Thank you for this informative and different approach. You think outside the box, unlike most. Your videos have definitely helped me understand the concepts behind sprinting a lot better.
This is from the article written by Tom Tellez: "the athlete should try to apply the biggest force in the longest time possible. This will result in a stronger impulse which yields a bigger change in momentum. " Right now I understand his concept through your video!! :-)
+pavel Hykl hmm keep watching the series. The 4th video addresses impulse. Improving top speed requires a quicker impulse, not a bigger impulse. A bigger impulse would apply to acceleration.
Also the closer you bring your foot in after you push off each stride is going to make for less centrifugal torsion on the pelvis which translates into another braking force.
Damn,that’s a good one,thanks Daniel. But I’m in a confusion about roots and consequences of sprint mechanics. You said more breaking force and more backside mechanics are gonna BRING along with them a bigger ground contact time. Whereas our ideal mechanics,no breaking force and little backside mechanics are gonna COME along with shorter ground contact time. Do breaking force influence my ground contact time or does my ground contact time influence my breaking forces. As I understand,more breaking force is gonna increase my ground traveling distance,so it will increase the ground contact time,yeah?
Excellent video but please can you make a video on how to know which mechanics(More Stride length or more Stride frequency)are better for us based on our morphology,height etc...
Hey I love your video and like these kind of videos. But if I increase my squat will that increase force production and will more force production get me faster also do I need to condition that force production to be applied as quickly as possible with plyometrics? Thanks👍🏼👍🏼
increasing force is not always good if you are unable to increase force production. increasing technique proficiency will improve efficiency. add olympic or ballistic movements in your training
Hitting the ground forcefully with zero knee bend is asking for disaster, it is as bad as a ankle strike when landing. Your knee has to bend a little to the most upright point where the impact is absorbed by the muscles instead of the joints.
I don't believe there's a breaking force when landing the foot in front of you, unless you really tries to straighten it to early. Naturally you bend your leg and thereby the body is being pulled forward. And then of course as the center of mass is over your foot the pushing takes over.
there might be a 'braking' force if the foot and the leg do not land properly on the ground, when the foot lands the center of mass of the whole body is behind the landing 'point', what propels it forward the first msecs is not any pulling action, but it is the law of conservation of momentum, actually it is a rotational momentum, the center of mass is rotating around the landing point, therefore if the foot and leg is not positioned properly there will be a force (torque actually) that will decelerate the center of mass
@@andreaskiriakou6520 Thanks for your answer. I both agree and endure. If you put a stiff stick in the ground in front of you when moving forward then certanly you Will experience breaking force. However if the stick is rotten or have a hinge (a knee) there cant be any breaking force. That's how I see it. Also If you take narrow steps you will be well balanced when you start pushing.
Are the speed of the force production and the force itself two different things that need to be trained and improve in order to be faster? Or is it actually the same thing? The bigger the force you are capable of producing the faster you will produce forces in general?
I love how everyone has a strong opionion but no one has bothered to introduce an equation or sugest a free body diagram. Concepts such as torque, resultant forces, impulse momentum is just completely absent from proposed theories. There is a better discusion to be had, one that ideally involves an equation.
Technique and Force Production! A lil bit confused! ABout this... I mean - I do not clearly understand! I am training to jump higher and what I understand is Force Production determines what is your technique should be and as your force production getting faster your technique will automatically (Unconsciously ) change too.. That is why I am not (always) copying others jumping technique because as I understand they produce force different than me ! I just let my body jump the way I feel comfortable and what makes me jump my highest! and every time I change my technique it makes me jump lower! Now it confuses me If it is okay to practice technique even though it makes you slower or jump lower because soon your body will adapt and will make you jump higher!! Please make it clear to me!! thanks Coach!
Hello, I ran on uneven surfaces. When I sprinted, I noticed the slight bump in the ground and almost tripped. (I anticipate the distance unconsciously before I hit the ground) Is this normal and should I find a good even surface?
