Force Velocity Profiling For Sprinters | Assess For Force or Velocity Deficits 

REFERENCES jbmorinsportscience.blogspot.com/2016/07/sprint-acceleration-force-velocity.html www.researchgate.net/publication/304253923_Effectiveness_of_an_optimized_training_using_Force-Velocity_profile_analysis www.researchgate.net/publication/287995954_Interpreting_Power-Force-Velocity_Profiles_for_Individualized_and_Specific_Training www.ncbi.nlm.nih.gov/pubmed/21364480 journal.frontiersin.org/article/10.3389/fphys.2016.00677/full www.ncbi.nlm.nih.gov/pmc/articles/PMC4689850/pdf/fphys-06-00404.pdf www.researchgate.net/profile/Jean-Benoit_Morin/publication/309965181_Very-Heavy_Sled_Training_for_Improving_Horizontal_Force_Output_in_Soccer_Players/links/58279a2608ae5c0137edff5a/Very-Heavy-Sled-Training-for-Improving-Horizontal-Force-Output-in-Soccer-Players.pdf pdfs.semanticscholar.org/4c2c/5695d2a32fe5e95b6c0696644c26ec6c06e1.pdf

Thank you for your teaching videos. Even at my 69 I’m still enjoying sprinting and your videos are helping me to stay on track. Thanks a lot!!

Happy to see you're back. I'm a sprinter at UMass Amherst and I love your videos, they helped me out a ton over this summer when I was working by myself. Still have a lot that I rewatch to this day. Good stuff!

Really appreciate this Cody. Have seen this video 3 times to really digest and take notes. I have been tracking my soccer athletes progress with this.

Thank you so much for this video. I'm writing an essay for my MSc in force-velocity profiling and this video helped massively!!!

I just found your channel from looking at you profile on response to my post about a strained quad. Just wanted to say that so far from all of the videos you have put out is that you make awesome content! Your videos have already taught me a whole bunch of stuff I’ve never really thought of even while being a collegiate sprinter myself. Definitely subbing 🤙

OMG!!! You're Baaaaack, thank you soooo much , now my Training withdrawal is over, HA HA HA, but seriously I'm so happy for your contribution and detailed breakdown on the mechanics and training of Sprinting, Keep it Up. I'm 66yrs. and compete as a Masters Athlete

To improve horizontal your foot must be at the correct angle when contact ground

AWESOME INFORMATION. THANK YOU! I WILL PUT INTO PRACTISE!

What is your FV number & how do you plan to get it closer to 100?

Glad you're back with a great video.

Yessir been waitin on you

you and John Evans are my go to for info 👍

Impeccable content!

Hello, The article by Morin and Samozino: Interpreting Power-Force-Velocity Profiles for Individualized and Specific Training stated that..... "Adding the previously described vertical profiling to this horizontal profiling could help better determine whether a lower HZT-F0 is due to an overall deficit of lower-limb strength (as indicated by a low VTC-Pmax) and/or a deficit in the transfer of this strength in the specific horizontal push-off motion (technical capability)." I am having trouble understanding what is considered a low vertical maximal power output. Can you help clarify? Hope to hear from you soon, Thanks again.

When you like and favorite before watching. ⌚ 💯 🥇

Fascinating! Are there any technical drills that should increase Horizontal Ratio of Force?

Cody, sorry for the 20 questions. I saw that you position the camera far enough to fit the whole 30m, and the official tutorial explains that you move the camera along with the athlete. Whats your thoughts on these? Love your vids 😍

great information thank you.

Great video Cody - let's see a case study on how the force program helps!

I can't find such apps on android please help ( or on a Windows pc)

Thank you for the app deep dive!

Great video ! But if you have a force deficit, how can you focus on horizontal force production instead of vertical force ? Bc if you go to gym and get stronger, how can you be sure not to improve vertical force only ?

Thanks !

Yes, i request it you made it 👍👍

Great content, really look forward to your vids.

Great info. I'll be getting the app.

