People tend to overlook Usain Bolt’s power. His power of glutes and hamstrings is possibly the largest ever. Taller people don’t show size. Bolt’s legs are thick and strong as hell. But people, especially non-sprinter tend to consider him as “slender”, which is not true. Your stride length mainly comes from how much force you input to the ground. The “height advantage” is only working when landing, which is minor. Every step is literally like a mini jump. There are many short sprinters produce huge stride length: Mike Rodgers, 5’7, 45strides to cover 100m, Nesta Carter, 5’7, 44.5-45strides to cover 100m. Gatlin, 6’1, 42 strides to cover back in 2004, while Usain, 6’5, 41strides to cover
Underrated comment. I said this many a time. Bolt is the strongest sprinter ever by far. He was heavy and solid. Long muscles. Huge frame. I'd say no 2 is Powell. He didn't maximize his potential or he could have gotten a 9.60 too.
I've been trying to explain this to people that Usain isn't fast bc of his height as they've all been led to believe. The fact is, Usain has incredible power. His ground force is absolutely incredible. If you watch him with all the other sprinters around him, some close to his height too, none of them can match his power. Also, his form is excellent. You are 100% correct when you say that he is literally mini jumping off the ground propelling his body forward. But those mini jumps are bc of his incredible powerful explosive forces into the ground that springing his body forward across the track, extremely fast. It has nothing to do with his height. Look up Andre Cason, who was listed as 5'7", but his coach Loren Seagrave said he was more like 5'4"- 5'5" & his best legal time was 9.92 & ran I believe a 9.78 windaided. He looked like he was bounding as he ran, & his legs were extremely powerful. Andre was a beautiful sprinter. His form was excellent like Usain. Sprinting is a skill that requires tremendous power & technique. One day, sooner than you think, a man much shorter than Usain will break both his world records. Shit, Yohan Blake should have broken his 200 meter record had he had a better start with his 19.26. Yohan in fact ran faster than Usain has ever ran in that particular race as far as miles per hour. It was his damn start that messed him up as far as time. Yohan is 5'11".Anyway, thank you anunchuckfan, you nailed why Usain Bolt was so much faster than everyone else.
Elite sprinters generate vertical force of five times their body weight, meanwhile Bolt was able to generate vertical force of six times of his bodyweight. Yeah, he was sooo heavy but he still could generate more vertical force *for his bodyweight* than any other sprinter. It’s crazy
Certain people that are only once in a life time. Bolt. Excellent explanation of his mechanics. He is very tall, has scoliosis, runs lateral in his start, his left leg is a half inch longer, he has flat feet, rocks side to side while running, and is still the fastest man ever. This really shows how gifted he is.
Great analysis! Shows you that EVERYONE has strengths and weaknesses, it's just how you capitalize on your strengths and minimize your weaknesses that matter and, Usain Bolt's running success is a great example of this. Thanks for making this video.
nice analysis on the lateral side to side movement. also, I just knew that his left leg is a bit longer that his right. it's amazing how it doesn't stop him from being the fastest man alive...
Hello there. I have a few things that differ from what you said, but it's just my opinion heheh: 1- Start up: Usain bolt is only 2 inches taller than Asafa Powell, so taking just 4 steps instead of 5 isn't because of his height. IMO, it's because of him using the full range of his hip and ribcage mobility. 2- In the middle to the end of the race, the main reason why his stride length is the longest is once again, the full range of hip movement and side to side trunk movement. Not just his height. 3- Scoliosis: I dealt with a similar issue. In fact a lot of people deal with it. This topic would take a long time to discuss, but in most cases, people are miss-diagnosed with Scoliosis. The main reasons for being unbalanced is A) a lack of mobility in one of your hips, B) Having a dominant leg that you overuse even when you're not running, C) Eye dominance, D) not moving your trunk side to side equally. I have to make a video about this topic one of these days. 4- When he broke the record, his form was better than in 2012. In 2012, I can see him arching his back ... also, his arms trail behind him too much.
Usain Bolt doesn't has any biomechanical disadvantages. None! period! His body is ideal for sprinting. Long limbs, long feet, narrow hips, wide shoulders, proximal weight distribution (more mass near the COM). Stride length is always the result of horizontal impulse (force x time) Sprinting fast is just about producing a large relative horizontal impulse frequently enough and nothing else! Forget this people saying high knees, straigth back blabla it doesn't matter! Just horizontal force! Lots of it!
Usain Bolt's start is literally amazing considering his height. at his peak he lead every race from the start, and even has the fastest 0-10 meter split recorded in history
Excellent detailed analysis. Thanks for explaining the impact of the scoliosis on his left leg length and the impact on his form. Thanks for highlighting his persistence, despite the disability
People think that the fastest man EVER doesn't have a perfect techique. The spine is a crucial part of our body for movement because moving it while running, swimming, throwing( ect ect..) helps us generate even more force to use and put into to the ground. Why would we have so many fascial lines and muscels for the rotation and "bending" of our spine then?🤦♂️
I use to be a swim coach and practicing Chiropractor. I had noticed that the best athletes would sometimes have scoliosis. I had this theory in my head that having the scoliosis aloud them to train better or harder. Idk something I noticed.
