Height advantage also plays a role the way it did for King Bolt.If you are tall and happen to be fast, then you have it all.You make one stride while others make two.Its enviable.
True, height is definitely a factor. Whats interesting though is that height doesnt directly factor into increased step length. Like Michael Norman (6 ft 2) has a shorter step length than Wayde Van Niekerk (6 ft)
Great until the point you mentioned over-striding. The foot lands ahead of the body because you're moving forward and it's their to catch your forward momentum, absorb it and propel you forward. The over-striding comes when someone lands ahead of their centre of mass and their foot is fully planted but their hips are still behind the ankle so you start trying to absorb your weight whilst your foot is outreached. His form is actually excellent on that point. The only time our foot doesn't land ahead of the body is if we're running on the spot.
Trevelyan Harper Great insight! I actually had a discussion about this later with other running experts. First, the view of where I pointed it out was definitely not the best angle. It looks way more exaggerated than it actually appears. Second, you are correct about where foot placement should be actually be in relationship to the center of mass of the body. The faster the speed, the more the center of mass is shifted forward, which is why short distance sprinters seem to look like they are overstriding, but really are not. In the end, after looking are more views, we ended up still seeing a SLIGHT overstride, but definitely not as pronounced as it originally seemed to be. Anyway, side note, I decided to take a look at your channel. I just wanted to say I enjoyed your recent videos. I hope you continue to make more!!
Hey JP, thanks for the reply. Yea, I think the analysis in your video is very good. Your channel has some very cool vids that I've been watching for a while. Thanks for checking out my channel! I've got loads of content in the pipeline. Sub and stay tuned! It'll be great to see what you think of my form video I'm about to put out.
Thanks for all these studies,i had to run 1 km in 3.50 for a military test but last week last week when i tried the km on the track i was not able to break through 4.10. Today just by adopting proper technique i was able to run it in 3,46 and i felt like i could keep that phase much longer.
The forward lean doesn't look like he's leaning at all cause it's a slight lean, kinda hard to notice it if you don't look closely or know about running
Used to do some track as middle distance runner, but i learned a lot about analyzing movement from working with people as a physical therapist as well as doing tons of research
Yes form is a lot, but also it depends on strength, and how your lungs, blood system all work to get the energy to your muscles and , getting the lactic acid out. . So genetics, form, mental toughness, training , all of the above.
Appropriate point; everyone talks about his perfect form till someone with a completely different style breaks Rudisha's record; even though that might not happen for a long while. But like Michael Johnson in the 200m; he had that straight up, even kinda leaning back style in the 200m and he had the World Record in that distance and still one of the fastest times in History.
should have mentioned his great ankle dorsiflexion and forward lean during his late support phase wich doesn't lead to too much vertical bounce but more horizontal propulsion. It's called ankle rocker.
Notice his heel never hits. Basically, all elites are that way, up to the marathon. It's the most efficient stride if you can maintain it, but it takes unique power to weight to do it at the long distances (smaller and lighter, but still long legs in proportion). Ex 800m guy here and Rudisha is a treat to watch: an amazing runner for the ages.
Do you think he would run an even faster time if he didn't slightly over stride? Or does this possibly help him in this particular distance but consequently cause the knee issues?
Great question! Exchanging some risk of injury for improved force production is a concept mostly seen in power lifting. However, overstriding is not like that. As for increased speed, generally its actually better to get that foot closer to the body instead. Keeping the foot out actually slows down leg turnover a bit. Looking back at this video, he he didnt overstride that much, but coincidentally, the footage I was looking at closely, caught one of those moments. I hope that makes sense!
OHAPPYDAY If they have a proper track, you're at the track, not at the gym. The gym is most likely an addition to the track. How long is it? What distances do you run? And you can't run on a threadmill if you have a stride longer than 1.5m, aka slightly longer than a jog
Great analysis apart from one thing. He does NOT over stride! If he did, he would not be the word record holder. It appears he is because he is not being filmed in proper slo-mo. If you look carefully, in the last instance, when his foot is an inch off the ground, it dives under his pelvis, exactly where it should be. Otherwise he would be break running. This happens at the last instance because he is going so fast. You can't lean forward and do this if are running slow because you will fall forward. It also appears he is over striding because his legs are so long. But he has the most perfect form of anyone I have seen. The only runners who come close are Coe and Kipchoge.
Jupiterbase13 Yeah, it doesn't matter as much!! I talked about it in a previous comment here, but yeah, since he has a nice forward lean and he is running at INCREDIBLE speeds..therefore body weight is shifted forward, the overstride is definitely not as pronounced as it looks in the video
Your arms aren’t supposed to go side to side, you’re body and legs follow your arms, if you pump your arms faster your legs will go with them, and if your arms are side to side your body sways side to side, preventing full acceleration, basically what I’m saying is, rudisha could break 1:40 if he fixes his arms
You are incorrect on the 'leaning', he is actually very upright. The spot you chose to use shows him clearly in the take-off phase if you look at his foot. Go back one second and you will see his true landing spot which is very upright. Overall his form is near perfect and his speed comes from an incredible stride (flight) length.
Your analyses are incredibly useful. Cycling technique does not receive half the attention running does. Will you please dedicating some analyses to cycling technique? Get a cycling expert friend of yours and with your strategies to analyze, cycling technique would boom. Please, help us. If you don't have the time or not so interested
#In case you are not interested in cycling, teach somebody how to use the tools you use to describe movements to a cycling fan you can find among your friends. Please, this is badly needed. Cycling technique is way too ignored.
Thank you very very much!!! I certainly appreciate it. I hadn´t seen your answer until today, so today I asked you again. It'd be great for cyclists and swimmers to have a couple of your friends doing graphic analyses of great performers the way you do it!!!
Ahh I agree with you. To be honest, looking back, I knew forward tilt was helped, but I misunderstood the reasoning. The reason is more likely due to improved positioning for the hip extensors to produce force and slight increase in forward momentum...not gravity
@@JPGloria Right!!!! What I really meant there is not such thing as GRAVITY!!!!! I know, I know, I know what you think now......what is this punk talking about......well gravity is a theory and I know it's a famous one, however does not exist, there is density differences between bodies, objects etc, so what goes up must come down, and lighter things floating upwards in the vicinity of heavier or denser ones.................. :)
