I hope you guys enjoy the video and take away some new strategies for maximizing the development of your quads! After producing a good deal of vlog-style content, I was itching to do a science-explained edit again and I've got another (slightly off-topic) one on the way next week! Anyway, all the scientific references organized by order of appearance and topic can be found in the description box for your own reading. Please share this video with anyone you think may find it helpful, or who hasn't found my channel yet. Thanks again guys for the continued support! Peace!
Nice vod as usuall but I would like to know more about how to hit all 4 muscle heads.. in terms of "isolating" or with a better word focusing on one head at a time when it comes to legpress for instance. Will a wide stans focus more on the outer head etc
The quality is once again just suberb 👌 I'd love to see science explained about cardio for bodybuilders/weight/powerlifters, it's impact on the bb itself, recovery and over all vascular health benefits. And personally differences on cardio training, may it be nordic walking, running, cycling or rowing. A "taaaaall order", I know, but you could consider it as a challenge. :)
I used to think "skip leg day" was simply a joke. Like last week or week before i saw this dude at the gym, he had a pretty jacked upper body, then tiny little chicken legs. Like imagine the upper body of an intermediate lifter on the lower body of a guy who sits in starbucks all day on his macbook working on his screenplay.
@@artvandelay2111 First let me ask YOU a question; how do you move to the squat rack for your barbell curls after you finish with the tricep rope push down? You walk over there, of course. Walking is a leg workout, especially if your upper body is jacked and your legs have to move all that mass!
Wow! You really did your homework. I think that understanding how muscle works with supporting studies makes more sense than when people just show you the exercises with no explanation.
Squat depth is important. If you can’t squat deep ( a reasonable depth or at least slightly below parallel) it is worth spending some time trying out different stance width, foot position, spending time doing mobility drills, stretches to open up your hips and most over looked one - improving your ankle mobility. Squat University has amazing content on the topic
I love this channel, it's just pure science and not the usual nonsense we see from fitness people. You don't try and dumb things down, you treat your audience as intelligent people and then provide some straightforward diagrams to explain the papers you cite. It's the sort of thing I have to do when presenting my research to an audience of very smart people who don't work in my particular area. Without a doubt this is the best fitness channel on youtube.
Regarding squat width, yes, quad activation is the same in narrow and wide squats, but glute activation is different. Meaning you can get a better quad workout with narrow squats than with wide squats using the same weight - do to the lesser involvement of the glutes. Also it's the same with squat depth, there is more glute activation in deeper squats, so if one wants to target the quads, it's best to stop at parallel and not go deeper.
What I noticed with squats is the most important thing is to have the load light enough that you can do slow controlled reps with full ROM and go for the burn. From there, once you activate a solid quad burn you can start raising the tempo with faster reps to get the burn going harder. From there the endorphins and damage are enough that the once light load is heavy feeling and what you could do for 25 reps 15 minutes ago you can now only get 8-10 reps.
Tempo doesn't actually matter, as long as you're going close to failure, which you have to if you want to gain muscle. Just do a controlled eccentric. But yeah it's a good training technique. Change equals adaptation
I can't thank you enough for this highly informative upload! I had several questions concerning my overall quad development and knee vulnerability during leg extensions and you hit the nail on the head. I'm subscribing and eagerly awaiting future content as fitness is now my favored and most practiced hobby and passion. Again, thanks man!
GREAT STUFF. Best in the biz. The balance of making a comprehensive, encyclopedic-style video, with no BS, AND under 10 minutes, is hard to do, but you strike that balance week in-week out. Keep up the good work!
Thank you so much for everything you do Jeff. I’m so glad you actually use scientific evidence to back up what your saying and it really helps to think about these factors when training. Also I agree that leg extensions can make your knees healthier since I had such bad knee pain for about 6 months, even just moving my leg slightly caused so much pain. As a result I cut out leg extensions completely since they are “bad for your knees”. Then about two months ago I decided hey it’s time to get this sorted, so I worked on my squat form and focused on strengthening it and did 4-6 sets of leg extensions twice a week. As a result in 3-4 weeks my knee pain was completely gone so now I can train legs pain free, except for the fact that my legs are such a lagging body part which hurts to know. Thanks for this video Jeff I’m going to start incorporating your quad and calf tips into my training.