Reduce ground contact time + Reduce all angular braking force + increase your functional strength training Results = produce more propelling force very quickly
ım speaking about 9.18 time under is about your speed not your tech you can run perfect tech with slower speed than usain just contact time matters kenenisa bekele run perfect or rudisha but they arent that fast
I enjoyed the video but you're in error on a few things . Your foot strike theory is wrong . While it is true that striking down too far ahead is a disadvantage because it causes breaking forces, striking directly under the c.o.g is also a disadvantage. Try walk like that to see what I mean. put your foot directly under your center with each stride you take and see how unbalanced you are at low speed. If you take time to study footage of actual sprinters and don't infer what you believe should happen you'll see that the foot lands just before the center. The breaking force is nullified by the positive acceleration backwards of the leg As far as the knee bend is concerned again there is a happy medium between too much and too little. Too much will definitely slow you down because it absorbs your momentum and has a breaking effect but too little will also slow you down because it decreases the elastic stretch reflex which will cause the muscle to only contact concentricly and thus produce less force . Oh btw the reason Usain is so fast is because he's able to stay on the ground for a longer distance for almost the same time as the other sprinters so no one can out last Usains drive length without losing major turnover speed. I like the technical effort you put in . Keep at it, eventually you'll get there . It took me years to fully understand the sport and I made the biggest progress when I put my arrogant preconceived know it all ideas aside and actually looked to see what is actually happening, tested it and got the results.
You either did not watch the whole video or did not grasp it. There's a reason I said "ideal" mechanics. It's not a literal thing that anyone can actually execute, but a direction that people move as they become faster. Regarding your comment about walking, we definitely do not want to sprint the same way we walk. That is a horrible argument.
Jump Science So if it's ideal it means that we should do it and doing so will make us run faster . Have you ever thought of the reason no one can actually do it ? The answer is because it's impossible. Therefore it can't be ideal because physics doesn't allow it to be done . This means this school of thought is wrong. The walking example shows why it can't work at high speed. I used walking because it's safer but you'll get the exact same result when running with a tumble maybe. How can something that can't be done be ideal ? Try sprinting with your contact behind your center. You can't! Why because it's wrong and is not permitted by the laws of physics. In the same way you can't land directly under your center of gravity. You HAVE TO land before it . Too far is bad but there is a sweet spot which is "ideal" .
Angelos I guess you’re just not familiar with what it means to put quotation marks around a word. It implies that we’re calling it that but don’t mean it literally. It’s like a theoretical yield in chemistry. Better lab practices get you closer and closer, but you can’t actually get there. As sprinters get faster, they get closer to “ideal” mechanics. There is no theoretical reason a sprinter cannot contact directly under the COM
Jump Science Actually there is . The reason a sprinter can't is the same reason he can't place the foot behind the COM . It's the same reason a swimmer can't do it . If you try walking like that you can clearly feel why it would be impossible at high sprinting speeds . You have no backward pull or as I call it traction. You also significantly decrease your drive length which will negatively affect your speed since your speed is Drive length/drive time . It's impossible and trying to attain it will only slow you down.
@@JumpScience22 that's true, i will finish degree this summer but it's only good for employment. Some jew tubers know way more than me and more xp than me
Thank you for this informative and different approach. You think outside the box, unlike most. Your videos have definitely helped me understand the concepts behind sprinting a lot better.
This is from the article written by Tom Tellez: "the athlete should try to apply the biggest force in the longest time possible. This will result in a stronger impulse which yields a bigger change in momentum. " Right now I understand his concept through your video!! :-)
+pavel Hykl hmm keep watching the series. The 4th video addresses impulse. Improving top speed requires a quicker impulse, not a bigger impulse. A bigger impulse would apply to acceleration.
oh yes.. I see !! thanx :-)
+Jump Science But.. can you explain me what Tom Tellez meant with his statement?
pavel Hykl I would have to see it in context
willamettestriders.com/Tellez%20Sprinting.pdf
Also the closer you bring your foot in after you push off each stride is going to make for less centrifugal torsion on the pelvis which translates into another braking force.
Excessive knee bend is lack of quad strength.
Damn,that’s a good one,thanks Daniel. But I’m in a confusion about roots and consequences of sprint mechanics. You said more breaking force and more backside mechanics are gonna BRING along with them a bigger ground contact time. Whereas our ideal mechanics,no breaking force and little backside mechanics are gonna COME along with shorter ground contact time. Do breaking force influence my ground contact time or does my ground contact time influence my breaking forces. As I understand,more breaking force is gonna increase my ground traveling distance,so it will increase the ground contact time,yeah?
yeah, it's like chicken or egg, right? I think it all starts with how much contact time you require.
