Does CRYOTHERAPY Actually Work (Increase Gains and Recovery)
00:00thanks to Squarespace for sponsoring this video [Music] all right what is going on everyone I want to welcome you all to a new episode of myth-busting where every Monday we're gonna take a look at some common fitness or nutrition idea look at where that idea came from and then figure out whether it's true or false based on the most recent scientific evidence so this week we're gonna be looking at the idea that cryotherapy improves recovery from training and just to be clear we're gonna be using cryotherapy in its etymological context which derives from the Greek cryo meaning cold and therapy a' meaning to cure so basically any form of therapy that involves cold treatment and just to differentiate here modern whole body cryotherapy is when you just sit in a really cold room set at negative 100 to about negative 200
01:00degrees celsius for 3 or 4 minutes and a related form of cryotherapy is cold water immersion therapy which is when you just sit in a cold water bath for 10 minutes or so um so these are both technically cryo therapies however when people use the term cryotherapy they're usually referring to whole body cryotherapy where you'll sit in a chamber or some cold room but regardless we're gonna cover both of these so first where did the idea that these cryotherapy treatments that can improve recovery come from well it probably dates back to at least 2500 BC when ancient Egyptians would use cold compression treatments for wounds and inflamed injuries there's also record of Napoleon's surgeon using extreme cold as an anesthetic in the late 1700s and through the 19th and 20th centuries cold treatments remained popular and medical practice with applications and treatments of headaches neuralgia and specific cancers however it wasn't until 2002 that ice baths became all the hype and sport circles when English long-distance runner Paula Radcliffe attributed her gold medal in the 2002
02:00European Championships to ice treatment and she claimed that it's absolute agony and I dread it but it allows my body to recover so much more quickly and then the mainstream popularity of the more modern whole body cryotherapy has even more recent than that although the first cryotherapy chamber was built in Japan in the late 1970s it's only been widely available in the United States for the last decade or so and since then it's really just blown up in mainstream fitness circles but if the real question is is all of that hype justified and I think in order to answer that question we need to have a look at what the scientific evidence has to say now I actually covered this study in another video but very quickly a 2016 study comparing the recovery effects of whole body cryotherapy and cold water immersion therapy in ten subjects after performing five sets of 15 reps on the leg curl found that at 0 24 48 and 72 hours after training cold water immersion was better at improving recovery than whole body cryotherapy and
03:00that was measured by a muscle soreness counter movement jump height and creatine kinase levels which is a marker for muscle damage and while whole body cryotherapy is a newer methodology all of the research that we currently have comparing it to cold water immersion basically shows it to be worse including a 2013 meta-analysis comparing the two so cold water immersion definitely seems to be better than whole body cryotherapy but for all that is it actually worth doing still so I'd like to first look at its effect on muscle soreness and a very comprehensive 2015 systematic review and meta-analysis looking at 36 articles found that overall cooling treatments did significantly lower the symptoms of delayed onset muscle soreness at the 24 hour mark compared to the control condition which basically just involves sitting or standing in a room set at a comfortable temperature and this soreness reduction continued for up to 96 hours and all the studies included that looked at that however muscle soreness may not be the best gauge of recovery especially given how subjective its measurement is and
04:00the authors noted that cooling didn't affect objective recovery variables such as lactate levels creatine kinase levels or interleukin 6 levels and I think there are also a number of other limitations with this research probably the main one is that it's virtually impossible to blind the subjects in this case so they're fully aware of whether they're in the treatment group that's getting the ice bath or the control group that isn't getting the ice baths and I think that that leaves them very susceptible to the placebo effect and it could very well be the case that since there is such a widespread belief that this cold treatment therapy is effective at reducing soreness that could sort of be playing into the subjective reports of these subjects in terms of their own perceived levels of muscle soreness after training and in the days after the ice bath and of course I think all that we think we know from this present analysis is that some sort of cryotherapy seems to be better than just sitting there basically doing nothing at reducing delayed onset muscle soreness however that doesn't
05:00speak to how it might stack up against other recovery modalities such as doing a 10 minute post-workout cooldown and in fact a recent issue of the mass research review highlights some newer research showing that Coldwater immersion therapy doesn't improve recovery better than a simple 10-minute low intensity bout of cycling now some people may note the time-tested efficacy of cold or ice based treatments at reducing inflammation and while this has been shown to be effective in animal models especially following injury at 2017 study in the Journal of physiology notes that no research has examined whether Coldwater immersion reduces local inflammation in human skeletal muscle after a resistance training and it also points out that the repair of skeletal muscle tissue following injury is complex and involves interactions of a ton of different mediators and pathways and it's not even clear that reducing inflammation is the best way to recover from exercise in fact some research shows that reducing inflammation and muscle after injury often in kids muscle repair and while their overall