I really really appreciate all the science explained videos! I've been going through all my favorite ones and taking in depth notes on all of them. You're a huge help to me and I know a ton of other people feel the same way. Sorry that TH-cam craps on videos sometimes. I made sure to rewatch til the very end, leave a thumbs up and this comment lol. Anyways, thanks a lot. You've taught me so much in the past 6 months or so!
I love videos like these where the host scientifically proves the credibility of an exercise. Unlike the other random videos with no single proof. Keep up the good work!
Laura Taylor - bitches making eternal excuses ( both guys and girls ) .......like he said anything new or showed any new exercises that any normal fitness enthusiast doesnt know .......!!! Just shut up and workout. I bet you still didn't do a good workout even after watching this vid.
To sum up his conclusions, basically: Step Ups for warm up and a good finisher, Front Squats should be your main focus, and Leg Extensions are indeed a useful finisher.
In 2022, I just gotta say Jeff, I love you man! One of the handful of guys that have really helped empower and ensure me on the best path forward! I've been watching you for about 6 months now, and my quads thank you!!!
Instant sub, my wife and I were actually talking about if we should squat anymore because she had read some blog that said that it was unnecessary. Not only did this drive my point that we are doing squats but you have also given me new information that will fuel my leg days. Nice quads man!
Have you heard of Lombard's Paradox? It demonstrates (in a very small nutshell) that glutes can act as a knee extensor, and that quads can act as hip extensors, all due to their nature as biarticular muscles. Greg Nuckols wrote an article about this called "Squats are not hip dominant or knee dominant. Some biomechanical black magic". He links a study called "A biomechancel comparison of back and front squats in healthy trained individuals" which demonstrated that there was no significant difference in muscle activation between front and back squats. Just wanted to introduce contradicting evidence that increased torque on a joint may not necessarily entail greater muscle activation of the muscle typically associated with that joint.
I believe squats are a great leg exercise, but I will always find the leg press to be an even better leg exercise because you can push yourself so much farther in the leg press with out having the chance of falling over/ passing out.
New video? Yes, maam! I recently injured my left quad and made that little bastard numb, (no, for real! I think I've pinched a nerve or something) so this is making me want to hit the gym and work on my quads even more.. ARGH! DDDD:< Thanks for the super informative video though!
DP Fitness I'm sure you are jut trying to be helpful, but you shouldn't just make blanket-statements suggesting that stretching will help. Stretching could very well make the issue worse (seeing as you have no idea what is causing her numbness). She could have an issue with a intervertebral disc in her lower back; one that is compressing a nerve going down to supply the affected area. OR she could have dropped something on her leg (i.e. a crush injury) and that is causing direct damage or swelling to agitate the nerves. From what she wrote, I doubt that either are the case, but it just illustrates my point. There could be any number of things that are causing her numbness, so you shouldn't make an assumption that some muscle tightness is the culprit. So again: you have no idea how she injured herself, what she injured specifically, or what the extent of the injury could be. Please don't just tell someone that something will help them when you are essentially just taking a shot in the dark. You could be doing more harm than good. The part about seeing a Physio is sound though. That's smart, so I'll give you credit there.
kyle k dude a twice your body weight squat, although is not common, it isn’t hard to achieve. What it is hard to believe is that the kid has been lifting for only a year, I would have to look at that depth lol
Manuel Ubillus I hit 395 pounds on the squat at 145 pounds with 3 month of training, pure genetics I’m built for squatting and deadlifting. I’m 170 now 18 years old and my max squat was 525 pounds and max deadlift 590. I currently don’t do either of those exercises but variations of them.
I do know it's pretty easy to achieve for males. I was just curious, that's all. Squat numbers, where they are, how long they've taken to get there. And, I'm not a kid. 30 years old. Always hitting below parallel. None of that half squat BS.
