Muscle Shape: The Hidden Factor in Performance

[@theanatomylab]

Thank you to the sponsor of this video, LetsGetChecked! Visit trylgc.com/institute and use the code INSTITUTE25 to get a 25% discount on your home test kit!

[@goodguygto]

Is it a true fact that muscles don't grow back? As in if you cut a muscle it will not grow back the way it is supposed to be!

[@dannyj1983]

As a fitness professional, it's my duty to understand and consistently grow my knowledge about the body. This channel has made me a better teacher for my clients. I can't thank you guys enough for the education you provide!🙏🏽

[@theanatomylab]

You're very welcome! Thank you for the kind words!

[@SoulFighter27]

​@@theanatomylab ive never seen cadavers of that good condition and dissecation personally, its really informational

[@suzukigsxfa9683]

Very respectful of these donors 🙏. I was wondering why the sock was on the foot. The donor and their families should formally honored for their contribution to education.

[@dapperdingo]

The sock on the foot ''helps keep the foot hydrated''. ( 5:00 )

[@charlietheteguandotherherp3922]

He also said in another video that it’s also because some people get uncomfortable to see the toenails

[@dapperdingo]

@@charlietheteguandotherherp3922 I'm still alive and I don't particularly care to be looking at my own toenails. Makes perfect sense.

[@ZA-wm6mm]

His foot was cold. No circulation

[@arcan762]

The donor of the sock?

[@sophiaisabelle027]

It's interesting to see the muscles being dissected. We can clearly see how complex it really is. We appreciate all of your hard work and effort.

[@feezkoh]

Yeah and also Woaa 😮

[@victoria859]

Wow. I’m Amazed. Xo ☮️

[@The_Red_Zealot]

amogus

[@tayzonday]

I couldn’t be around a cadaver without thinking about their life, their dreams, their sorrows, their manner of death, etc.

[@JohnCena8351]

There is a somewhat "high" chance that some of these cadavers have heard chocolate rain at least once in their life.

[@alexfazio]

Congrats, you have empathy. Many folks suffer of a lack of it

[@Altezza447]

This not job for you

[@shiryu22]

hey my friend!!! the internet is crazy indeed. we are lost on this Internet Dream together 😉 cheers

[@snek9983]

choglate rayn sum stae dri and athas feel tha pain

[@Kingnarknark]

Absolutely amazing - As a Massage Therapist, not only hearing you explain the muscle types but also providing such good examples is immensely beneficial. Thank you so much for providing such love and care through these videos, they truly are an exceptional resource!

[@kylerBD]

Have you ever seen a donor body with scoliosis? I have it and would be very curious to see an episode on how it looks inside and the issues it causes to the spine and disks

[@JaKaiMS]

I've been restudying anatomy in an art aspect to be able to draw each muscle anatomically correct. I think this just gave me a bit more inspirational boost. Studying the muscle shape/movement I'd begun to forget what muscle is, it's really fascinating.

[@nursyahidahwee]

Thank u for being the best youtube teachers / educators 🙏 Clear explainations. We need more of u 🙂

[@theanatomylab]

Our pleasure! Thank you!

[@JosephArt]

They should just make this an actual anatomy class and play it for high school and college students. I’m learning more here than I ever learned in school.

[@gary6516]

Did you ever pay attention in school?

[@sk1mpy]

@@gary6516 nope, he is just here to complain

[@arandomperson7914]

@@gary6516 🤡🤡🤡

[@jeremiahpaki5453]

🤡🤡

[@kerruo2631]

Here you go kids, an actual human corpse

[@nmnate]

This stuff is just fascinating. I would love a continued discussion on skeletal leverages and muscle insertion locations. How those affect development of strength has always been intriguing to me. 🙂

[@ironman2326]

I'm a PT...I wish I had supplemental videos of this quality in undergrad for studying. Keep up the great work!

[@theanatomylab]

Wow, thank you!

[@mornewessels8723]

This channel has helped me in my goals of becoming a competent body builder and personal trainer,and i just love how amazing the human body can be on a anatomical level.Thanks for all the effort you put into each video,it means alot.