According to this site, Usain Bolt has the ideal anatomy for an elite sprinter Athletes Foot Usain bolt has a size 13 foot, which is about 27.9 cm. A foot of an elite sprinter generally has a different anatomy than an average person. Sprinters' feet have longer toes than the average foot. Usain’s phalanges are 8.2cm length which provides extra power because the foot can only push you forward when it's actually in contact with the ground. Feet with longer toes stay in contact with the ground for a split second longer on every step. That adds up to a significant amount of extra forward motion in just a few seconds. The achilles tendon acts as a lever as it pulls on the back of the heel to make the foot plantar flex as it pushes off of the ground. Usain has a very long achilles tendon which acts as a powerful spring to store energy and explode off with very little energy expenditure. The achilles tendon acts as a lever, so the longer it is the more leverage it has and the muscles attaching to it have a longer distance to contract for, so they do so more quickly. This increase his ability to accelerate in a shorter distance with fewer strides. Lightning Legs Usain Bolt’s legs are mainly composed of fast-twitch muscle fibres, about 80%, which include a combination of both Fast- Oxidative Glycolytic (FOG) and Fast-Glycolytic (FG) muscle fibres. The combination of these muscle fibre types allows for quick muscle contraction and high force production, which is essential in a short distance sprint. Another advantage bolt has is that his legs are longer, so it takes him less strides to cover the desired distance. Calves The calves comprise two muscles: gastrocnemius and soleus. These muscles are vital to sprinting more than regular running, because the muscles of the calves control foot flexion when running. Sprinters should be prepared to spring off the next foot during each stride before impact to minimize time on the ground. Strong, elastic calves support the additional speed of a sprint. Usain Bolt has a very short gastrocnemius due to his elongated achilles tendon. Despite the muscle’s reduced size, it is still extremely powerful due to both training and its natural makeup of fast-twitch muscle fibres. Quadriceps The quadriceps are the muscles at the front of the thighs, covering the anterior of the femur. The quadricep group is made up of four muscles; rectus femoris, vastus lateralis, vastus intermedius and vastus medialis, that are responsible for knee extension and hip flexion. These muscles raise the leg and propel the runner forward. Muscles throughout your body work in coordinating pairs. One muscle group pulls in one direction and its coordinating muscle group pulls in the opposite direction. The quadriceps work in conjunction with the hamstring as the most important coordinating pair for sprints. The quadriceps pull the legs forward for fast bursts of running. The stronger the quads are, the faster your legs will pull your body forward -- and the faster you'll be able to sprint. Along with Usain’s genetically gifted muscle composition, he also has an elongated patella tendon, particularly the portion that branches to the vastus lateralis. This tendon length, along with his unusually long femur, forms an extremely powerful lever that is able to propel his whole body forward with great force and speed. Hamstrings The hamstring group is made up of three muscles; biceps femoris, semimembranosus and semitendinosus, that run over the posterior aspect of the femur. They are “two-jointed”, which means they cross over both the knee and hip joint, and are responsible for hip extension and knee flexion. The hamstrings are the agonist muscles at the back of the thighs that work with the quadriceps. They pull the leg back so that the sprinter has the force to push off the ground quickly from the calves. Both the quads and hamstrings work at the same time on alternating legs, so sprinting is quickest when each is toned and elastic for speed. The hamstrings are most elastic when the hips and glutes are strong and stabilized. Hips Don’t Lie The hip flexors are a group of muscles that surround the hips and work with the glutes, quads and hamstrings. The muscles that are responsible for flexion of the hip include tensor fasciae latae, sartorius and iliopsoas. The gluteus maximus is responsible for hip extension. Other muscles surrounding the hip control abduction and internal/external rotation and of course there is the hip adductor group These muscles are often overlooked, but are crucial to sprinters, because nimble hip flexors allow your legs to move quickly and in concert with the rest of your body's speed of propulsion. Stretching the hip flexors, in particular, is important to maintaining speed throughout your sprint without injury. Down to the Core The rectus abdominis and the external oblique make up the core. A strong core is essential for sprinters because it is crucial for stability and energy efficiency. Much of Usain’s conditioning is core-centric in order to compensate for weakness due to his scoliosis, curvature of the spine, he’s had since childhood. With the extra work, Bolt is now considered to be one of the most technically stable runners on the track. Upper Body The arms counter-balance the legs, provide uplift and set the running pace. Bolt's technique helps stabilize his torso so that power is efficiently transferred through his hips, which improves his acceleration. runboltrun.weebly.com/the-anatomy-of-bolt.html
Cool video. Very good. I agree with everything you said. I learned how to run by watching Usian Bolts form. You didn't mention anything about the physics principal torque however. I believe that taller runners like Usian Bolt and myself (6'2) benefit from the increased torque that is able to be produced per stride due to the length of their legs being longer. Think of your legs like wheels.
