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Measuring Vertical Jump With Frame Counting (At home) 

Jumpsbychi
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Calculations were made assuming the jump was done in a vacuum (no air resistance)
A few things to note when measuring vertical jump with frame counting:
1. Measurement will be most accurate with a jump that is straight up and down (limited horizontal movement)
2. Higher fps videos allow for more accurate calculations
3. Be consistent in the way you count frames (where you mark start and finish)
Formula:
D = (.5)at^2
We know how long it takes to reach the ground from the peak of the jump (t) From the peak, gravity is the only force acting upon your body (in a vacuum/in the absence of air resistance) Using time and gravity's acceleration we determine the distance from the peak of the jump to the ground would be the same as the distance from the ground to the peak of the jump.
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29 сен 2024

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Комментарии : 81   
@Jumpsbychi
@Jumpsbychi 4 года назад
Thanks for watching! 1. Check the description for some more info 2. I know the audio is ALL over the place. My bad😬
@nightshade207yt
@nightshade207yt 4 года назад
I need some help man, my vert has been going down
@TukeShark
@TukeShark 4 года назад
NightShade207 I lost all my muscles :(
@TomDunks
@TomDunks 4 года назад
By the way guys, don't always divide by 240. Chi did it because he has a good camera that records in 240fps. If you got a standard phone it will be either 30 or 60.
@Jumpsbychi
@Jumpsbychi 4 года назад
This. I need you to plan out my videos for me 😭A lot of things I could've explained better. Thanks!
@JifeLacket
@JifeLacket 2 года назад
@@Jumpsbychi All good! Just found your channel and want to get into shape again. Need some knee surgery first though so I'll be following your vids for inspiration! Keep it up!
@aidankovacs4493
@aidankovacs4493 3 года назад
Is the reason for the discrepancy because vertec measures your jump from a flat foot stance while frame counting is when your foot actually leaves the ground?
@TomDunks
@TomDunks 4 года назад
"if you dont know who Jordan is...I cant help you" 😂
@CoolColJ
@CoolColJ 4 года назад
It's actually from feet flat before take off to flat feet landing. If you land with toes down you lose inches. This way your actually measuring body displacement
@Jumpsbychi
@Jumpsbychi 4 года назад
I measure it the way I do because they are clear points I can recognize in the footage. I think there's a bit higher chance to not be consistent between the measurement of two jumps when you try and identify when the foot goes flat. But that way would definitely be a bit more accurate. Just harder to consistently replicate imo.
@CoolColJ
@CoolColJ 4 года назад
@@Jumpsbychi I like using this app and website to do it - takes out all the effort :) www.thehoopsgeek.com/measurement-app/
@Jumpsbychi
@Jumpsbychi 4 года назад
@@CoolColJ Oh wow I just tried it. Definitely super useful
@andybritishairways9427
@andybritishairways9427 2 года назад
Awesome video . I often wondered how frame counting worked in relation to vertical measuring. I'm no mathematician. I feel that the difference in measurements is due to the way the reach is measured before a vertec test . They have their feet flat on the floor and stretch up one hand . When you measured your vert by frame count you started from almost tip toes / balls of your feet . This can easily make between a 4 to 5 inch difference. Personally I think a persons reach should be measured by them standing on the balls of there feet and reaching as high as they can , as that would be closest to their last point of contact with the floor .
@bushin28
@bushin28 Год назад
Spot on
@troliskimosko
@troliskimosko 4 года назад
damn just tried to test this and my vert dropped from 28” to 18” 😭
@onlyenzoYT
@onlyenzoYT 4 года назад
Bro i should’ve listened in school
@Jumpsbychi
@Jumpsbychi 4 года назад
😂😂
@kevinisthebest2004
@kevinisthebest2004 4 года назад
How long have you been working on your vertical ?!?!
@Jumpsbychi
@Jumpsbychi 4 года назад
I count most of my sports play as times when I 'worked' on my vertical which would be 10 + years. But I started lifting almost 7 years ago.
@jasonhuang5175
@jasonhuang5175 4 года назад
Thank you Chi!I just used the way you taught in video and I calculated my stanting vert is 30.8 inch and my two feet is 33.5 inch. I’m surprised that I gain some vert!