Would Anterior Pelvic Tilt make you a slow runner in football? What kind of training would you suggest to help me become a faster football player?
+sojiroT squatting perfectly and running track. Anterior tilt is not good, but there are plenty of people who are fast in spite of it.
Excellent video but please can you make a video on how to know which mechanics(More Stride length or more Stride frequency)are better for us based on our morphology,height etc...
Hey I love your video and like these kind of videos. But if I increase my squat will that increase force production and will more force production get me faster also do I need to condition that force production to be applied as quickly as possible with plyometrics? Thanks👍🏼👍🏼
see speed science 7
increasing force is not always good if you are unable to increase force production. increasing technique proficiency will improve efficiency. add olympic or ballistic movements in your training
Hitting the ground forcefully with zero knee bend is asking for disaster, it is as bad as a ankle strike when landing. Your knee has to bend a little to the most upright point where the impact is absorbed by the muscles instead of the joints.
did he say zero knee bend? Stiff leg is not knee locked out.
very interesting.. does this concept apply to distance running as well?
Do these concept apply for running techniques involved in distance running
Yes. The movements are just less dramatic at lower speed.
how develop more force vertically
I don't believe there's a breaking force when landing the foot in front of you, unless you really tries to straighten it to early. Naturally you bend your leg and thereby the body is being pulled forward. And then of course as the center of mass is over your foot the pushing takes over.
there might be a 'braking' force if the foot and the leg do not land properly on the ground, when the foot lands the center of mass of the whole body is behind the landing 'point', what propels it forward the first msecs is not any pulling action, but it is the law of conservation of momentum, actually it is a rotational momentum, the center of mass is rotating around the landing point, therefore if the foot and leg is not positioned properly there will be a force (torque actually) that will decelerate the center of mass
@@andreaskiriakou6520 Thanks for your answer. I both agree and endure. If you put a stiff stick in the ground in front of you when moving forward then certanly you Will experience breaking force. However if the stick is rotten or have a hinge (a knee) there cant be any breaking force. That's how I see it. Also If you take narrow steps you will be well balanced when you start pushing.
Are the speed of the force production and the force itself two different things that need to be trained and improve in order to be faster? Or is it actually the same thing?
The bigger the force you are capable of producing the faster you will produce forces in general?
Is not the same, but depending on your lvl you can improve both doing only one thing
how do you get the leg to stiffen instead of sinking to much
+Jordyn Bunnell like I said, it's a matter of muscular force production. So sprint a lot and get stronger.
Very insightful. Thanks bro
I love how everyone has a strong opionion but no one has bothered to introduce an equation or sugest a free body diagram. Concepts such as torque, resultant forces, impulse momentum is just completely absent from proposed theories. There is a better discusion to be had, one that ideally involves an equation.
Technique and Force Production!
A lil bit confused! ABout this...
I mean - I do not clearly understand!
I am training to jump higher and what I understand is Force Production determines what is your technique should be and as your force production getting faster your technique will automatically (Unconsciously ) change too..
That is why I am not (always) copying others jumping technique because as I understand they produce force different than me !
I just let my body jump the way I feel comfortable and what makes me jump my highest!
and every time I change my technique it makes me jump lower!
Now it confuses me If it is okay to practice technique even though it makes you slower or jump lower because soon your body will adapt and will make you jump higher!!
Please make it clear to me!! thanks Coach!
Generally I would say practicing technique at slower speed is just for sprinting. If you want to jump, just jump.
THANKS COACH! so Its ok to not to practice jumping technique and let my body change as my force production becomes faster?
yes, IMO
Thanks a lot Coach!! IMO?
Hello, I ran on uneven surfaces. When I sprinted, I noticed the slight bump in the ground and almost tripped. (I anticipate the distance unconsciously before I hit the ground) Is this normal and should I find a good even surface?
Yes and yes.
body angle in your sketch must be almost same as upper leg angle
How do you increase force production?
Build a strong and powerful/explosive lower body.