Bharath Rao he said for athletes or people that will be performing explosive movements because it puts stress on the ligaments in the knee So if you’re just bodybuilding and don’t play sports or perform cutting movements you will be perfectly fkne
WHY CAN'T ALL EXERCISE VIDEOS BE LIKE THIS. THANK YOU FOR YOUR COMMITMENT TO ACEDEMIC RESEARCH TO BACK UP YOUR PHYSICAL TRAINING PRACTISE. 10 out of 10. Subscribed.
I think it is important to stress the squat only works 3 of the 4 quads. The rectus femoris is not activated during squats because, as Jeff points out, the rectus femoris is a biarticular muscle. It is a hip flexor as well as an extensor of the knee. Squats involve hip extension and, as a result, there is central inhibition of hip flexors, including the rectus femoris, during squats. Decades ago, my colleagues and I confirmed this with immediate postexercise MRI, using fluid-sensitive sequences. So while leg extensions activate all 4 quads, not so with squats which, by necessity, involve central reciprocal inhibition of rectus femoris activation.
I don't even think you can begin to imagine how a large amount of your followers appreciate these science explain videos. I've seen attempts at other youtubers trying to do what you do, but the original will always be the original. We understand you must post a variety of content on here but please do not ever forsake your followers and stop posting these science explain videos. All the best!
Incredible video man. Understood some of this already, but the amount that you covered that I didn’t even know, or questioned with theories but no proof, is astounding. Great video, like many others you have. Debunked many debates about these muscles and how to properly train
In Muscle Meets Magnet (out of print now and rare) they found that Sissy Squats activated all quad muscles to their maximum. This was confirmed by MRI tests done in the early 90s in Sweden.
I hope you guys enjoy the video and take away some new strategies for maximizing the development of your quads! After producing a good deal of vlog-style content, I was itching to do a science-explained edit again and I've got another (slightly off-topic) one on the way next week! Anyway, all the scientific references organized by order of appearance and topic can be found in the description box for your own reading. Please share this video with anyone you think may find it helpful, or who hasn't found my channel yet. Thanks again guys for the continued support! Peace!
Nice vod as usuall but I would like to know more about how to hit all 4 muscle heads.. in terms of "isolating" or with a better word focusing on one head at a time when it comes to legpress for instance. Will a wide stans focus more on the outer head etc
opinion on the zercher squat
Your edits & the smooth flow of info 🙌🏼👍🏼
Jeff Nippard on the Bulgarian split squat, are you trying to work on the back leg or the front leg?
The quality is once again just suberb 👌
I'd love to see science explained about cardio for bodybuilders/weight/powerlifters, it's impact on the bb itself, recovery and over all vascular health benefits. And personally differences on cardio training, may it be nordic walking, running, cycling or rowing.
A "taaaaall order", I know, but you could consider it as a challenge. :)
Featured exercises:
Front squat
Back squat
Leg press (wide/narrow stances)
Leg extensions
My hero
huge actman hahaha np
Lunges and step ups!!!
What about bench press?
İf we do thwse exercises we hit all heads am ı right
Quad science = 50K views Arm + Chest science = 1M views ...Makes sense
No u.
Quad science 1M views now 😂
I used to think "skip leg day" was simply a joke. Like last week or week before i saw this dude at the gym, he had a pretty jacked upper body, then tiny little chicken legs. Like imagine the upper body of an intermediate lifter on the lower body of a guy who sits in starbucks all day on his macbook working on his screenplay.
No quads = less broads
Quad is Latin for useless
I get excited every time I see Jeff has uploaded a Science Explained video 🙌🏼
happy to hear it brother! by the way, when are we gonna hit another workout?
who doesnt?
Soooon!
pause
thats because Science is Jeffs middle name -we are all the better for it !
Love this video actually quotes his sources and scientific evidence rather than saying *“ studies show”*
New sub
Being almost a thesis student i love the fact that you incorporate scientific studies to your explanations. It's real proof. Not bs explanations
Calm down
love the dom mazzeti part in the beginning
Being the biggest dude in the world without doing legs isn't a bit countetproductive to show him?
Gili Briggs *gunshots*
Legend
Super Set
Bench
Deadlift
Squat ... fuck it Skip
Epic Dom!