@dylanclancy2676
@dylanclancy2676 4 года назад
Hey man! Any tips to increase my vertical. Thanks, good to see you back
@Jumpsbychi
@Jumpsbychi 4 года назад
These are all the tips I have on the subject so far: ru-vid.com/group/PLASmp9XIatdBVsliGBUDZBU5NnQmAfw8q
@mateusz_karpow
@mateusz_karpow 4 года назад
There is an app called vertvission and it counts the vert for you so you don't have to do the math
@vincentlaurente2178
@vincentlaurente2178 4 года назад
What is your height bro
@Dae2Trilla
@Dae2Trilla 4 года назад
My favorite class of the day Very calculation class👌😂
@airlegoland
@airlegoland 3 года назад
The difference is because frame counting doesn't include the extra height you get from going on your toes, so if you add your heel height to your frame counting vert, it would be similar to the one measured by the vert tec
@Lobsang_97
@Lobsang_97 3 года назад
Did you check the Jordan’s vert?
@camyjumps
@camyjumps 4 года назад
I've compared your flight time to some of the highest NFL verticals (highest was about 45") and they're in the air for about 0.83-0.86. your 0.88 flight time is stupid elite.
@Jumpsbychi
@Jumpsbychi 4 года назад
Camy Dunks oooo that’s actually super interesting
@antoncoker
@antoncoker 2 года назад
If my hang time is 0.77s, how good is tha then?
@antoncoker
@antoncoker 2 года назад
This app measured me as a 36 inch vertical
@WilliamProdigy
@WilliamProdigy 4 года назад
Hey what are some tips to get mlre flexible. I’m 5’8 at rim right now and I tried squatting and other weightlifting exercises but my hips are super tight and can’t do one squat correctly
@Jumpsbychi
@Jumpsbychi 4 года назад
Could be a number of things that I probably wouldn't be able to help with even if I knew the specific problem. Look up 'Squat university hip' You'll probably find some good info there.
@troliskimosko
@troliskimosko 4 года назад
so is frame counting a more accurate measurement? i mean if he didn't have a 49 inch vert how did he touch the thing at the top? is it because the vertec is inaccurate instead?
@Jumpsbychi
@Jumpsbychi 4 года назад
I wouldn't necessarily say either is more accurate. The way I marked where his jump started and ended is going to lower the his estimated vertical though. But I do it the way I do because it's easy to replicate that way of measurement across different jumps. Both methods have their flaws though. You can cheat your standing reach when measuring on a vertec to give yourself a high vertical, and similarly, you can bend your knees excessively before landing to increase your flight time using framecounting.
@Tyrese-hm6bs
@Tyrese-hm6bs 4 года назад
This actually works pretty well. I did this to myself and I got 30 inches
@beidouvirus3978
@beidouvirus3978 4 года назад
There's really one simple reason why frame counting consistently "lowers" your vertical by about 3-4 inches, and that's because you begin counting frames at the point that you were on tiptoes off the ground. However, a person's effective vertical is max reach minus standing reach, or at least that's how many pro leagues see it. You can't really start counting frames from the point that your feet are flat either though, as until you leave the ground, your movement is not being affected solely by gravitational acceleration. It's correct to frame count how you did it, but do simply take note of the extra inches that come from right before takeoff. By the way, you are a freak, Chi. An inspiration to aspiring leapers everywhere.
@Jumpsbychi
@Jumpsbychi 4 года назад
Yea definitely could have explored the reasons behind the differences. Thanks for the comment 😀
@lebaldjames400
@lebaldjames400 3 года назад
Now I see it said I had 27 inches when I have 31
@urbrodieaj2363
@urbrodieaj2363 4 года назад
You can download any vid on RU-vid and frame count the self proclaimed verticals
@camyjumps
@camyjumps 4 года назад
You can go frame by frame with the keys and if you right-click the video you can get the frame rate!
@Emanzenaman
@Emanzenaman 4 года назад
seems like you have to subtract 4 inches from the vertec verticals
@huh155
@huh155 Месяц назад
How tall are bro
@Tyrese-hm6bs
@Tyrese-hm6bs 4 года назад
I need advice. I’m a two foot jumper and I can grab rim how can I go from this to dunking
@Jumpsbychi
@Jumpsbychi 4 года назад
ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-MNblT25y97s.html
@keithlomax5805
@keithlomax5805 4 года назад
Do more core Exercises. You just need a little bit more explosion when you Jump, and that comes from your core(abs)...
@jeremiah5808
@jeremiah5808 4 года назад
Only 34”?? Must’ve been after leg day
@Jumpsbychi
@Jumpsbychi 4 года назад
Right after my workout 😭
@dylanclancy2676
@dylanclancy2676 4 года назад
What does your diet look like??
