088- Can an Adjustment Make You Stronger?
11 Nov 2025 · 0 min
Dr. Jeff Langmaid reviews 2017 research showing spinal manipulation can change brain activity and increase cortical drive, potentially boosting short-term strength, endurance, and alertness. He cautions against overselling these effects to patients while suggesting practical marketing applications.
Welcome to the Evidence Based Chiropractor providing you with elegant and efficient research based content to help your practice prosper and succeed. Now get ready for a variety of dynamic communication tools designed for immediate growth courtesy of your host, Dr. Jeff Langmaid.
Hello and welcome to the Evidence Based Chiropractor. I AM your host, Dr. Jeff Langmaid. This week we are back with more research and it is all about the central nervous system and the brain and how the chiropractic adjustment impacts each of them. So it is some really exciting brand new emerging research which I am happy to talk about and I think has a ton of application to the conversations that you are having with your patients each and every, every day. But before we dive into it all, I will say a few words as I do each and every week about rock tape rock stock 2017 is still coming up. There still is time to get those tickets for September and see me in beautiful Huntington Beach, California. Peace, love and movement. It's all going down in Huntington. And additionally, if you are looking for a discount code, you can type in Groovy or just hit me up Jeff. The evidencebasedchiropractor.com and I will make sure you get taken care of. I can't wait for it. It's one of the highlights of the year for me and I hope to see you out there. But for today, as I talked about at the top, we are going to discuss how the chiropractic adjustment affects the central nervous system as well as the brain. And really we're gonna look at it from two facets. One is really the hardcore literature, the data. What's the research say? And the second component is what's the con that you have with your patients about this research? Why does it matter to them? And this is an important piece because we're actually gonna touch on two pieces of literature today that I'll cite momentarily. But each piece of literature has been featured not only as a monthly brief from the evidence Based Chiropractor. All of our members get that monthly research updates to build those referral relationships. Check it out@the evidencebasedchiropractor.com, but these papers also are being used for our upcoming month with the Smart chiropractor. And the smart chiropractor, as you probably well know, is really the online and offline B2C. It's using the research to market to and with your patients. So it's letting your patients know who you are, where you stand and why they and their friends should be in your office. But it's all ties back to the research. There's a ton of deliverables with it. I won't go into that right now, but this is an important piece of research because it was framed from both the smart chiropractor perspective upcoming this month. And you can check that out smartchiropractor.com and the evidence based chiropractor. So what are these research briefs? What are we talking about? Well, one was released by Brain Sciences in 2017. This is cutting edge, it's brand new and it was the title impact of spinal manipulation on cortical drive to the upper and Lower limb muscles. And this paper is really, really interesting because I'm going to read two quotes that really frame what that means. So quote number one is the researchers found, quote spinal manipulation leads to short term changes in cortical excitability as measured by a significantly larger MEP max for tms, induced input output curves for both an upper and lower limb muscle and with larger amplitudes of MRCP component post manipulation. Wow. I was a little bit worried than I thought when I was getting into it. Bottom line with this is it appears as though cortical drive, which is an indication of strength is amplified or increased post adjustment MEP max is that motor evoked potential. The research has also found this increased excitability occurs at the cortical level due to the increased amplitude of the MRCPs, movement related cortical potential amplitudes following spinal manipulation. These findings are consistent with previous findings that have suggested increases in strength following spinal manipulation which were due to descending cortical drive and could not be explained by changes at the spinal cord level. So this is a really, really interesting paper. It's the tip of the iceberg. Don't get me wrong. This paper is not saying you get an adjustment you can bench press £20 more. No, it's not that linear. This is emerging research and it's showing the impact on cortical drive. But what if your patients knew that there was a potential that they could be stronger, that they could have better endurance, that they were able to perform their daily living activities at a higher quality? That's really important. And this paper is very important because again, it shows direct stimulation to the cortical pathways to changes in cortical drive directly following a chiropractic adjustment. And and these researchers from Brain Sciences Journal wrote, again quote, these findings are consistent with previous findings that have suggested increases in strength following spinal manipulation. That's very, very, very exciting. I don't know too many places where you can get an increase in strength without taking a pill or a medication or just the rote work of obviously increasing your strength by working at it in the gym day after day. So that's a really, really exciting piece of research, is very important that patients understand because there's potential applications as the research continues across a variety of