06:00conclusion had a very skeptical toned authors do acknowledge that less muscle soreness after intense exercise may be the most consistent effect of cold water immersion but still as of 2017 the mechanisms through which cold water immersion reduces soreness is still unknown but it may have something to do with no Chi scepter or pain receptor activity and I think it's worth pointing out here that delayed onset muscle soreness or Dom's probably not caused by inflammation and this is a common misconception and I think it's led a lot of people to seek out treatments that reduce inflammation as a way of reducing delayed onset muscle soreness also things like anti-inflammatory medications or ice treatments but it stands to reason that even if these treatments did reduce inflammation locally and muscle that doesn't imply that it'll actually effectively reduce muscle soreness but with that out of the way it does really seem to be the case that certain therapy's due reduce muscle soreness after training but for all that it may not be linked to their reduction in inflammation which I don't think they've been strongly shown to do and even still
07:00this potential reduction in soreness may come at a cost in 2015 Roberts and colleagues split 21 trained men into two groups both groups trained lower body only twice per week for 12 weeks but one group underwent ten minutes of Coldwater immersion after every training session and the other group did 10 minutes of low intensity cycling after every session and after the 12 weeks the simple cycling group saw improved muscle mass and improved strength more so than the Coldwater group for every measure that they tested and in a follow-up study the same research group determined that the muscular and performance detriments from the Coldwater therapy was likely due to a dampened anabolic signal and from decreased satellite cell activity and the authors concluded that the present findings contribute to an emerging theme that cold water immersion and other strategies that are intended to mitigate and improve resilience to physiological stress associated with exercise may actually be counterproductive to muscle adaptation okay so in conclusion I would say that cryo therapies including whole body cryotherapy and cold water immersion
08:00improve recovery from training is pretty much busted doesn't seem to be the case that some of these cryo therapies do reduce muscle soreness following training however all of the other measurements of recovery don't seem to be too much in favor of the cryotherapy camp and in fact they make on that quite a cost when it comes to muscle hypertrophy and performance adaptations it does seem to be the case that they might reduce muscle soreness in the days following training however I think there are methodological flaws with that body of research and I would also point out that there are other recovery modalities things like just having a simple ten-minute cooldown on the bike following training or doing some foam rolling may also be an easy way to sort of reduce that muscle soreness and in my opinion it might be a cheaper and perhaps more bearable way to reduce soreness and dunking yourself in a tub of cold water after training furthermore whole body cryotherapy seems to be worse than cold water immersion therapy so if
09:00you're gonna pick between one or the other the ice bath is the way to go however it isn't perfectly clear that even the ice bath is really any better than just doing a simple 10-minute cooldown and in fact these cryo therapies may be coming at a cost as some of the more recent literature has shown that it may not be that great in terms of muscle hypertrophy and strength performance it may actually dampen some of the anabolic signals associated with training um so all things considered and bringing this full circle I would say that there does seem to be more of a potential cost than a potential benefit when it comes to these recovery treatment modalities especially when there are other options available that seem to be just as effective use it at your own discretion is what I would say so that's going to conclude this one guys thank you so much for watching the video before we go I have to thank Squarespace for sponsoring another mythbuster I really do appreciate their support on the channel and in particular with this series and if you guys aren't aware Squarespace is the website creator
10:00platform that I've been using to run my own website and my own online store for several years now actually and I find it to be a great service and they have amazing customer support that's always there to help you out if you run into any issues and they have beautiful designer custom templates there's just a huge range of selections to choose from and they're all very modern sleek looking and very aesthetic I'm so if you guys would like to get started with your own website and we're running your own online store you can go to Squarespace com forward slash and Nippert and that will save you 10% off your first purchase thanks again guys so much for watching don't forget to leave me a thumbs up if you liked the video don't forget to subscribe if you're new to the channel and I will see you guys all here next Monday