@@jules6856 I could hear this comment
Today was my annual leg day and was planning to skip it, but now watching your video I might just go and train them legzzzz
Prayuj Pillai hehe annual
Lol
😂😂
Annual...
Funny guy
Clear, concise, well researched, informative and very nicely edited. Great quality content.
As a sports-performance Ph.D. student, I am extremely impressed with your videos.
Skipping legs is not a meme it’s a lifestyle and science
cant spell LEGenDArY without LEG DAY
So that means one day I'm gonna be ENR
It's gonna be En wait for it r. Enr!
“You can do arm day without using your legs, but you can’t do leg day without using your arms”
- Dom Mazetti
@@soonerborn7603 Can you build legs without doing leg day ?? ....... Please say yes.
Asking for a friend 😃
@@artvandelay2111 First let me ask YOU a question; how do you move to the squat rack for your barbell curls after you finish with the tricep rope push down? You walk over there, of course. Walking is a leg workout, especially if your upper body is jacked and your legs have to move all that mass!
@@soonerborn7603 Sooooooo ....... you're saying I can miss leg day ???
Divide Into Parts Rather Than A Leg Science Explained Is Really Amazing! Look Forward For More Of These.
I hate when people squat in the curl rack.
lol
Lol
Lol
lol
lol
Editing is top notch as always.
Wow! You really did your homework. I think that understanding how muscle works with supporting studies makes more sense than when people just show you the exercises with no explanation.
I genuinely get excited when I see an upload from Jeff. Amazing work as always
Squat depth is important. If you can’t squat deep ( a reasonable depth or at least slightly below parallel) it is worth spending some time trying out different stance width, foot position, spending time doing mobility drills, stretches to open up your hips and most over looked one - improving your ankle mobility. Squat University has amazing content on the topic
I love this channel, it's just pure science and not the usual nonsense we see from fitness people. You don't try and dumb things down, you treat your audience as intelligent people and then provide some straightforward diagrams to explain the papers you cite. It's the sort of thing I have to do when presenting my research to an audience of very smart people who don't work in my particular area.
Without a doubt this is the best fitness channel on youtube.
We should call this cat “the professor” damn he’s good, felt like I was in my nursing school A&P class again. Excellent video
"Are waiting to be built"~ bruh that shit got me hype af
@kappelmeister123 You mention having a good brain; however, you then make the claim that you can build neurons😂
@kappelmeister123 rip
kappelmeister123 oh stfu
im 50 years old & iv been training for 9 months , & i like your way & training vids thanks
Just coming here to tell everyone to have a great day!!!
And to hope people view your channel
DR vids exactly
Regarding squat width, yes, quad activation is the same in narrow and wide squats, but glute activation is different. Meaning you can get a better quad workout with narrow squats than with wide squats using the same weight - do to the lesser involvement of the glutes. Also it's the same with squat depth, there is more glute activation in deeper squats, so if one wants to target the quads, it's best to stop at parallel and not go deeper.
You're wrong. The quads get activated more at depth as well. Don't spread bullshit.
fool, he in the video cites that quad activation is the same.
Awesome video man. Now get some rest because I know you never stop grinding for these videos 😁
Danny_Getsfit lol thanks man. It’s nap time!
What a beg
You guys should meet up
you're an inspiration to all short guys out there, trying to be better physically. respect!!
My cousin and I based in London always get excited when you post vids. Love from England!!
Best one yet... I never would have thought step-ups would have an impact on the outer sweep.
CRUSHHHEDDD ITTTTT. Man do I love a good quad.
I love to eat a good quad.
i have my anatomy lab final tomorrow and it covers muscles, i randomly clicked on this video and got a little study session in lol love it!!
Id love to squat but i keep injuring myself *outside the gym* washing my hands, cleaning, sleeping or turning in bed
Patrick Bateman wtf is this comment? You injure yourself washing your hands?
Branden Aebersold Me too. Don't be a bich.
Same bro
Serena Martinez I never wash my hands
What I noticed with squats is the most important thing is to have the load light enough that you can do slow controlled reps with full ROM and go for the burn. From there, once you activate a solid quad burn you can start raising the tempo with faster reps to get the burn going harder. From there the endorphins and damage are enough that the once light load is heavy feeling and what you could do for 25 reps 15 minutes ago you can now only get 8-10 reps.