Reduce ground contact time + Reduce all angular braking force + increase your functional strength training
Results = produce more propelling force very quickly
Push pull strike knowing the best way to push pull and strike you push to get moving you pull to get speed you strike the ground for distance
ım speaking about 9.18 time under is about your speed not your tech you can run perfect tech with slower speed than usain just contact time matters kenenisa bekele run perfect or rudisha but they arent that fast
2:40 I disagree with that...
well I guess we disagree then
Jump Science you don't care about anyone else's opinion but yours? Not even gonna ask me why I disagree?...how close-minded people are these days
haha I was curious why you didn't share more in your first comment. I'm happy to hear it
ı also disagree but its about contact time and braking force anybody can run with his force production with same knee bend
Interesting 🤔
I enjoyed the video but you're in error on a few things . Your foot strike theory is wrong . While it is true that striking down too far ahead is a disadvantage because it causes breaking forces, striking directly under the c.o.g is also a disadvantage. Try walk like that to see what I mean. put your foot directly under your center with each stride you take and see how unbalanced you are at low speed.
If you take time to study footage of actual sprinters and don't infer what you believe should happen you'll see that the foot lands just before the center. The breaking force is nullified by the positive acceleration backwards of the leg
As far as the knee bend is concerned again there is a happy medium between too much and too little. Too much will definitely slow you down because it absorbs your momentum and has a breaking effect but too little will also slow you down because it decreases the elastic stretch reflex which will cause the muscle to only contact concentricly and thus produce less force .
Oh btw the reason Usain is so fast is because he's able to stay on the ground for a longer distance for almost the same time as the other sprinters so no one can out last Usains drive length without losing major turnover speed.
I like the technical effort you put in . Keep at it, eventually you'll get there . It took me years to fully understand the sport and I made the biggest progress when I put my arrogant preconceived know it all ideas aside and actually looked to see what is actually happening, tested it and got the results.
You either did not watch the whole video or did not grasp it. There's a reason I said "ideal" mechanics. It's not a literal thing that anyone can actually execute, but a direction that people move as they become faster.
Regarding your comment about walking, we definitely do not want to sprint the same way we walk. That is a horrible argument.
Jump Science So if it's ideal it means that we should do it and doing so will make us run faster . Have you ever thought of the reason no one can actually do it ?
The answer is because it's impossible. Therefore it can't be ideal because physics doesn't allow it to be done . This means this school of thought is wrong.
The walking example shows why it can't work at high speed. I used walking because it's safer but you'll get the exact same result when running with a tumble maybe. How can something that can't be done be ideal ? Try sprinting with your contact behind your center. You can't! Why because it's wrong and is not permitted by the laws of physics. In the same way you can't land directly under your center of gravity. You HAVE TO land before it . Too far is bad but there is a sweet spot which is "ideal" .
Angelos I guess you’re just not familiar with what it means to put quotation marks around a word. It implies that we’re calling it that but don’t mean it literally.
It’s like a theoretical yield in chemistry. Better lab practices get you closer and closer, but you can’t actually get there. As sprinters get faster, they get closer to “ideal” mechanics. There is no theoretical reason a sprinter cannot contact directly under the COM
Jump Science Actually there is . The reason a sprinter can't is the same reason he can't place the foot behind the COM . It's the same reason a swimmer can't do it . If you try walking like that you can clearly feel why it would be impossible at high sprinting speeds . You have no backward pull or as I call it traction. You also significantly decrease your drive length which will negatively affect your speed since your speed is Drive length/drive time .
It's impossible and trying to attain it will only slow you down.
There shouldn't be a backward pull on the ground
The force is strong with usain bolt..
The smell is even stronger, by all accounts!
This isn't science. Nobody has ever determined what constitutes correct sprint mechanics and it can't be inferred from simple joint angles.
Did you even watch the video?
Yes it is... It's biomechanics.
everyone here has a opinion and not one degree in kinese or exercise phs.
Degrees are pretty meaningless in my opinion. And I have one haha. People can get degrees without understanding anything
@@JumpScience22 that's true, i will finish degree this summer but it's only good for employment. Some jew tubers know way more than me and more xp than me
3DHDcat your boss will see this in 2 years
Doesn't seem as professional as I'd hope.