Some people’s body is built to run faster with longer strides than faster step rate . Sometimes if you focus too much on step rate you actually don’t reach your maximum stride length and it slows you down so much.
@@Robzabest25 If you have a coach he can probably explain it better than me. But what I did was that in the practice I would sometimes go for slower step rate so I can control my muscle to have the maximum contraction. And usually that’s the maximum stride length you can have. As for me if I focus too much on step rate I won’t reach my maximum stride length. And I run faster and easier with larger stride length. So I’ve concluded that for my body it likes to have larger strides rather than higher step rate. But again for some people they run faster with higher step rate. It really depends on how their body is built.
I've got a question. Why do sprinters' times vary so much although they always run with a consistent number of strides in a 100m race? i.e Bolt runs every 100m race in 41 strides but his times can vary from sub 9.6 to 10s
It takes quite a bit of effort to reach the maximum speed. In most cases you want to hold back some power. Because it is very easy to injure yourself if you run constantly at your maximum speed.
Very interesting...I thought heel strike was the way to go for speed, so as to minimize the braking movement from ankle flexion... Looks like forefoot strike didn’t prevent him from running this fast...
This might have been his best start ever. Thus, a world record.
5 років тому+3
Some additional moments: - the fastest part of the leg and a most important contributor to speed is the heel. Length and explosivity of heels is one of the most important keys - this is why animals and ostriches are rining faster - because of the mechanics/length of heels and upper legs acting almost only as suspension; - shoulder(compensating) motion upwards as much as Bolt does, may transfer resulting vector of power more backwards, not making mass jumping vertically too much; This analysis requires much more detail. Compensation of rotational momentum of the body is a very good point and very important. And how Bilt hets larger steps with twisting legs, not wasting so much on lifting ankle...that is almost unique.
the opimalmization of body use is so underated to the general audiance, Usain maximumize that so crazily his body doesn't even have that much advantage from other players but he is no.1 for the maximum optimalization he use every fiber of muscles and weight transfer
One thing people always seem to miss with Usain is just how much curve his spine has from a side profile, if you watch carefully you can see how much this acts kind of like a spring and puts his upper body weight in an optimal position leveraging from his hips. This is particularly noticeable in footage of him running without a shirt just how exaggerated that curve is.
I'm just really starting to get into running but it seems like in the starts bolt is kind zig zagging ever so slightly if you know what i mean. is that helping him or no?
2 reasons: You can't lean effectively in the acceleration while bringing the legs up directly in front of you, there's not enough clearance, and the strongest part so best contact of your foot is the ball through the big toe, so you foot pronate outward slightly. You accelerate on skates the same way.
He didn't run 12.19m/s, he ran over 12.4m/s, possibly as high as 12.5m/s based on possible measurement errors (IAAF Biomechanical analysis of sprints:Official report Berlin 2009). He was definitely much faster than anybody else has ever run and he was ahead from virtually the 10m mark. I also saw some data on his maximum ower production out of the blocks. It was ridiculous, almost inhuman. Compared to a Olyoic cyclist producing about max 1000-1500kW, Bolt was around 2800!!!!!😲 I think Bolt's coach did a great job with the scoliosis, his technique as a teenager was terrible, he's bout as good as he could be given his condition really. Nice vid👌👌👍👍
Can I ask something, does angle of the base of the foot effect running mobility or does the speed and the center of mass change and effect the angle of the base of the foot?
Nice work, congrats, at 5:09 which competition it is, and where i can have the video with out traces ? thanks im doing a work on how baseball players Run , thanks again
Some of this analysis is way off.... there are things he is doing that makes himself lighter during exceleration and one small thing he is doing that helps him cut through the air to reduce drag similar to Michael Johnson and you haven't touched on it at all because you're so focused on force.
@@llluuuyyyoooyou can’t do that, only way is to wear tight clothes and have short hair or wear something that doesn’t make your hair fly as well as proper form
@@JimmyKim-fb1ji i didnt say it, someone commented it above us. But if proper form and thin clothing is all what it takes, all sprinters have that, so he meant something else.
the amount of power he produces each stride on his feet and muscles is almost inhuman. I dont remember how to do the physics for the amount of force in that little time on each stride on the average man or woman would be well over enough to send people to hospitals for foot injuries or muscle tears.
why would you look at the time if you are still in the race ? its like asking somebody how long do we still have to wait. time doesnt pass quicker by looking at a clock.