Tempo doesn't actually matter, as long as you're going close to failure, which you have to if you want to gain muscle. Just do a controlled eccentric. But yeah it's a good training technique. Change equals adaptation
I can't thank you enough for this highly informative upload! I had several questions concerning my overall quad development and knee vulnerability during leg extensions and you hit the nail on the head. I'm subscribing and eagerly awaiting future content as fitness is now my favored and most practiced hobby and passion. Again, thanks man!
oh my God....i love your videos...lots of informations and zero redundance...one of the best science based athletes
GREAT STUFF. Best in the biz. The balance of making a comprehensive, encyclopedic-style video, with no BS, AND under 10 minutes, is hard to do, but you strike that balance week in-week out. Keep up the good work!
Jeff is one of the realest on TH-cam
Thank you so much for everything you do Jeff. I’m so glad you actually use scientific evidence to back up what your saying and it really helps to think about these factors when training. Also I agree that leg extensions can make your knees healthier since I had such bad knee pain for about 6 months, even just moving my leg slightly caused so much pain. As a result I cut out leg extensions completely since they are “bad for your knees”. Then about two months ago I decided hey it’s time to get this sorted, so I worked on my squat form and focused on strengthening it and did 4-6 sets of leg extensions twice a week. As a result in 3-4 weeks my knee pain was completely gone so now I can train legs pain free, except for the fact that my legs are such a lagging body part which hurts to know. Thanks for this video Jeff I’m going to start incorporating your quad and calf tips into my training.
I really really appreciate all the science explained videos! I've been going through all my favorite ones and taking in depth notes on all of them. You're a huge help to me and I know a ton of other people feel the same way.
Sorry that TH-cam craps on videos sometimes. I made sure to rewatch til the very end, leave a thumbs up and this comment lol. Anyways, thanks a lot. You've taught me so much in the past 6 months or so!
I noticed that you are scrolling through the comment section. Please focus on the video instead. Jeff put alot of effort into this.
I love videos like these where the host scientifically proves the credibility of an exercise. Unlike the other random videos with no single proof. Keep up the good work!
Always fun to get a notification about a new Jeff nippard videoo
Good to hear this from someone that actually has big quads , unlike other users i see in youtube
Yesssss I was just looking for something like this. My quads are a pain to grow.
Laura Taylor - bitches making eternal excuses ( both guys and girls ) .......like he said anything new or showed any new exercises that any normal fitness enthusiast doesnt know .......!!! Just shut up and workout. I bet you still didn't do a good workout even after watching this vid.
I suggest water mixed with miracle grow, does wonders.
Primary oh shut up. i bet your legs are twigs
@@ftngie L
@@ftngie HAHAHAHAHA we all approve this comment.
These have to be the best science fitness videos.
Never clicked on a video so fast
Kevin Officer-Combs Lol same here
Hands down, best video on this topic on TH-cam
THANK YOU JEFF
Is he the same Jeff as athlean x?
@@coows no
I dig that you mentioned turning the feet inward, and outward on that leg extension.
big up on this one bro! loving the new vids you've been putting up
Dusk lol dusk how’s it going man, funny to see you on lifting. How’s your progress? Us mcsg dudes getting jacked
Force lmao what's up dude, just tryna get huge during wrestling season you know
To sum up his conclusions, basically: Step Ups for warm up and a good finisher, Front Squats should be your main focus, and Leg Extensions are indeed a useful finisher.
Quad day is one of my favorites. Although I say that about everyday.... I just love lifting haha
In 2022, I just gotta say Jeff, I love you man! One of the handful of guys that have really helped empower and ensure me on the best path forward! I've been watching you for about 6 months now, and my quads thank you!!!
Thank you soo much Jeff! I hope you realize everyday how much the fitness community appreciates your content.
Refreshing to watch a training video that actually has references to support the information provided!
Great vid dude. Appreciate the time you put into these! Crazy.
Dude even the first 20 seconds of this video motivated me to focus on my quads more
99% will not see this comment but for the 1% have a good day
Why not a year?
