel the same way. If you’re a relative newbie and decide to do CrossFit, don’t just launch into the complex Olympic lifts, especially at high reps. I’ve seen overeager beginners do this, and they often mess themselves up.

The Need for Glycogen Replacement

Because my business background is in supplement design, I was brought on the P90X team (7+ years ago) to create a recovery drink that fit their demographic and the recovery requirements to allow someone to go hard nearly every day for 90 days. Simply put, if you’re doing P90X as prescribed, your body is going to need to replenish depleted glycogen. I am no longer associated with the company that markets P90X (although my likeness is shown on all the in-home products talking about replenishing glycogen) and, of course, my own ideas about how much we ought to be working out are different from P90X. If you work according to the PB, you don’t need to replenish glycogen with post-workout [18] feedings of sugar. And you shouldn’t.

So, what makes my upcoming Primal Blueprint Fitness program better?

I suppose the honest answer is that we’ll have to wait and see. I announced my plans to launch Primal Blueprint Fitness [19] later this year just this Wednesday. It won’t be until the program is in the hands of users and they’ve had a chance to incorporate it into their lifestyle that we’ll be able to make a fair assessment. That said, PBF is being designed to be a comprehensive, full-body fitness program that focuses on brevity without skimping on intensity. Primal Blueprint Fitness is CrossFit for the rest of us; it’s P90X without the massive time commitment. It’s about getting the best results with the least amount of input. See, I’m interested in helping as many people as I can, so I’ve designed it with everyone in mind. I’m sick of watching people hobble around with canes or old injuries. I want to see seniors bounding up stairs. I want to see people get six packs without actively trying to. More than anything, I want people to get stronger, fitter, and healthier. The athletes can scale things up and increase weights or reps, while the less advanced can just use bodyweight, but everyone will be doing the same movements that our bodies are designed to perform. Best of all, you’ll be able to follow this program for life, under any circumstance fortune throws at you. You get injured? There are workarounds. Growing older? You can simply scale things down. Out of town and away from equipment? Use your bodyweight. Beginners can instantly jump in. You get plenty of rest, coupled with plenty of intensity, for the best results with no overtraining. You get plenty of instruction on the more complex movements, to avoid injury. And, of course, it’s designed specifically with the PB eating plan in mind [20].

While you await the release of PBF follow the Primal Blueprint Fitness principles [21], use the specific workouts [22] listed here on MDA as a guide, and if you’re looking to make your P90X and CrossFit workouts more Primal break things up with more rest [23], more play [24], and more low-level aerobic activity [25].

I greatly admire CrossFit and P90X, and they’ve produced some excellent athletes. If you’re a CrossFitter or P90Xer and it’s working for you, keep at it! I just think that a lot of people could benefit from a slightly different approach – a fitness program geared toward sustainability, functionality, and overall health. Fitness based on Primal movements, on the precise activities that comprised Grok [26]’s day-to-day existence, distilled down to maximize effectiveness and minimize time commitment. Stay tuned!

Let me know what you think. What are your experiences with P90X and CrossFit? Are you ready to give Primal Blueprint Fitness a try? Thanks for reading and Grok on! [27]

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[1] Start Here: http://www.marksdailyapple.com/welcome-to-marks-daily-apple/?utm_source=mda_wwsgd&utm_medium=link&utm_campaign=mda_wwsgd_start_here

[2] Primal Blueprint 101: http://www.marksdailyapple.com/primal-blueprint-101/?utm_source=mda_wwsgd&utm_medium=link&utm_campaign=mda_wwsgd_pb_101

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[5] support options: http://primalblueprint.com/categories/Store/Services/?utm_source=mda_wwsgd&utm_medium=link&utm_campaign=mda_wwsgd_services

[6] supplements: http://primalblueprint.com/categories/Store/Supplements/?utm_source=mda_wwsgd&utm_medium=link&utm_campaign=mda_wwsgd_supplements

[7] P90X: http://www.beachbody.com/product/fitness_programs/p90x.do?code=GWO_P90X-PLAC2_A

[8] CrossFit: http://www.crossfit.com/

[9] Primal Blueprint Fitness: http://www.marksdailyapple.com/primal-blueprint-fitness-standards/

[10] guilt and self-reproach: http://www.marksdailyapple.com/eat-rejoice-repeat/

[11] overtrained: http://www.marksdailyapple.com/how-to-deal-with-overtraining/

[12] overtraining: http://www.marksdailyapple.com/overtraining/

[13] injuries: http://www.marksdailyapple.com/bodyweight-exercises-and-injury-prevention/

[14] downtime: http://www.marksdailyapple.com/paleo-lifespan/

[15] Ultimate Frisbee: http://www.marksdailyapple.com/ultimate-frisbee/

[16] hikes: http://www.marksdailyapple.com/getting-back-to-nature/

[17] paddleboarding: http://www.marksdailyapple.com/this-is-why-i-train/

[18] post-workout: http://www.marksdailyapple.com/post-workout-fasting/

[19] announced my plans to launch Primal Blueprint Fitness: http://www.marksdailyapple.com/primal-blueprint-2010-action-plan/

[20] PB eating plan in mind: http://www.marksdailyapple.com/definitive-guide-to-the-primal-eating-plan/

[21] Primal Blueprint Fitness principles: http://www.marksdailyapple.com/how-to-succeed-with-the-primal-blueprint/#fitness

[22] specific workouts: http://www.marksdailyapple.com/primal-blueprint-101/#workouts

[23] rest: http://www.marksdailyapple.com/rest-days/

[24] play: http://www.marksdailyapple.com/the-definitive-guide-to-play/

[25] low-level aerobic activity: http://www.marksdailyapple.com/health-benefits-moderate-exercise/

[26] Grok: http://www.marksdailyapple.com/about-2/who-is-grok/

[27] Grok on!: http://www.marksdailyapple.com/what-does-it-mean-to-grok-on/

[28] 7-Day Course on the Primal Blueprint Fundamentals for Lifelong Health: http://www.marksdailyapple.com/subscribe-to-blog/

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