Matimio S they look at the clock when they are right by the finish line and it will make them slower if they look at it not right before they are at the finish line
You should really show your sources from the information you’re putting out here because I don’t think you’re the creator of all this information you might have consolidated it but please name your sources
He is 1.95m tall...that's why he won against that competition. The bigger, the more chances you have to win at such stuff. In order to defeat him, you need to have either way more steps per minute or larger steps than him...and how could you do that if you are 10cm smaller than him? Well, 10cm....isn't even that bad of a difference, you still could produce long steps, but shorter than his....so you need as long steps as you can produce + having more steps per minute than him, with a perfect start and finish. That's a challenge. It's not impossible, but I doubt that there will appear someone who will break his record at 100m in the near future.
Communication is not a sprint. Try speaking more slowly and clearly. I gave up listening because you speak so quickly. The point of communication is to get your message across. The finish line is when your listener understands your message.
If Maurice Greene had better technique he would have the record right now IMO. Also he wouldn't have been plagued with so many injuries that stopped his career at 33. Where as Usain bolt was still able to pursue a football career at the same age. So UB has the records and the longevity there by meaning his technique was greater for sport and life after the fact. He stopped playing football because he could get a contract on a team.
@@GMG7254 maurice green 1,76, usain bolt 1,95, 19 cm different, Muarice green is better between tall/record than bolt. If bolt was training like green, He would make 9.50 or less
@@elijahebbert6884 sure it's great.. but better than UB? not even close. I'm looking at individual records, cycles of injury and competition, and life after track. UB has done much more, his technique helped him win and prevented catastrophic injuries.
@@GMG7254 no doubt but Greene's drive phase is second to only asafa powell, he had the 60m record for almost 20 years too. But obvious bolt had much more longevity and impact.
![Lp. Сердце Вселенной #60 РОЖДЕНИЕ ЛОЛОЛОШКИ [Финал] • Майнкрафт](http://i.ytimg.com/vi/YoR0pAV9FVQ/mqdefault.jpg)
People tend to overlook Usain Bolt’s power. His power of glutes and hamstrings is possibly the largest ever. Taller people don’t show size. Bolt’s legs are thick and strong as hell. But people, especially non-sprinter tend to consider him as “slender”, which is not true. Your stride length mainly comes from how much force you input to the ground. The “height advantage” is only working when landing, which is minor. Every step is literally like a mini jump. There are many short sprinters produce huge stride length: Mike Rodgers, 5’7, 45strides to cover 100m, Nesta Carter, 5’7, 44.5-45strides to cover 100m. Gatlin, 6’1, 42 strides to cover back in 2004, while Usain, 6’5, 41strides to cover
thats why his ass is so great
Underrated comment.
I said this many a time.
Bolt is the strongest sprinter ever by far.
He was heavy and solid.
Long muscles.
Huge frame.
I'd say no 2 is Powell. He didn't maximize his potential or he could have gotten a 9.60 too.
@@conandoyle1740 Powell himself admitted that he should've run sub 9.7 a long time ago.
I've been trying to explain this to people that Usain isn't fast bc of his height as they've all been led to believe. The fact is, Usain has incredible power. His ground force is absolutely incredible. If you watch him with all the other sprinters around him, some close to his height too, none of them can match his power. Also, his form is excellent. You are 100% correct when you say that he is literally mini jumping off the ground propelling his body forward. But those mini jumps are bc of his incredible powerful explosive forces into the ground that springing his body forward across the track, extremely fast. It has nothing to do with his height. Look up Andre Cason, who was listed as 5'7", but his coach Loren Seagrave said he was more like 5'4"- 5'5" & his best legal time was 9.92 & ran I believe a 9.78 windaided. He looked like he was bounding as he ran, & his legs were extremely powerful. Andre was a beautiful sprinter. His form was excellent like Usain. Sprinting is a skill that requires tremendous power & technique. One day, sooner than you think, a man much shorter than Usain will break both his world records. Shit, Yohan Blake should have broken his 200 meter record had he had a better start with his 19.26. Yohan in fact ran faster than Usain has ever ran in that particular race as far as miles per hour. It was his damn start that messed him up as far as time. Yohan is 5'11".Anyway, thank you anunchuckfan, you nailed why Usain Bolt was so much faster than everyone else.
Elite sprinters generate vertical force of five times their body weight, meanwhile Bolt was able to generate vertical force of six times of his bodyweight. Yeah, he was sooo heavy but he still could generate more vertical force *for his bodyweight* than any other sprinter. It’s crazy
Honestly one of the best sports-analytical videos i have ever seen. Good job man, simple yet intelligently explained
Certain people that are only once in a life time. Bolt. Excellent explanation of his mechanics. He is very tall, has scoliosis, runs lateral in his start, his left leg is a half inch longer, he has flat feet, rocks side to side while running, and is still the fastest man ever. This really shows how gifted he is.
This really shows how much effort he made in training.
Flat feet wow i always get shin splints
nothing about gift, all about his intellect and strive
Great analysis! Shows you that EVERYONE has strengths and weaknesses, it's just how you capitalize on your strengths and minimize your weaknesses that matter and, Usain Bolt's running success is a great example of this. Thanks for making this video.
nice analysis on the lateral side to side movement. also, I just knew that his left leg is a bit longer that his right. it's amazing how it doesn't stop him from being the fastest man alive...