[@oksanakaido8437]

It kinda blew my mind to learn that we're born with all the muscle cells we'll ever have. I always figured that during hypertrophy/strength training, more muscle cells or more muscle fibers would get created to make the muscle bigger or denser? It was fascinating to see all the different muscle shapes and attachments, and the origin/insertion of all the muscle looks like a hugely complex topic!

[@cimjohansson4878]

you do to some extent get more muscle cells from weight training, but the big majority of size comes from the already present cells getting bigger in diameter.

[@but1z]

Hyperplasia occurs in humans, although to what extent is left to epigenetics

[@dustyfeller]

8:35 Great explanation of the dynamic definition of origin vs insertion points.

[@kittytam1545]

I am a working artist. This institute has given me so many reasons to be grateful. Thanks from the bottom of my heart.

[@Solderconsumer]

If I get the “It’s corn!” YT shorts add one more time, Im gonna make sure these guys are well stocked on cadavers.

[@theanatomylab]

😂

[@Michael-TheArchAngel]

I have been sick of drawings of Anatomy as they fail to make sense to me. I can learn more by seeing things for real, thank you for making that possible. So much respect to the very generous souls who contributed their bodies to research.

[@beme7403]

The human anatomy is so fascinating. I’m always curious to learn as much about it and this channel is like a gold mine. Grateful for all the work you put in to make these great educational videos, and off course the good willed donors.

[@stewie_]

I really love these videos. The muscles in our bodies are so amazing. And you didn't went too deep, it would be a long video otherwise.

[@theanatomylab]

Glad you enjoyed it!

[@johnkeller6171]

I don't know why I started to receive these feeds but I thoroughly enjoy looking and listening to them.

[@jonnyblaze8871]

The fact that origins and insertions swap based on the position the body is and the movements each joint is making was mind blowing!! Honestly they don't have these in textbooks

[@karinbrantner3081]

I learn so much from you guys, I was a vet tech for almost 37 year, still enlightening on many areas not covered in my training, Thank You

[@LauRoot892]

Seriously ?

[@patsgaming8648]

I wish I found out about this channel in high school when I had to take anatomy. It’s really amazing how the Human body works and all of its functions. Keep up the great work

[@ImShadowWRLD]

This channel is absolutely fantastic, I've learned so much and I love nerding out on the human body because it's so fascinating. This is a place where you can learn more than if you were to pay thousands and go to school. Talk about earning a subscription, you definitely earned mine

[@Dsl2034]

I'm actually learning english, sometimes I have difficult to understand because speaking obviously change from person to people in person. But this guy I can understand very well I doesn't even need subtitles. And he explanation is very clear I didn't know what was muscle insertion and muscle origin untill I watched this video (I'm newbie in gym or anatomy).

[@jvillanueva7707]

On a molecular to cellular level, you're using the same Lego bricks, but you put them together and orient them differently to change the structure to fit each skeletal muscle's unique set of functional demands. So cool.

[@donnadeandean2720]

Thank you for educating us on the anatomy. You are very intelligent... wish I had videos like this when I was a student in 1973.

[@jemimalamb78]

One of the best vids yet. I love it when you just nerd out on anatomy 😁❤ love your channel

[@fmc974]

LOVED THIS ONE!! Great job on explaining/educating in a manner that those who've not studied anatomy can understand and appreciate.

[@barzeeee]

one of my favorite videos you've made so far

[@OorahhColeman]

Nice I caught a video less than an hour after it uploaded. Great time to let you guys know how much I appreciate your work! Thanks for teaching my favorite subjects so well and without a paywall. Also for the sense of humor, it is appreciated. Thanks cousins

[@theanatomylab]

Our pleasure!

[@bluefenixalchemy7]

Love these videos, thank you for being such an awesome teacher ❤ Amazing information, super educational

[@bluefenixalchemy7]

Question- in one video you talked about a tendon in the lower forearm, inside wrist area, you said " not everyone has this tendon, or some people may have only one, most likely on dominant hand" I have one on both hands/wrist. - Is this due to being very physically active, or is there a genetic or other reason for this?