@Jumpsbychi
@Jumpsbychi 4 года назад
Rice, chicken, fish (mostly salmon), potatoes, and eggs. Those are the foods I eat most frequently.
@OnceABustAlwaysABust
@OnceABustAlwaysABust 4 года назад
Genius
@shuklastrength7707
@shuklastrength7707 4 года назад
Great video bro - curious about your assumption that it's the same time to come to the apex of the jump as it is to land from the apex. Was that to simplify the math or is that a general fact of physics? Super cool stuff, keep it up!
@Jumpsbychi
@Jumpsbychi 4 года назад
Thanks man. As far as I understand the time to the peak and the time to the ground are symmetrical. Like the trajectory or flight path is as well. Definitely could be something I'm missing though
@hoopingwithhamez
@hoopingwithhamez 4 года назад
this was a proper maths lesson😂😂
@MIL3SHIGHCLUB
@MIL3SHIGHCLUB 4 года назад
My boy can code? You should make an app so people can share their progress
@Jumpsbychi
@Jumpsbychi 4 года назад
That's a solid idea! I have a lot to learn but might work on something like that to add to my portfolio
@thedillon
@thedillon 4 года назад
Where can we use the vertical calculator??
@Jumpsbychi
@Jumpsbychi 4 года назад
It's just on my computer. If you know your flight time though, you can find the corresponding vertical here: www.addoa.com/blog/diy-how-calculate-your-vertical-jump
@ppanda2974
@ppanda2974 4 года назад
What’s your standing reach??
@Jumpsbychi
@Jumpsbychi 4 года назад
7'8.5"
@dharyoliverjackydorvil4606
@dharyoliverjackydorvil4606 4 года назад
We've missed it
@NathanGeorgeDunks
@NathanGeorgeDunks 4 года назад
Happy birthday 😂 and oh man them python error codes brought me back to high school 😭
@JosephCbell
@JosephCbell 4 года назад
So underrated
@yaseenwilson1797
@yaseenwilson1797 4 года назад
Personally I think he has maybe a 39-40 inch vert. This dude is crazy with his bounce. stay on the grind 💪🏾
@lebaldjames400
@lebaldjames400 3 года назад
Yeah it takes off 4 inches of your actual jump
@WaylonnnS
@WaylonnnS 4 года назад
Hey good content bro! What do you do for your achilles rehab? stretch and and be physics with it to build muscle or just ice and rest
@TukeShark
@TukeShark 4 года назад
0:31 :(
@Jumpsbychi
@Jumpsbychi 4 года назад
Hahaha all part of the journey though
@youngmelo2335
@youngmelo2335 4 года назад
fuck i cant afford a decent phone that has slow mo
@Jumpsbychi
@Jumpsbychi 4 года назад
You don't need to have a slow mo camera. But definitely helps you be a bit more precise.
@youngmelo2335
@youngmelo2335 4 года назад
@@Jumpsbychi ik but mine only has 30fps
@ryanreviews8566
@ryanreviews8566 2 года назад
could we ask for a link to your python vert calculator?
@TheRivalKillers
@TheRivalKillers 4 года назад
thank you for the math lesson🙏🏽
@dimitriss3635
@dimitriss3635 3 года назад
i dont think it applies in every situation,i tried with counting frames, in VEGAS ,in a jump i jumped 34 inches for a fact,and it came out 28 inches. Plus the frames were 23/30 and divide by 2 to find the time of flight,but when i tried measuring the time of the jump itself,it came out 0,23 seconds as well I don't know man,it's late here i might be trippin but this video was hella interesting
@j1nx202
@j1nx202 Год назад
i know this is two years late but its cause you measure jump from a flat foot but in this vid you do it once you leave your tippie toes
@eduardomoreira7624
@eduardomoreira7624 3 года назад
I can’t find the app on the App Store
@aidanhennessy9252
@aidanhennessy9252 4 года назад
Great video as always!😁 what was your major in college?
@Jumpsbychi
@Jumpsbychi 4 года назад
Aidan Hennessy Thank you 🙏🏽 I studied economics
@vidtrevs0521
@vidtrevs0521 3 года назад
math ew
@bryandematos3835
@bryandematos3835 3 года назад
Is iphone xr 240 frames per second
@Jumpsbychi
@Jumpsbychi 3 года назад
Yes I believe so. The default for slow mo should be 240fps. You should also be able to change to 120fpd
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