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What Are Muscle Knots?
YouTube: | https://youtube.com/watch?v=Sorp0TUChIY |
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View count: | 1,136,779 |
Likes: | 18,866 |
Comments: | 833 |
Duration: | 02:25 |
Uploaded: | 2016-02-02 |
Last sync: | 2024-12-22 00:30 |
Citation
Citation formatting is not guaranteed to be accurate. | |
MLA Full: | "What Are Muscle Knots?" YouTube, uploaded by SciShow, 2 February 2016, www.youtube.com/watch?v=Sorp0TUChIY. |
MLA Inline: | (SciShow, 2016) |
APA Full: | SciShow. (2016, February 2). What Are Muscle Knots? [Video]. YouTube. https://youtube.com/watch?v=Sorp0TUChIY |
APA Inline: | (SciShow, 2016) |
Chicago Full: |
SciShow, "What Are Muscle Knots?", February 2, 2016, YouTube, 02:25, https://youtube.com/watch?v=Sorp0TUChIY. |
Muscle knots: more mysterious than you think!
Hosted by: Hank Green
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Sources:
http://well.blogs.nytimes.com/2015/07/13/experts-divided-on-makeup-and-treatment-of-muscle-knots/
http://www.ncbi.nlm.nih.gov/pubmed/25603753
http://www.ncbi.nlm.nih.gov/pubmed/25477053
http://www.utc.fr/~sbensamo/pdf/11_Chen_YAPMR53086.pdf
Hosted by: Hank Green
----------
Dooblydoo thanks go to the following Patreon supporters -- we couldn't make SciShow without them! Shout out to Justin Ove, Justin Lentz, David Campos, Chris Peters, Philippe von Bergen, Fatima Iqbal, John Murrin, Linnea Boyev, and Kathy & Tim Philip.
----------
Like SciShow? Want to help support us, and also get things to put on your walls, cover your torso and hold your liquids? Check out our awesome products over at DFTBA Records: http://dftba.com/scishow
Or help support us by becoming our patron on Patreon:
https://www.patreon.com/scishow
----------
Looking for SciShow elsewhere on the internet?
Facebook: http://www.facebook.com/scishow
Twitter: http://www.twitter.com/scishow
Tumblr: http://scishow.tumblr.com
Instagram: http://instagram.com/thescishow
Sources:
http://well.blogs.nytimes.com/2015/07/13/experts-divided-on-makeup-and-treatment-of-muscle-knots/
http://www.ncbi.nlm.nih.gov/pubmed/25603753
http://www.ncbi.nlm.nih.gov/pubmed/25477053
http://www.utc.fr/~sbensamo/pdf/11_Chen_YAPMR53086.pdf
[SciShow Intro plays]
[text: QQs: What are muscle knots?]
Hank: Whether it’s after a long day hunched over your computer or a week of stressing out about a big test, you probably have had muscle knots before. These knots -- otherwise known as myofascial trigger points -- are pretty much what they sound like: painful spots in your muscles. They’re different from the kind of muscle soreness that shows up a day or two after you exercise.
But biologists still aren’t entirely sure what these trigger points are -- or how to fix them. On the one hand, the physical sensation of a muscle knot seems to be real and measurable, and it’s sometimes linked to severe, ongoing pain. The evidence for this comes mostly from magnetic resonance elastography imaging, a form of MRI that allows researchers to examine soft tissues -- like muscles. The images sometimes show V-shaped patterns in muscles that correspond to the little nodules you can feel at the trigger points. So it’s possible that they come from overactive nerves, which send too much of the chemical signal that causes muscles to contract -- which shows up as those patterns on scans. Those extra tense muscles would prevent normal blood flow through the muscle tissue, which would explain why they hurt.
If that’s the case, treatments like massage, physical therapy, and anesthetics might help by relaxing the tissue, restoring normal blood flow, and reducing pain. But some studies have shown that they don’t help, which could mean that our understanding is flawed. For example, in most patients, when researchers injected trigger points with meds that should’ve stopped the muscles from over-contracting, it didn’t affect pain levels. And in some studies, many of the other recommended treatments barely helped more than a placebo.
It’s just hard to know for sure, because these muscle knots aren’t well understood. The diagnostic criteria aren’t clear, which means that studies aren’t all that consistent -- what one group of researchers considers a muscle knot might not count for a second group. So it’s hard to compare results. But there is at least one thing that scientists can agree on: understanding these trigger points is probably important for understanding chronic pain disorders, like fibromyalgia, or chronic, widespread muscle pain. Because in order to properly treat pain, especially chronic pain, doctors need to figure out what’s actually causing it. And maybe, along the way, they will learn more about where those hard, uncomfortable knots come from -- and how to get rid of them.
Thanks for asking, and thanks especially to all of our patrons on Patreon who keep these answers coming. If you would like to submit questions to be answered, or get these Quick Questions a few days before everyone else, go to Patreon.com/SciShow. And don’t forget to go to YouTube.com/SciShow and subscribe!
[text: QQs: What are muscle knots?]
Hank: Whether it’s after a long day hunched over your computer or a week of stressing out about a big test, you probably have had muscle knots before. These knots -- otherwise known as myofascial trigger points -- are pretty much what they sound like: painful spots in your muscles. They’re different from the kind of muscle soreness that shows up a day or two after you exercise.
But biologists still aren’t entirely sure what these trigger points are -- or how to fix them. On the one hand, the physical sensation of a muscle knot seems to be real and measurable, and it’s sometimes linked to severe, ongoing pain. The evidence for this comes mostly from magnetic resonance elastography imaging, a form of MRI that allows researchers to examine soft tissues -- like muscles. The images sometimes show V-shaped patterns in muscles that correspond to the little nodules you can feel at the trigger points. So it’s possible that they come from overactive nerves, which send too much of the chemical signal that causes muscles to contract -- which shows up as those patterns on scans. Those extra tense muscles would prevent normal blood flow through the muscle tissue, which would explain why they hurt.
If that’s the case, treatments like massage, physical therapy, and anesthetics might help by relaxing the tissue, restoring normal blood flow, and reducing pain. But some studies have shown that they don’t help, which could mean that our understanding is flawed. For example, in most patients, when researchers injected trigger points with meds that should’ve stopped the muscles from over-contracting, it didn’t affect pain levels. And in some studies, many of the other recommended treatments barely helped more than a placebo.
It’s just hard to know for sure, because these muscle knots aren’t well understood. The diagnostic criteria aren’t clear, which means that studies aren’t all that consistent -- what one group of researchers considers a muscle knot might not count for a second group. So it’s hard to compare results. But there is at least one thing that scientists can agree on: understanding these trigger points is probably important for understanding chronic pain disorders, like fibromyalgia, or chronic, widespread muscle pain. Because in order to properly treat pain, especially chronic pain, doctors need to figure out what’s actually causing it. And maybe, along the way, they will learn more about where those hard, uncomfortable knots come from -- and how to get rid of them.
Thanks for asking, and thanks especially to all of our patrons on Patreon who keep these answers coming. If you would like to submit questions to be answered, or get these Quick Questions a few days before everyone else, go to Patreon.com/SciShow. And don’t forget to go to YouTube.com/SciShow and subscribe!