[@theanatomylab]

It's purely genetic. Even when a muscle is underused, it still remains.

[@bluefenixalchemy7]

@@theanatomylab Thank you for such a quick response. Now I'm curious about the genetic reason, its obviously pretty rare since most people don't even have one on either side 🤔 I love all your videos, thanks again

[@pmbluemoon]

I love when you all "nerd out" I learn so much! Thank you 🤓

[@pmbluemoon]

@@LauRoot892 Cute 😁 Thank you!

[@pmbluemoon]

@@LauRoot892 I'm in northern Minnesota 😁🥶 Nice to meet you too!

[@pmbluemoon]

@@LauRoot892 Just this one so I can watch KZbin. I'm boring lol

[@LauRoot892]

@@pmbluemoon lol.. lauroot892..😼

[@LauRoot892]

@@pmbluemoon Chris Moon 🌝 🤨

[@escandaloso9052]

I’m obsessed with your channel

[@Cricket2731]

I learned some anatomy as an artist's model. Your vids have greatly enhanced/expanded that knowledge.

[@mihirgurung9227]

I'm knowing more about my body, thank you 🙌🏻

[@sonicwave32]

8:35 I have to say, I'm really glad that you mentioned that these textbook definitions are simply introductory teaching tools based off of a single standard anatomical position. There's a lot of anatomy guides on the internet that list off "functions" of a muscle, which many people in the fitness space use to justify certain methods, but they totally neglect that these "functions" are only based off of that single anatomical position and not how the muscle _actually_ behaves in different positions and ranges of motion.

[@trainwithnaveen_]

Thank you Justin Dada (brother) 💜 I'm a personal trainer from india, I come to this channel to revise anatomy. Really loved the way you explain anatomy with real life examples.

[@theanatomylab]

Thank you brother!

[@flamingaish]

“dada” that's so sweet

[@blankspace1416]

Appreciate the hard work of that gymbro, extremely shredded

[@mmcquay73]

I love this channel !!!! Free anatomical class without the HUGE MEDICAL School price tag and in awesome layman terms!

[@schwerner343]

Man I love this stuff. Form follows function in every aspect of the body and it's beautiful to look at. Thanks for sharing!

[@JoeRiordan]

Fascinating. It boggles my mind that if you lift a heavy barbell, that tiny tendon is holding all that.

[@LauRoot892]

Joe 😼

[@speedo1105]

it certainly makes a difference when you can see a cadaver rather than a picture in a text. excellent presentation.

[@ludwigvonn9889]

0:58 bro the sock killed me instantly, i burst into tears :DDD

[@All-Father-Odin-967]

I wish this had been available to watch in the 1970s, as this is brilliant information. The data that is now available for us all is priceless. I have learned more from your videos than I did at school with Human Biology. Nothing beats this direct method.

[@Drizzymusiq]

Hey you. If you're reading this hope all is well and have a great day please.

[@hispanica316]

Hey you. If you're reading this hope for the exact opposite and don't have a great day please

[@tatsatanjaria9789]

I thought that Spammers are only in India

[@toxicpeng6552]

All isn't well but thanks for asking even if it's a comment.

[@zachkai3129]

It's actually night time rn

[@thanosboi2720]

I hope everyone has their own day.

[@fangzhouliu3343]

As a climber and just someone interested in human physiology and psychology, this is amazing free content. Thank you so much!

[@KirwinWebb]

You can just tell that this guy is passionate about human anatomy, this was wonderfully captivating.

[@Jina06]

Wow!!! 😮 Thank you for this insightful message. It’s been beautiful.

[@Michito7]

Espectacular! Gracias por ayudarnos a conocer nuestro maravilloso cuerpo y sus funciones 👏🏽👏🏽👏🏽

[@alexxperepolov6447]

This awesome video is in my Top-2 the most cool videos on this channel. You rock, lads.

[@TheKramer841]

Please don't stop making videos until u have exhausted the information completely. You seem to be a very good teacher. Appreciated.