@@jonmaszogaming7265be grateful
Just checking in 6y later to let you know I’m having a good day, hope you are still doing good shit
U toooo⚘️
Thanks brother
Instant sub, my wife and I were actually talking about if we should squat anymore because she had read some blog that said that it was unnecessary. Not only did this drive my point that we are doing squats but you have also given me new information that will fuel my leg days. Nice quads man!
12-18 sets weekly
4-8 reps
8-20 reps
2x a week
Have you heard of Lombard's Paradox? It demonstrates (in a very small nutshell) that glutes can act as a knee extensor, and that quads can act as hip extensors, all due to their nature as biarticular muscles. Greg Nuckols wrote an article about this called "Squats are not hip dominant or knee dominant. Some biomechanical black magic". He links a study called "A biomechancel comparison of back and front squats in healthy trained individuals" which demonstrated that there was no significant difference in muscle activation between front and back squats.
Just wanted to introduce contradicting evidence that increased torque on a joint may not necessarily entail greater muscle activation of the muscle typically associated with that joint.
I believe squats are a great leg exercise, but I will always find the leg press to be an even better leg exercise because you can push yourself so much farther in the leg press with out having the chance of falling over/ passing out.
I just started watching your videos and kudos to you. I appreciate you actually citing articles to support your data
great vid jeff ;)
Thank for mentioning the studies done, unlike other people
Juooooooooicy quads bruh
5:31 2x per week. 1 Heavy Day (4-8 reps) and 1 Light Day (8-20 reps).
Cmon buddy check that clip once again ...correct yourself
@@pubgwala519 lol
@@sulezraz now it's perfect ✌️
Good vid.I need big quads.Thanks for the info Jeff.Like
Probably my favorite video so far! Coming back from a knee injury and want to make the most of my leg days.
Very well explained.. simple. Title should be squats for dummies. Lol jk keep up the good work
Jeff you should make a video about low bar and high bar squats and what's more effective. Great work!
Skipping Leg Day Bros checking in
Jack K it's the vernal equinox bro
Peter Hofmann it only happens once a year
Yeah thats what im talking about Jack, you dont even train your legs, you train your fingers in the comment section.
DJ Scottic lol you would puke if you trained legs with me
Old Iron King Alright
I just googled a simple question and found a trove of knowledge in this video...very informative. Im gonna subscribe and smash that like button.
New video? Yes, maam! I recently injured my left quad and made that little bastard numb, (no, for real! I think I've pinched a nerve or something) so this is making me want to hit the gym and work on my quads even more.. ARGH! DDDD:< Thanks for the super informative video though!
pinched a nerve? lol
Now you can foamroll the shit out of that quad without feeling anything!
Give some rest to muscle. It should get better in few weeks. If it doesn't better see a physiotherapist. Stretching will help. :)
DP Fitness I'm sure you are jut trying to be helpful, but you shouldn't just make blanket-statements suggesting that stretching will help. Stretching could very well make the issue worse (seeing as you have no idea what is causing her numbness).
She could have an issue with a intervertebral disc in her lower back; one that is compressing a nerve going down to supply the affected area. OR she could have dropped something on her leg (i.e. a crush injury) and that is causing direct damage or swelling to agitate the nerves. From what she wrote, I doubt that either are the case, but it just illustrates my point. There could be any number of things that are causing her numbness, so you shouldn't make an assumption that some muscle tightness is the culprit.
So again: you have no idea how she injured herself, what she injured specifically, or what the extent of the injury could be. Please don't just tell someone that something will help them when you are essentially just taking a shot in the dark. You could be doing more harm than good.
The part about seeing a Physio is sound though. That's smart, so I'll give you credit there.
I agree with you. That's why I stressed more on taking rest and seeing a physio. Your comment will definitely help her. Thanks.
I just trained legs yesterday but brb training them again Jeff uploaded a science explained video!