I agree!! Hes absolutely amazing
Hello there. I have a few things that differ from what you said, but it's just my opinion heheh:
1- Start up: Usain bolt is only 2 inches taller than Asafa Powell, so taking just 4 steps instead of 5 isn't because of his height. IMO, it's because of him using the full range of his hip and ribcage mobility.
2- In the middle to the end of the race, the main reason why his stride length is the longest is once again, the full range of hip movement and side to side trunk movement. Not just his height.
3- Scoliosis: I dealt with a similar issue. In fact a lot of people deal with it. This topic would take a long time to discuss, but in most cases, people are miss-diagnosed with Scoliosis. The main reasons for being unbalanced is A) a lack of mobility in one of your hips, B) Having a dominant leg that you overuse even when you're not running, C) Eye dominance, D) not moving your trunk side to side equally. I have to make a video about this topic one of these days.
4- When he broke the record, his form was better than in 2012. In 2012, I can see him arching his back ... also, his arms trail behind him too much.
I agree that its not so much stature, but great utilization and mobility of the legs! And again great insight! Thank you my friend 😊
Leg length is the factor!
Usain Bolt doesn't has any biomechanical disadvantages. None! period! His body is ideal for sprinting. Long limbs, long feet, narrow hips, wide shoulders, proximal weight distribution (more mass near the COM).
Stride length is always the result of horizontal impulse (force x time)
Sprinting fast is just about producing a large relative horizontal impulse frequently enough and nothing else! Forget this people saying high knees, straigth back blabla it doesn't matter! Just horizontal force! Lots of it!
Usain Bolt's start is literally amazing considering his height. at his peak he lead every race from the start, and even has the fastest 0-10 meter split recorded in history
Excellent detailed analysis. Thanks for explaining the impact of the scoliosis on his left leg length and the impact on his form. Thanks for highlighting his persistence, despite the disability
Imagine if Usain Bolt didn't have a slight scoliosis, allowing him to have a perfect sprinting technique. He easily could have run below 9.50.
People think that the fastest man EVER doesn't have a perfect techique. The spine is a crucial part of our body for movement because moving it while running, swimming, throwing( ect ect..) helps us generate even more force to use and put into to the ground. Why would we have so many fascial lines and muscels for the rotation and "bending" of our spine then?🤦♂️
@Fire Winner no don't think like that you can become the best with scoliosis,look at Bolt?
I use to be a swim coach and practicing Chiropractor. I had noticed that the best athletes would sometimes have scoliosis. I had this theory in my head that having the scoliosis aloud them to train better or harder. Idk something I noticed.
i think the scoliosis gave him a powerup tbh
@@vitoroma9082 Or they developed scoliosis to suit their technique more 🤷🏻♂️
The hip mobility makes his steps look like he's in the triple jump.
Really good work here man. Great attention to detail.
Bolt’ folding and extending leg tech as well as high keel skills are really amazing and unbelievable for such a tall man
Excellent breakdown. Thanks! I did this with Ben Johnson's race (eventually disqualified) in the 1980s.
Thanks man I have the track meet in a few months and I wanna make my school become first
I wanna be 3rd at lest
According to this site, Usain Bolt has the ideal anatomy for an elite sprinter
Athletes Foot
Usain bolt has a size 13 foot, which is about 27.9 cm.
A foot of an elite sprinter generally has a different anatomy than an average person.
Sprinters' feet have longer toes than the average foot. Usain’s phalanges are 8.2cm length which provides extra power because the foot can only push you forward when it's actually in contact with the ground. Feet with longer toes stay in contact with the ground for a split second longer on every step. That adds up to a significant amount of extra forward motion in just a few seconds.
The achilles tendon acts as a lever as it pulls on the back of the heel to make the foot plantar flex as it pushes off of the ground. Usain has a very long achilles tendon which acts as a powerful spring to store energy and explode off with very little energy expenditure. The achilles tendon acts as a lever, so the longer it is the more leverage it has and the muscles attaching to it have a longer distance to contract for, so they do so more quickly. This increase his ability to accelerate in a shorter distance with fewer strides.
Lightning Legs
Usain Bolt’s legs are mainly composed of fast-twitch muscle fibres, about 80%, which include a combination of both Fast- Oxidative Glycolytic (FOG) and Fast-Glycolytic (FG) muscle fibres. The combination of these muscle fibre types allows for quick muscle contraction and high force production, which is essential in a short distance sprint. Another advantage bolt has is that his legs are longer, so it takes him less strides to cover the desired distance.
Calves
The calves comprise two muscles: gastrocnemius and soleus. These muscles are vital to sprinting more than regular running, because the muscles of the calves control foot flexion when running. Sprinters should be prepared to spring off the next foot during each stride before impact to minimize time on the ground. Strong, elastic calves support the additional speed of a sprint. Usain Bolt has a very short gastrocnemius due to his elongated achilles tendon. Despite the muscle’s reduced size, it is still extremely powerful due to both training and its natural makeup of fast-twitch muscle fibres.
