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Muscle Fibers Explained - Muscle Contraction and Muscle Fiber Anatomy
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- Опубликовано: 1 июн 2015
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How do muscles work? What exactly is your skeletal muscle system? What are the types of muscles in the human body? Learn about muscle anatomy in this short video!
We look at the different types of Skeletal Striated Muscle Fibers found in the body!
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Woaaah! You just condensed an entire kinesiology chapter in 3 minutes. Well done man!
I teach anatomy and this will be a great tool for my students to use as we learn about the muscle fiber types. Great job!
Great to hear!
this stuff is GOLD!
Thanks! Was just aiming for silver.
+PictureFit hahah yea thata so funny
@@bbillyxgood shit in the hood
That is 20% of exercise physiology class in 1996 !
lol true dat
that must've been a really tough course
about 15 looong minutes to cover ALL the material
no way
Makes so much sense! I feel more comfortable with lifting weights and sprinting. I like training myType IIx muscle fibers more.
& i love how these videos are short yet informative. I'm taking an anatomy class right now :)
Actually you probably are using your IIa fibers. The body does not want to naturally want to use IIx fibers. It generally doesn't want to be used unless you were under some high physical stress.
@@Perseus07av lifting weights is high stress.
@@lilbrocko yes you are, but it's not an all- in- one Fiber type relationship. The body will pair Type IIa and IIx together and so type IIx does not simple work in isolation.
You sir have just gained a subscriber!
Love your vids~
Woohoo, thanks!
PictureFit gainz 💪
You gained another sub by me
Still helping people out! Well done for a short, yet extremely informative video
this guy is awesome😃
YEA!
PictureFit Can u explain Thermogenics and CLA benefits? with and with exercise? Thanks..
*I have a question*, lets say you have been doing slow reps since you started or genetically speaking its possible you have more slow twitch fibers by default. You want to hit the type 2 a and x fibers with fast reps but they are less conditioned as a result of your training and/or genetics.
If my understanding is correct then your ability to lift more weight is more dependent on your slow twitch muscles as they make up an unusually large amount of your power out put and thus you have a hard time lifting heavier weights fast in order to hit the other types. Like I said I'm not sure if the assumption of mine is correct but if this is why I have a hard time doing fast reps at heavy weights can I hit the type 2 muscles fibers better if I take the weight down bunch more notches and lift it faster? If not how can I get fix this? Perhaps its in my head, I just want the most I can get.
Robert Dicke lift moderately heavy with compound lifts short recoveries your tempo should not be fast but at a constant fluid motion while performing the exercise 8-12 reps 60-80% of how much you can lift is good start then try and go for 12-15 reps after a couple of weeks. Learn sprinting drills and techniques start incorporating them into your cardio routine hope this helps
Robert Dicke and one more thing, if you cannot perform compound lifts with good form you may suffer muscle imbalances and still may need a trainer to aide in instructing some corrective exercises not to mention foam rolling, stretching and knowing how and when to start and stop your deloads
Good! Keep doing videos! They are very interesting!
Aurelie Correia Thank you!
Regarding the size principle: are the muscle fiber types recruited according to load (force) or to effort? If you hold a light weight in an isometric contraction, it gets harder and harder as time goes on-your effort increases even though the load stays the same. As you approach failure you end up recruiting all muscle fiber types. You drop the weight once all fibers are fatigued.
effort matters. not the external weight
Both matter
Wait so every skeletal muscle has some of each fiber type in it? What does the distribution look like?
So my bicep would have all three but more of the type II-x????
about a third each, thats why you should train heavy explosive and light controlled to maximise gainzzz
Another great video! You forgot to mention that Type I fibers can't be changed into Type II fibers.
And since the muscles in our body have more of one type of fibers than the other muscle groups (ex: calves are have more type I fibers than type II) you could make a video explaining that!
This has been recommended for 3 weeks now. You think RUclips would think I DONT WANT TO WATCH THIS. love u picturefit
I really enjoy how in depth your videos are. Lots of information covered :)
subscribed!
+Tyler Bray Thank you for the support!
I was always a sprinter as far back as I could remember, and sucked at long distance running. Now as an adult I took a DNA ancestry test, and among other things it told me, just as I suspected, that I'm fast-twitch dominant.
Me too, I have 2 copies of the fast twitch gene, but it hasn't helped me run fast, and if I were to choose one type of running that I think I'm best at I would've picked long distance. However, if I do exert maximum force my muscles do tend to fatigue quicker than most other people's. I don't know what to believe TBH.
Woahh I didn't know you can get that tested.