means. Now, this is the tip of the iceberg. You don't want to go overboard, you don't want to sensationalize the material. But it's something that we should absolutely be hanging our hats on and is extremely, extremely exciting. It's also very exciting when paired with a piece we talked about a few weeks back. That piece was also released in 2017. Evidence based complementary and alternative medicine magazine or journal, excuse me. The paper that they looked at was titled Glucose Metabolic changes in the brain and muscles of patients with Nonspecific Neck Pain Treated by Spinal manipulation therapy. And with this they found changes in brain activity after SMT included activation of the dorsal anterior cingulate cortex, cerebellar vermis and somatosensory association cortex, and deactivation of the prefrontal cortex, excuse me, and temporal sites. So basically what they're finding with that is there's an association to reduced sympathetic nerve activity. So these are very, very important changes. There's changes in the glucose metabolic rate in the brain after a chiropractic adjustment. There's changes on the cortical drive, there's changes on the cortical pathways after a chiropractic adjustment. These two things are extremely important. They're emerging. We're talking research that was released just this year in 2017. What if your patients knew they could have more energy and be more alert because their glucose metabolic rate in the brain is changing after an adjustment? What if they knew that they were able to have better endurance, better strength after a chiropractic adjustment because of what they found with the cortical drive? These are extremely impactful studies when framed from a conservative mindset and from the fact that these gains can potentially be had without any sort of pharmaceutical intervention, without any surgical intervention, without any external factors, save the chiropractic adjustment itself. And with saying that, I would love to hear from you. Email me Jeff at the evidence based chiropractor. I would love to know, how do you think these research studies can be framed in appropriate way for patients? To me it's very clear whether you are a mother that's active and have kids and you're running all over the place, whether they're grown or small children, whether you're a senior citizen that's trying to stay active later in your years, maybe you're into CrossFit. I see the application of these two studies potential of increased strength and increased glucose metabolism in the brain. I see this being important nearly for every single patient population that we come across. And I would love to hear from you on how you think these studies can best be framed and who do you think in your practice that they are most applicable for? Because again, to me these are essential studies that all of us need to be familiar with and also need to be able to inform, educate, enlighten and entertain our patients with. Because of course that is how information and knowledge is gathered and retained is through those mechanisms. So I'd love to hear from you guys regarding that. Additionally, if you have not checked out the smart chiropractor or the evidence based chiropractor, you can Visit each@each.com, so theevidencebasedchiropractor.com or thesmartchiropractor.com I touched on it a little bit at the beginning, but the evidence based chiropractor, as you probably well know, it's all about building referral relationships with other healthcare providers in your community. Nobody's been doing it longer, nobody does it better. I will hang my hat on that all day long. But in addition, one of the new projects I had that started a few months ago with Jason Deutsch is the Smart Chiropractor and that is using very similar content. It's looking to the research, it's looking to what we know and what's out there, the breadth and depth of the research as I speak about all the time and it's using it and framing it in a way that is applicable directly to our patients. Not necessarily, although it could be used for other healthcare providers, it is a lot more patient focused. It's social media graphics we provide, it's weekly research handouts we provide, it's in office reception area, the videos that we supply, it's blog posts and weekly little kind of research update videos all supplied to you all through the smart chiropractor. So if you've been looking to step up your marketing game online, whether you are experienced and want to automate it a little bit more, or whether you are brand new to the online marketing game and just like oh my God, this is confusing and I don't know where to start. Check out the smart chiropractor.com or you can shoot me an email. Jeff the evidencebasedchiropractor.com and I'd absolutely love to tell you about it. So those are a few of the pieces of research that I wanted to highlight. I have one more ask of you. If you've been listening and you like the podcast, give us some feedback on itunes. Any and all feedback. I want it to be honest, but that helps us. The more ratings that we get, the more five stars, the more little paragraphs or feedback that we get saying people like the podcast. Itunes looks at that favorably and helps us reach even more people each and every week. So I hope you have a great week in practice and I will speak to you very, very we appreciate you.
Joining us for this episode of the Evidence Based Chiropractor. Learn more tips for explosive practice development@the evidencebasedchiropractor.com youm can also join the Premier MD monthly membership, enabling you to use what you just heard to maximize results in your office. We look forward to providing you with more dynamic communication tools for immediate growth right here on the Evidence Based Chiropractor.
Sam.
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