Quadriceps
The quadriceps are the muscles at the front of the thighs, covering the anterior of the femur. The quadricep group is made up of four muscles; rectus femoris, vastus lateralis, vastus intermedius and vastus medialis, that are responsible for knee extension and hip flexion. These muscles raise the leg and propel the runner forward. Muscles throughout your body work in coordinating pairs. One muscle group pulls in one direction and its coordinating muscle group pulls in the opposite direction. The quadriceps work in conjunction with the hamstring as the most important coordinating pair for sprints. The quadriceps pull the legs forward for fast bursts of running. The stronger the quads are, the faster your legs will pull your body forward -- and the faster you'll be able to sprint. Along with Usain’s genetically gifted muscle composition, he also has an elongated patella tendon, particularly the portion that branches to the vastus lateralis. This tendon length, along with his unusually long femur, forms an extremely powerful lever that is able to propel his whole body forward with great force and speed.
Hamstrings
The hamstring group is made up of three muscles; biceps femoris, semimembranosus and semitendinosus, that run over the posterior aspect of the femur. They are “two-jointed”, which means they cross over both the knee and hip joint, and are responsible for hip extension and knee flexion. The hamstrings are the agonist muscles at the back of the thighs that work with the quadriceps. They pull the leg back so that the sprinter has the force to push off the ground quickly from the calves. Both the quads and hamstrings work at the same time on alternating legs, so sprinting is quickest when each is toned and elastic for speed. The hamstrings are most elastic when the hips and glutes are strong and stabilized.
Hips Don’t Lie
The hip flexors are a group of muscles that surround the hips and work with the glutes, quads and hamstrings. The muscles that are responsible for flexion of the hip include tensor fasciae latae, sartorius and iliopsoas. The gluteus maximus is responsible for hip extension. Other muscles surrounding the hip control abduction and internal/external rotation and of course there is the hip adductor group These muscles are often overlooked, but are crucial to sprinters, because nimble hip flexors allow your legs to move quickly and in concert with the rest of your body's speed of propulsion. Stretching the hip flexors, in particular, is important to maintaining speed throughout your sprint without injury.
Down to the Core
The rectus abdominis and the external oblique make up the core. A strong core is essential for sprinters because it is crucial for stability and energy efficiency. Much of Usain’s conditioning is core-centric in order to compensate for weakness due to his scoliosis, curvature of the spine, he’s had since childhood. With the extra work, Bolt is now considered to be one of the most technically stable runners on the track.
Upper Body
The arms counter-balance the legs, provide uplift and set the running pace. Bolt's technique helps stabilize his torso so that power is efficiently transferred through his hips, which improves his acceleration.
runboltrun.weebly.com/the-anatomy-of-bolt.html
Thanks! Very helpful and concise coverage of body sections that are involved in sprinting. Now I must work on ALL of them!
LOL I was just looking for references of ppl running to draw an animation and this is GOLD thanks!
The rotation about the hips is key, you're generating so much energy by loosening the hips up
Cool video. Very good. I agree with everything you said. I learned how to run by watching Usian Bolts form. You didn't mention anything about the physics principal torque however. I believe that taller runners like Usian Bolt and myself (6'2) benefit from the increased torque that is able to be produced per stride due to the length of their legs being longer. Think of your legs like wheels.
damn finally learnt that my knees arn't high enough and i was always focusing on step rate
Some people’s body is built to run faster with longer strides than faster step rate . Sometimes if you focus too much on step rate you actually don’t reach your maximum stride length and it slows you down so much.
@@Karlleagueoflegends how to find maximum stride length
@@Robzabest25 If you have a coach he can probably explain it better than me. But what I did was that in the practice I would sometimes go for slower step rate so I can control my muscle to have the maximum contraction. And usually that’s the maximum stride length you can have. As for me if I focus too much on step rate I won’t reach my maximum stride length. And I run faster and easier with larger stride length. So I’ve concluded that for my body it likes to have larger strides rather than higher step rate. But again for some people they run faster with higher step rate. It really depends on how their body is built.
JP it just keeps getting better..love some of the words and concepts you choose - Brilliant!
Thank you so much!! I really appreciate it!
What software do you use to edit this? I'm currently doing a school project on analysing running using videography. Great video!!
Photoshop
@@bunkwavi xD
@@bunkwavi wait is it actually it?
@@sw3rrvv no
If have the same doubt
I've got a question. Why do sprinters' times vary so much although they always run with a consistent number of strides in a 100m race? i.e Bolt runs every 100m race in 41 strides but his times can vary from sub 9.6 to 10s
Bexause there stride freqyemcy and length varies
It takes quite a bit of effort to reach the maximum speed. In most cases you want to hold back some power. Because it is very easy to injure yourself if you run constantly at your maximum speed.