[@extrastuff9463]

This whole talk about how a muscle transitions into a tendon and then finally into bone has me wondering now about the particulars of tendons. In particular I'm kinda curious about how you get them solidly attached again after certain surgeries, I vaguely remember a description that roughly translates to "reattach tendon" when my total hip replacement was discusesed. But seeing how those muscles, tendons and bones are connected it seems a bit like a miracle to reliably and solidly reconnect such things. I suspect some of the restrictions on range of motion and activities the first 3 months might have had to do with this? Oh and seeing orientation and lack of gaps in the chest muscles, what is the long term impact of major surgeries there? There don't seem to be a lot of gaps to work with at the top covering the ribs.

[@matiaslangon6799]

I believe that tendons just get sewn together to be reatached, and then they just heal on their own, kind of like getting a cut in your skin, it get's sewed and then closes on it's own. I guess it's the same for muscles, but I also wonder about the impact of surgeries on the chest muscles.

[@Slydime917]

14:03 didn't know muscles could be so beautiful with a feather pattern!

[@savagepro9060]

After all formal education, I finally understand what a tendon is. Next: explain ligament!

[@billymills4238]

This is a great video, helped me understand the rectus femorus distal insertion

[@philipmammina7525]

Excellent teaching, thank you!***** One note - Anatomical Position at 8:42 should have palms facing forward.

[@mohamadzbib]

thank you for sharing all this clear information, your channel helps us to have a clearer better understanding of what we learn from books

[@IsmaelPedraza]

This is a great video. I would like to see a video that explains how to improve your workout at the gym from an anatomical perspective. As in, muscle specific function, intended range of motion and even ideal diet for different outcomes i.e. hypertrophy, endurance, etc. Thank you for putting the time on these videos guys. Good work

[@ULYS5ES]

Hey there, I have been suffering from sinusitis for quite a long time. I searched for it on your channel but couldn't find it. Could you make a video showing the sinuses in detail? And one more thing I'm curious about, how old are the cadavers you use? Have a wonderful day.

[@theanatomylab]

We can definitely do a sinusitis video. Keep an eye out for one early next year. We've had each cadaver for varying amounts of time. The oldest has been with us for 10 years, and the newest for less than one year. As for ages of the individuals when they passed away, it varies from low 70's to mid 90's.

[@marky5493]

Yo I used to suffer from sinusitis for years! My dad and brother still have it and I was always told it was genetic. Since covid, I gave up sugar and dairy and limited my bread drastically. From being blocked up with itchy eyes and constant snot dripping for 44 years it took about 6 months to come to the point I've got none of that in my life anymore! In fact I even can smell for the first time since childhood. Good luck!

[@erickg667]

Looking forward to that video too!

[@om5335]

What a fantastic video, pls do detailed video on the types of joints

[@user-fd6oh2qo5m]

Hi, can you do a video on anaesthesia and numbing creams? I want to know what happens under the skin and how they work.

[@theanatomylab]

Sure!

[@smitawagh7441]

Brings back memories teaching muscles. Enjoyed it!

[@ForTheLoveOfCarss]

The details on why the sock, were really necessary😄 (TMI) Great vid!

[@airfoxtrot2006]

Fascinating video Justin, hope you and Jonathan have a great Christmas 😎

[@andresantel2137]

Muscle structure really fascinates me the most

[@brucedeo1981]

Due to compartment syndrome, i had fasciotomies to my legs. I know some %% of the strenght is transmitted through fascia, and doctor told me i'm gonna lose some of my "power" or "explosive" power of the legs. However he couldn't quantify that loss. Do you have maybe any more info on that?

[@smitawagh7441]

Fan of your work!

[@theanatomylab]

Thank you so much 😀

[@roberthill8797]

Excellent show as usual. Very much appreciated as a would be artist. Maybe a future topic, or one needing reminding of, would be the "crick in the neck", or psychosomatic illnesses of the neck pertaining to mood and social situation. Thanks! We love the show and watch it along with dinner, no problem. Everything has a purpose, and nothing like learning.

