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I’m Justin, a S&C Coach. I help athletes who run sub 12.5s in the 100m and 5.2s in the 40yd sprint faster.
If you don’t run those times, watch all my free videos, and do my free programs until you can, then come work with me!
I’ve helped multiple athletes run 10.4 in the 100m, and 4.4 in the 40yd. I’ve also trained Division 1 soccer, basketball, and track athletes.
Here is proof of my results and who I have trained:
justjumari.com/
For business inquiries or if you have a question please email: [e-mail]

[@justjumari]

Want to SPRINT FASTER? Go here: justjumari.com/the-speed-academy/

[@spartangaming5078]

Whats the best way to make ur glutes fire when sprinting?

[@oona6161]

Good day coach, on 0:55 I think the glutes and quads (not the hamstring) are lengthening on eccentric movement. And shortening on concentric movement.
More power on your channel, it helps me big time.💪

[@Bryghtt]

Yeah i just noticed that

[@raphaelaaron2288]

He said lowering the barbell so he is right

[@Bryghtt]

@@raphaelaaron2288 hamstrings don't lengthen or shorten during a squat

[@joekubicek650]

Where did you order the elastic bands??

[@nathanswenson2073]

Reps? Sets? Frequency?

[@akimmulondo5747]

do a on exericises for 13-16 year olds to increase speed in the videos show exercises to increase my speed please.nice video too.

[@clancy2535]

If I don't own resistance bands, then would holding dumbbells during the pogo exercise be a good be a good replacement?

[@Devon104]

Yeah

[@oona6161]

Pogos🦵💪 Thank you coach

[@justjumari]

✅✅

[@Anonymous-jy3ek]

So are nordic hamstring curls bad for speed ?

[@jordanhatch5825]

What were those bands being used?

[@epikzapt5432]

same i’m looking to buy them

[@user-jr2qb6vy5i]

🔥🔥🔥🔥

[@justjumari]

Let’s goo thanks

[@akimmulondo5747]

many say in videos that to increase speed,should do weight lifting like deadlift,power clean and many more.but i think lifting is going to slow you down or add weight to you and that will slow you down.

[@isaakvanwegen2784]

U think that because u know nothing ❤