Ah, could that explain why I've always been so bad at running?
Sounds more like an excuse
Jackal I bet you’re the type of guy to kiss his dad on the lips 😂
Good job on your videos! keep up your good work and don't give up. I hope your videos gets the popularity they deserve.
Best channel on RUclips. Period.
This is very helpful and deficial
Thank you. "You explained so well and easy to understand..
This makes so much more sense to me now than when I read it in the textbook. Thank you!
I enjoy watching your videos. I am a visual learner and your illustrations are really fun to watch and learn. Appricciate it! Don't stop your vids. Keep 'em coming! lol
+Ruby-J. Mendez Will do, and thanks!
THIS IS A FANTASTIC VIDEO!! THANKYOU!!!
covered everything I needed to know for anatomy.. please make more videos!!
Hah, I'll try!
I love this! Very creative and super pleasant to follow! Thanks!
+Kelly Starnes You're very welcome =)
Your channel is pure gold man; you're a legend!
Can you please make a video about how exactly hypertrophy takes place? What exactly happens in the muscle while working out which makes it grow bigger?
It's a lot of science-y stuff. Lots of cell activation. Things like proliferation and differentiation take place. Nuclei are added. etc etc. I would love to but I wouldn't know when I will have the time to break down a video like this.
PictureFit Fair enough man I appreciate it anyway! If you ever do find the time I'm sure it would be an awesome video; even if you only go over the concepts of muscle damage, mechanical tension and metabolic stress via exercise. Thanks anyway and keep the great videos coming!
What would be the type of trainings for increasing oxygen capacity of the type 2X muscle fibers? Endurance, HIIT, Lactate Threshold, or power lifting?
brief and easy to understand.
MJ says thank you for the infomation 👍
This is very helpful and beneficial thank you.
Type II x all the way
best channel of Fitness
un believably educative and informative. THANK YOU
Seriously, each video is better than the one before. Great work! So much knowledge! But how do you know all this? Are you a certified trainer? A Well-informed enthusiast? A Teacher?
+PbVeritas A little bit of everything ;)
His videos are intricately detailed and really help, unlike other mediocre videos.
Well if u go to deep cardiac and smooth muscles are involuntary but both do not work on their own.
Only cardiac muscles are autonomous (can regulate themselves) and smooth muscles are under the control of the ANS
Picture Fit; this was very informative. I highly appreciate your efforts!
Thank you, thank you... You explained it so well and easy to understand
Great explanation.
You really deserve more recognition for your effort..
Thanks!
This channel is gold..!! Great amount of information for fitness enthusiasts.. Thanks this very helpful..!!
Probably the most easiest way for me learn about this. Thank you and I hope you make more videos
+J.H.Thomas Won More videos coming soon =) Thank you for watching! Please share any other video topics you would like to see.
This really helped out to understand this course in my personal training class
Thank you this was very helpful. Love how you made the video colorful
Bro fantastic like really fantastic ! Well put and clear info. You really nailed this!
Thank you so much for this easy to understand video..you summarized a whole chapter for me in 3 minutes !!
It's very helpful to me! When i saw this movie, i understand about muscle fiber! Thank you very much!!
A fitness version asapscienc. Best channel for exercising scientifically
Hi, nice videos.. keep making more of these kinds :)
thanks for the upload. this helped me for my anatomy class.
Watched this when it came out when I was just getting out of middle school, now I see it posted into my University class for exams. Wild circle
Excellent video , I've found this is one of the most overlooked and misunderstood principles for many people looking to gain muscle mass.
I play a lot of basketball and row at the gym so I think more Type II muscles since I only do short 1 minute bursts of rowing and a lot of short burst of movement for basketball
wow. very detailed yet simply explained. thanks
My pleasure!
This is an excellent video - clear and concise. Well done!
Thank you, thank you, thank you!!
keep sharing these awesome stuff ! ❤
Good shit man..
Awesome video!
good job fam, your helping me understand my anatomy classes a bit more
+Noel Gonzalez Keep it up!
Thank you very much ! I love the presentation !
any way that we can determine how much we have geneticly?
I am overweight but i have a really good sprint does that mean i have a fast twitch?
valentin ion yeah
Youre probably endomorph with these rare genetics.
These are great. Keep them coming.
Great review on muscle fibers
The more I learn about the human body the more I marvel about the astuteness and brilliance of the designer behind it, whether it’s God or Nature!
what a great channel! very informative and easy to understand! keep it up!
Thanks!
I train my type IIx fiber for sprintng
your channel is really informative and useful,thanks a lot.