[@legend8877]

August 16th of this year, I had torn my calf muscle. Bleeding into the leg was very painful. Neuropathic pain in the lower leg is finally gone. The natural healing process was fascinating.

[@dhanrajmane12]

Love from India 🧡

[@111t03]

Wow! This was enlightening. Thanks for making this!

[@LauRoot892]

Lecter 😏

[@111t03]

😉

[@LauRoot892]

@@111t03 Where are you from ??😊😏

[@111t03]

For the right reasons, I can be anywhere & everywhere. I reside on the internet for now.

[@pavluntos]

all these muscles are fantastically beautifull. thank you!

[@theanatomylab]

You're so welcome!

[@Raven-kv9mb]

Fascinating!!

[@5gallonsofwater495]

Now I'm staring at my muscles in amazement of how nature designed it.

[@michaeld4326]

God* there are so many obvious examples that there is a grand designer but people would rather worship creations rather than the creator. If we have 1% more or 1% less oxygen on the earth we would either suffocate or burst into flames. We have the exact perfect conditions for life on Earth. Perfect distance from the sun etc. Much of our living conditions are mathematically impossible if left to chance. Rather incredible.

[@5gallonsofwater495]

@@michaeld4326 i mean some people adapted to higher altitudes, but cool bro

[@xxhamedxx01]

10:45 Very cool! A question that I always carried troughout my child hood was "Why can we only lift one of our eyebrows up and not the both?" Everyone I asked and test for this had the same experience! I wonder if it has to do anything with muscle imbalances in the face!

[@brianbanks3044]

Reminds me of the Firestone 721 tire from the 80.."Seven wrapped around Two wrapped around One " design...hmmm, I wonder where they got that idea????

[@theanatomylab]

If it isn't broke, don't fix it, I suppose

[@dennisjackman178]

Dude that was awesome. Great job.

[@MotivateElevateTN]

Thank you from Knoxville Tennessee

[@RawDoggin_78]

i have never learned as much about muscles and tendons from my high school teacher as i have learned from you right now, if educational videos were muscles this one would be a bipennate lol

[@theanatomylab]

Thank you!

[@kimberlyhanley5905]

I’ll include this video in my massage classes at school.

[@segretoesconociuto]

I loved the class! Thank you!

[@kevinduran9337]

Amazing! Thanks!

[@LauRoot892]

Kevin 👋

[@allisoncarson8637]

Thank You for Nerding out Justin😆🤗 always a fun & informative time ☺️👍

[@LauRoot892]

Carson

[@ganeshnath69]

Meny meny ..love and wish from India.bro..lot of documents provided free for education God bless you my bro

[@Shivoham2243]

I love this channel soooo much

[@cesarlopez1308]

Great video great teacher thank you

[@soleilmanipura6565]

Thanks man I appreciate it very much as an expanding massage therapist 🙏🏼✨🍀

[@carlscheck511]

Love watching this

[@randyrowett7998]

Excellent learning video resource.. Thank you

[@alexandremasson7916]

Thank you! 💪🏻🦵

[@chinnyrox2022]

I just had the muscles lesson in Spanish, now in English here, superb! 👌😌

[@zaidmuhammad862]

I really enjoyed this video. Thanks 👍

[@ag135i]

At the end of the day we are all human beings irrespective of the race, creed or position.

[@Ringmaster78320]

What I've never had properly explained is how we can make our muscles bigger. Is it growth by feeding or is it true that exercise breaks fibers and protein rebuilds those fibers?

[@kochpeter7174]

Nobody knows exactly

[@shagunguitar]

Thank you very much. 🙏 Love from India. 🇮🇳

[@SylviaTaylor-pd9ct]

Give whatever you are doing and whoever you are with the gift of your attention.

[@ahmeds.jabbar4974]

nice socks, love your vids. They really help me study.

[@theanatomylab]

Glad you like them!

[@eatmanyzoos]

can we get a before and after working out a lot? or a regular vs ripped person's cadaver? thatd be interesting.

[@theanatomylab]

Unfortunately the cadavers that are available to us are all 65 or older.