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Does Lactic Acid Really Cause Muscle Pain?

Published: 4 weeks ago

186,297 Views

11,435 71

For decades, lactic acid has taken the blame for the muscle pain you feel when you exercise - but does it really deserve its bad reputation?

Hosted by: Hank Green

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Sources:
https://pdfs.semanticscholar.org/3df9/b0e32f6223e85af1427bd4b2a6443b789d06.pdf
http://www.jbc.org/content/48/1/153.full.pdf
https://www.physiology.org/doi/pdf/10.1152/ajpregu.1984.246.4.R409
https://www.tandfonline.com/doi/abs/10.3109/10408369109106865
https://www.sciencedirect.com/science/article/pii/S001448271000282X
https://www.merckmanuals.com/professional/endocrine-and-metabolic-disorders/acid-base-regulation-and-disorders/metabolic-acidosis
https://www.physiology.org/doi/full/10.1152/ajpregu.00114.2004

Image Sources:
https://commons.wikimedia.org/wiki/File:Archibald_Vivian_Hill.jpg
https://www.istockphoto.com/photo/young-asian-woman-got-back-pain-gm936377676-256154263
https://www.istockphoto.com/photo/young-asian-woman-got-back-pain-gm936377676-256154263
https://www.istockphoto.com/photo/lightning-field-gm96003006-3028312
https://www.istockphoto.com/vector/graphic-of-a-mad-scientist-with-tesla-coils-gm165609699-7446210
https://www.istockphoto.com/photo/cross-section-through-a-muscle-with-visible-muscle-fibers-gm961867702-262676023
https://commons.wikimedia.org/wiki/File:Otto_Fritz_Meyerhof.jpg
https://www.istockphoto.com/photo/map-marker-gm908241424-250212078
https://www.istockphoto.com/vector/gold-medal-for-first-place-winner-award-isolated-on-white-background-flat-style-gm1042297510-279047793
https://www.istockphoto.com/vector/vintage-pop-art-style-surpised-and-excited-comic-girl-saying-wow-vector-illustration-gm884626990-245908898
https://www.istockphoto.com/photo/exposed-copper-wire-gm173692435-7886385
https://www.videoblocks.com/video/girl-runs-through-the-park-in-the-morning-sporty-young-attractive-brunette-woman-running-on-empty-road-in-the-morning-slow-motion-only-legs-b06f-5e8zj5f1zatl
https://www.videoblocks.com/video/alpha-channel-flames-and-fire-4-eprgrud
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Kristen Smith 4 hours ago

When u just give bio exam yesterday and wrote that lactic acid causes muscle pain because ur text book says so and THEN U WATCH THIS....

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fatpatMC 2 days ago

lactate gets turned back into pyruvate which then gets turned into ATP again aye its a good thing and aye it took me a long long time to get this science right

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SilentProgram 2 weeks ago

I need a gif of 3:28 : "We have to be accurate, but don't be condescending!" ... And the sparkly text - I love it!
Or even better mugs, Tshirts, EVERYTHING!

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a-wanderingcloud 0-0 2 weeks ago

Well damn...

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Jihyuk Yoon 2 weeks ago

https://www.youtube.com/watch?v=00jbG_cfGuQ at 6:26, you say that Lactic Acid causes soreness ahahahahah

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Synalla 2 weeks ago

Poor Hank, he thinks people watch SciShow to be anything but condescending.

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J c 2 weeks ago

Can you give us the science behind correcting a theory without being condescending

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Varler 3 weeks ago

We were just learning that Lactic Acid causes muscle soreness in my college level Prevention and Treatment of Athletic Injuries class. Haha. I wonder what the best way is to show this video to my teacher...

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bob george 3 weeks ago

anyone know what causes gout?

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landofthebooks 3 weeks ago

Its true, I was taught that in highschool also I'm working out right now haha

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culwin 3 weeks ago

Finally someone explains why my frog legs stop working.

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lf 01 3 weeks ago

My whole life has been a lie

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Isitpossible ??? 3 weeks ago

Calmly states that electric shocks caused fast twitches and movements that produce lactate and that lactate is good for you? maybe? Now looking at electrostatic to get a six pack.

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Rick Cutshall 3 weeks ago

Paging Muscle Hank

Muscle Hank, please report to the comments section.

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Da Liang 3 weeks ago

3:39 You ask for the impossible.

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Robert 3 weeks ago

So in theory could increasing the Lactate in your system help with muscle pain from exercise?

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Joe Beaudette 3 weeks ago

Problem is sometimes nowadays ppl don’t even know how not to be condescending lol

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Dez Brenn 3 weeks ago

love him!!!

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jordana309 3 weeks ago

Reading my "uh, ACTUALLY" response for next time I hear this.

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Randy Smith 3 weeks ago

Some time ago i saw a program where they put an ultra-marathoner on a treadmill. This person does dawn to dusk runs for FUN! While on the treadmill they measured his lactate (acid?), and as he ran longer and longer the measurement went down!

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