Exactly!
Here height produce stride length and force applied on ground that makes the difference.
Power output
Very interesting...I thought heel strike was the way to go for speed, so as to minimize the braking movement from ankle flexion... Looks like forefoot strike didn’t prevent him from running this fast...
This might have been his best start ever. Thus, a world record.
Some additional moments:
- the fastest part of the leg and a most important contributor to speed is the heel. Length and explosivity of heels is one of the most important keys - this is why animals and ostriches are rining faster - because of the mechanics/length of heels and upper legs acting almost only as suspension;
- shoulder(compensating) motion upwards as much as Bolt does, may transfer resulting vector of power more backwards, not making mass jumping vertically too much;
This analysis requires much more detail. Compensation of rotational momentum of the body is a very good point and very important. And how Bilt hets larger steps with twisting legs, not wasting so much on lifting ankle...that is almost unique.
the opimalmization of body use is so underated to the general audiance, Usain maximumize that so crazily his body doesn't even have that much advantage from other players but he is no.1 for the maximum optimalization he use every fiber of muscles and weight transfer
New to sprinting and thank you for analysis!. God for my homework
Very nice. TY.
Good analysis
Thank you for the video!! 👍🏾
Thank you for watching!!!!
I CHANGED MY RUNNING TECHNIQUE AND AND I'M NOW 2.7-3.2 SECONDS FASTER ON 100 METERS.
I can get up to 62 mph
I just wanna say thank you.
heel barely touches the ground, so it means there's still a possibility of touching the ground during sprinting?
His stride frequency is the slowest I have ever seen for an elite sprint athlete. The real story is his enormous stride length...
His start in the world record was quite a bit better than most of his starts, which is why people identify it as an overall weakness...
Beginnig sound ?
It’s all about two things a great start and then keeping top end speed for longer.
Thanku for this help
2.7m step length.. people in my old primary school couldn’t even do a running long jump that far
How can you compare kids to a tall man though?
Do you know that long jumps are always harder
It was a joke😂
xD like yeah, wow!!
@@tamircohen1512 because a long jump isn't a stride length, it's a jump
what app are you using to break this form down?
One thing people always seem to miss with Usain is just how much curve his spine has from a side profile, if you watch carefully you can see how much this acts kind of like a spring and puts his upper body weight in an optimal position leveraging from his hips. This is particularly noticeable in footage of him running without a shirt just how exaggerated that curve is.
I'm just really starting to get into running but it seems like in the starts bolt is kind zig zagging ever so slightly if you know what i mean. is that helping him or no?
2 reasons: You can't lean effectively in the acceleration while bringing the legs up directly in front of you, there's not enough clearance, and the strongest part so best contact of your foot is the ball through the big toe, so you foot pronate outward slightly. You accelerate on skates the same way.
Have you got any references for this information? Such as the angle of degrees for upper body tilt, or is this all based from watching the replay?
? The only way you could obtain that information is from the replay man
Id love to see a side by side of Bolt, Tyrik Hill, and Matthew Boling..
i'd like to see tarrence laird side by side with Usain but matthew is fast too
what software do you use to create those tracking lines?
very good analysis
Forward body tilt 7:29. You measure the body tilt from the hip not from the foot. There is no way he is tilting 22degree in that frame.
Thought the same thing
The important point is the hip, not the shoulder. You must run like a broken lawn chair.
He didn't run 12.19m/s, he ran over 12.4m/s, possibly as high as 12.5m/s based on possible measurement errors (IAAF Biomechanical analysis of sprints:Official report Berlin 2009). He was definitely much faster than anybody else has ever run and he was ahead from virtually the 10m mark.
I also saw some data on his maximum ower production out of the blocks. It was ridiculous, almost inhuman. Compared to a Olyoic cyclist producing about max 1000-1500kW, Bolt was around 2800!!!!!😲
I think Bolt's coach did a great job with the scoliosis, his technique as a teenager was terrible, he's bout as good as he could be given his condition really.
Nice vid👌👌👍👍
Can I ask something, does angle of the base of the foot effect running mobility or does the speed and the center of mass change and effect the angle of the base of the foot?
Nice work, congrats, at 5:09 which competition it is, and where i can have the video with out traces ? thanks im doing a work on how baseball players Run , thanks again
london 2012 olympics
I almost fall asleep I use this vid if I cant sleep will
Great video!
Please do Andre de grasse 🇨🇦
His back was as crooked as a politician, but he overcame that and became the fastest man in the world.
What are the best sprinting shoes? Your opinions
He almost touch the ground with the whole foot. The key is the tension of the dorsalflexion
Just courteous what was his top speed during the race?