Excellent video! What's your current squat max? Mine's 140kg. 75kg BW, 5ft 11. Lifting for around a year.
kyle k dude a twice your body weight squat, although is not common, it isn’t hard to achieve. What it is hard to believe is that the kid has been lifting for only a year, I would have to look at that depth lol
Manuel Ubillus lmao bro it’s pure sarcasm how do you not realize that
Manuel Ubillus I hit 395 pounds on the squat at 145 pounds with 3 month of training, pure genetics I’m built for squatting and deadlifting. I’m 170 now 18 years old and my max squat was 525 pounds and max deadlift 590. I currently don’t do either of those exercises but variations of them.
I do know it's pretty easy to achieve for males. I was just curious, that's all. Squat numbers, where they are, how long they've taken to get there. And, I'm not a kid. 30 years old. Always hitting below parallel. None of that half squat BS.
TheBlooRayChannel Bro it’s a fucking joke lmao chill out
I really liked the Brad part where he "talked" about being allright on the knees the knee extension. Great job as always Jeff!
Definitely not skipping the juice.
turns out guys named jeff are awesome at explaining anatomical stuff... good job!
Jeff Cavaliere says leg extensions is bad. End of discussion.
Bharath Rao he said for athletes or people that will be performing explosive movements because it puts stress on the ligaments in the knee
So if you’re just bodybuilding and don’t play sports or perform cutting movements you will be perfectly fkne
But I don’t do them just for that reason lol
Hunter nope he did not. He said it's bad for everyone who has a knee or two.
Brad Schoenfeld is a lot more qualified than Jeff. Take everything Jeff says with a grain of salt, some of the things he mentions are ridiculous.
kobejg which Jeff are you talking about?
ive never watched a jeff nippard video i ddnt like...keep up the good work
You have nice leg's cause you're hobbit height 😂
A lot of short dude's have nicer leg's than taller dude's like me.
WHY CAN'T ALL EXERCISE VIDEOS BE LIKE THIS. THANK YOU FOR YOUR COMMITMENT TO ACEDEMIC RESEARCH TO BACK UP YOUR PHYSICAL TRAINING PRACTISE. 10 out of 10. Subscribed.
steroids
you just a wuss hahaha
He's Natural
@@karansinghgill1670 no he aint natural my god you stupid if you think he natural
Excellent information. Scientific+Logic . Brilliant
I think it is important to stress the squat only works 3 of the 4 quads. The rectus femoris is not activated during squats because, as Jeff points out, the rectus femoris is a biarticular muscle. It is a hip flexor as well as an extensor of the knee. Squats involve hip extension and, as a result, there is central inhibition of hip flexors, including the rectus femoris, during squats. Decades ago, my colleagues and I confirmed this with immediate postexercise MRI, using fluid-sensitive sequences.
So while leg extensions activate all 4 quads, not so with squats which, by necessity, involve central reciprocal inhibition of rectus femoris activation.
Mate I never comment on vids. However this is possibly the best video on legs/quads etc I have seen. Good job.
Best video I've seen yet I'll be back in 12 weeks
1:45 front squat hit different muscles harder in the quads then back squats Vice versa.
For those interested
Just amazing how you used all types of resources to prove your points keep it up
That quality, that edit, that JEFF
I don't even think you can begin to imagine how a large amount of your followers appreciate these science explain videos. I've seen attempts at other youtubers trying to do what you do, but the original will always be the original. We understand you must post a variety of content on here but please do not ever forsake your followers and stop posting these science explain videos. All the best!
Very cool video. Sipping my coffee before doing legs and this taught me a lot
Incredible video man. Understood some of this already, but the amount that you covered that I didn’t even know, or questioned with theories but no proof, is astounding. Great video, like many others you have. Debunked many debates about these muscles and how to properly train
I can't believe youtube said this wasn't ok for ads! This is quality quad content for the whole family! #youtubedoesntwantyoutomakegains
thats the best video ever on quad science I've seen so far.
the best video for what squat is all about
Video hasn't started yet, but you got my like. I know how you do
In Muscle Meets Magnet (out of print now and rare) they found that Sissy Squats activated all quad muscles to their maximum. This was confirmed by MRI tests done in the early 90s in Sweden.
Probable the best scientifically backed instruction on building quads I’ve ever seen. Thx for the info.
This channel is GOLD!