Thanks!
excellent video !
very useful, thank you for sharing.
I was having a hard time understanding this whole thing! now I get it! thank you
this is literally how i understand the difference between the fiber types
I loved this video
Thanks!
your welcome! :)
your video is really helpful. Very easy to understand! Thank you so much
My pleasure!
Type II x only if i am honest there.
We had to learn this in our Dojo when visiting a seminar.
Does your genetic pool determine the actual "fun" you have on those activities?
In case I am the ectomorph bodytype i like moving really fast a lot,
which means i automatically build up more T2x muscle fibers?
Wonderful video
+Ang Jo Thank you! Any other topics you might be interested in seeing in a future video?
Picture Fit You're quite welcome! And sure. Maybe you can do one about "top fitness questions", or anything else about movements in the body. Or anything you want! Whatever you choose, I'll be sure to check out. I subbed! And thanks for responding!
We are looking into utilizing "top" lists in the very near future. Thanks for the input as always and thank you for subscribing! Hope to hear more great ideas from you!
Well done! Really great and easy to understand . Keep it going.
+TheGL1005 Thank you and will do! If you have any other video suggestions, please feel free to share!
pls make a video on which is better to build leg miscles, squat or sprints.. thx
you, my sir, are a god send
Very useful thank you
Since my purpose is to have stamina & strength endurance, I'm training for type I and type IIa mostly, thru exercises such as long distance running 🏃🏻 and sometimes hiking. Now I'm thinking that somehow I have to train for type IIx as well, so that aesthetically, I'd look better while having adequate strength as well
how do you know what kind of muscle fiber you have ?
great videos! great drawings!
I have 1 question. If I only do weight lifting does that mean I will be training only type IIx fibers OR all the different types of fibers based on the Idea that each type of fiber is activated in an order of type I, Type IIa then Type IIx?
I wish you had more videos on anatomy and physiology
Would love to see a video of acceleration
I'm a sprinter and I approve of this message.
This Channel reminds me of asap science.
Its like
Asap Fitness
Thank you very very much
I freaken love this guys videos!
So according to the Henneman's Size Principle I could plan my training targeting first Type 1, then type 2a and finally type 2x fibers for a longer, more comprehensive training?
+Franco Falaschi Most programs cater to training specific fiber types. If you're trying to get stronger and/or bigger, aiming for type 2x fibers should be the goal. Endurance training is best suited with training type I fibers.
You can set a program to target all three muscle fiber types at different times of the training, however, adaptation won't be as efficient as training a specific fiber type or performance type.
I do dragon flags with 20pound or more ankle weights. I do handstand pushups. plus my job requires me to be on my feet all day from 6 am - 4 pm 45 minute walk to home
I play rugby and we have lot of sprints and we have to make powerful tackles so i believe that I train more the type Type IIx.
Holy s*** you're so awesome I wish I wasn't so poor so I can donate to you or something. I appreciate all the videos you put up
any way to find out wich is my dominant type ? ( except the Muscle biopsies )
Really helpful for me tnqu
Hey, I have a twin sister, we're on "different levels" she's good at long distance but I'm only good at sprinting really fast in a short amount of time (which is useful for me in football). But, I find this kinda cool, because she thinks twins are always supposed to be indentical. But how did this happen?
Twins aren’t identical
Probably you have more genetics of your dad and your twin has more genetics of your mum.
Can you do a video on testosterone, I know you've touched on it but could you look at what causes low test levels, how to raise them naturally or supplements that might raise them
Great video :D
thank you so much
Type IIx uses stored glycogen for energy, so what happens with type IIx when you go into ketosis since you have no glycogen stores? I am asking because I am just finishing up a 25 day keto diet, and I find that I am able to sprint and do heavy weights and still have energy. However, at the beginning of my diet, my muscles felt very weak as I slowly built up energy. So did my type IIx start storing ketones? What was the process there?
Your body can synthesize glucose from noncarbohydrate sources (like fat and protein) Look it up! the process it called "gluconeogenesis". That's also how your body keeps its blood sugar levels steady during a low or close-to-no carb diet.
hey thanks!
all these videos are so good thanks. wish there could be subtitle to cause i missed sometimes what u are saying :) but probably it isnt possible cause the images should be on foreground. but just a wish :D
+Fatma Şahin There are definitely subtitles. Turn it on through RUclips's player.
+Fatma Şahin and thank you!
+PictureFit omg i didnt even try it cant believe right know thank u so much awesome 🙆👍👏
So Hypertrophy style lifting (8-12 reps e.g.) will activate Type IIa fibers the most?