27.78mph for 1.61 in 60-80 meters when he got 9.58
@@knucklestheradred774 Thank you that's fantastic
So basically ur wondering how the hell he does what he did with all that, so called fault? It's called legend.🙅💪💪
Usain bolt uses the palm of his feet most people use there toes to run but the palm of the feet has more. Power
Make videos on running analysis of Bob 'bullet' hayes
How far apart are his steps
Some of this analysis is way off.... there are things he is doing that makes himself lighter during exceleration and one small thing he is doing that helps him cut through the air to reduce drag similar to Michael Johnson and you haven't touched on it at all because you're so focused on force.
WTF that sounds amazing. Reduce air drag, please explain or point your source. TY.
@@llluuuyyyoooyou can’t do that, only way is to wear tight clothes and have short hair or wear something that doesn’t make your hair fly as well as proper form
@@JimmyKim-fb1ji i didnt say it, someone commented it above us. But if proper form and thin clothing is all what it takes, all sprinters have that, so he meant something else.
He isn't considered, he is. Point blank period
Well for some reason people think nfl players are faster
3:35 it’s 12.42 m/s my guy
Hey is it possible to be a Olympian for a man of 160m tall
160 metres??that's as tall as buildings
Sonia Majotra cm* but for 160cm tall still can be a olyimpian
Of course! Just prepare your legs cuz you are gona sprint at 200000 steps per second
Nope not possible sorry
4:40
the amount of power he produces each stride on his feet and muscles is almost inhuman. I dont remember how to do the physics for the amount of force in that little time on each stride on the average man or woman would be well over enough to send people to hospitals for foot injuries or muscle tears.
What about the camera man
Couldn’t use the first footage because he’s just to fast
why would you look at the time if you are still in the race ? its like asking somebody how long do we still have to wait. time doesnt pass quicker by looking at a clock.
so they see their time
@@tq4094 it makes them slower ,doesnt it ?
Matimio S they look at the clock when they are right by the finish line and it will make them slower if they look at it not right before they are at the finish line
If you look closely you could notice micheal todd hiding under the table
Lmfao wth that was so random but I get what your saying
@@normanpang9376 nice that you got the ref;)
THE GREATEST FASTEST MAN IN THE WORLD USAIN BOLT
He was having accully at 80m his top speed
Just because he’s tall means absolutely nothing it’s all the brain an use are going to see a new world record very soon by my self
He ran 6.31 at 60m.
That's what surprised me, he basically broke the 60m indoor world record, even though he is not known as the best starter
Put subtitles in Spanish pls
And I’m 5.12 in height
Dr. JP: "what makes usain bolt so fast."
Me: because he is black
2.7m strides his advantage 🙊
👍
Do Tyson gay
Im already looking into it! Thank you for the suggestion!
Technically Usain is not the best
You should have used Karl Lewis or Green
This is mostly nonsense. Push off? Extending the hips? Pose method does a far better job at assessing Bolts running and explain why.
Nama : Riza Nurul Qamalia
Kelas : X Mipa 1
Who's faster than Bolt?
The Camera Man
National Geographic: The cameraman is always there first.
Hindi plz
You should really show your sources from the information you’re putting out here because I don’t think you’re the creator of all this information you might have consolidated it but please name your sources
Huh
Huh?
You can justify anything if you win..lol
He is 1.95m tall...that's why he won against that competition. The bigger, the more chances you have to win at such stuff. In order to defeat him, you need to have either way more steps per minute or larger steps than him...and how could you do that if you are 10cm smaller than him? Well, 10cm....isn't even that bad of a difference, you still could produce long steps, but shorter than his....so you need as long steps as you can produce + having more steps per minute than him, with a perfect start and finish. That's a challenge. It's not impossible, but I doubt that there will appear someone who will break his record at 100m in the near future.
Communication is not a sprint. Try speaking more slowly and clearly. I gave up listening because you speak so quickly. The point of communication is to get your message across. The finish line is when your listener understands your message.
Usain bolt don't have the best technic, he is just tall than other runner. I think maurice green was better
If Maurice Greene had better technique he would have the record right now IMO. Also he wouldn't have been plagued with so many injuries that stopped his career at 33. Where as Usain bolt was still able to pursue a football career at the same age. So UB has the records and the longevity there by meaning his technique was greater for sport and life after the fact. He stopped playing football because he could get a contract on a team.
@@GMG7254 maurice green 1,76, usain bolt 1,95, 19 cm different, Muarice green is better between tall/record than bolt. If bolt was training like green, He would make 9.50 or less
@@GMG7254 Greene had great technique you serious?
@@elijahebbert6884 sure it's great.. but better than UB? not even close. I'm looking at individual records, cycles of injury and competition, and life after track. UB has done much more, his technique helped him win and prevented catastrophic injuries.
@@GMG7254 no doubt but Greene's drive phase is second to only asafa powell, he had the 60m record for almost 20 years too. But obvious bolt had much more longevity and impact.
To be no 1 you just need to run fast....this theory are all bullshit😂🤣😅
Jeenyus.
I can run faster than him lol
Lmao what
Lol no
Lol
🗿
- 8 year old Jeff