Keep uploading... Loving content

Hey Cody, Awesome video. Does the MySprint app give a direct RF% measurement? If not, how would we calculate that or find another way to make calculated loading prescriptions?

Hi man hope you're doing fine Cal Dietz recommend to do step ups with the leg directly behind you to be more sport specific, with the step on your side instead of in front What are your ideas around this?

good morning, i would like to know why you are proposing the set up at 30m away from the 15m marks...I tough it was 10m the correct set up ? thanks for the answer

Why good channel don't have many subscriber ???

Thanks as always bro. Appreciate it

I use mySprint for myself and athletes for 30m and flying 10s, 20s. It takes a moment to get your head around the fact that kids with the same time over 30 can have completely different profiles. Question: I track athletes 10m from the centre pole how do you find the accuracy from a still position at 30m?

Could you please coach about how to deal with the first steps out of the block ?

Also you need to get on tiktok!!! so easy to grow on there and reach more views for people to come to this RU-vid Channel.

Good job, pretty concerning that NONE of the SCIENCE (and people having worked hours) behind all the points commented is explicitly acknowledged or even cited clearly within the video. Unless i missed it. The entire approach used within the testing and training tips you provide comes from the works of Drs Pierre Samozino, Jimenez-Reyes, myself and our group (this video covers at least 6 of our published studies). I really appreciate to see our work being applied and re-used by practitioners, but i guess is is nice/justified/fair to correctly cite the sources so people understand the original ideas and concepts were not yours. That's what professional people do/did. The blog references list some references but the content (written) and video are really unclear on the sources of knowledge used.

Hey cody this video is great, I was just wondering if you have excercises that i can do to improve my horizontal force as i do have a very good vertical and my strength is there, but i don’t feel like i’m fast as i can be when i’m at top speed as i know i lack the horizontal force

I asked Christopher Glaeser from Freelap Timing and he said that the minimum time interval that can be accurately timed is 0.80 seconds. This isn't low enough to get 5 meter intervals which could be as low as 0.45 seconds if one were a world class male sprinter during the 25 meter to 30 meter segment. How can this system reliably be used for this test?

I need to buy a new phone. Which Samsung phone for around $300 has slow mo replay?

Interesting video, but it would be good to speak about flexibility and mobility too! You can be as strong as you want, but if your psoas is totally blocked you are loosing a lot of efficiency for instance and your stride lenght will decrease. Sprint is not only a matter of strenght and power but also about technique and mobility. Doing too much strenght for instance can impact mobility if not done right.

My FV number is -125 ( negative 125), is that really possible or am i not strong enough?

What do you think of True Form Runners (those manual curved treadmills) for sprint workouts? I'm a 400/800 runner and I think they're great for transitioning from distance to sprints, they help a lot with putting force into the ground.

Great video. If space doesn't permit, what can I use to evacuate RF. Might those infrared sensors work?

hello cody ,great video how do you program long hill sprints 80-100m in the offseason , thanks for a reply !

Can you tell me for 200m do more repatation or exercise

Is that an automatic tracking camera mount that you're using to record yourself?

Can you please tell me if i lose weight will i be faster,i m 187 82kg but very lean

I feel like my deacceleration isnt on par and is making my sprints less stable and forceful

Do you know if you can import video from Android to IOS? As app is IOS only

how to master relaxation in sprinting

The app seems only available for IOS users?? No android??

Hi man hope you're doing fine Can you give me some advice on how to activate more the glutes? I'm very quad dominant so I'm trying to reset myself under this point of view both inside and outside the track

appreciate your content man, whats your 100m time?

Is the app 1 time payment, or every month

How is that horizontal force at top speed makes you faster? You don't accelerate,you maintain max velocity,horizontal,acceleration is zero,since F=MA,then horizontal force is also zero. Yeah,the force is zero,tho it consists of two opposing forces (when your foot is in front of your body's center of mass at the beginning of your ground contact time,ground reaction forces are gonna be in a direction that is opposite to your direction of running. At the end of your ground contact time,your hip and your center of mass go in front of your foot and vertical force now is angled again,and this vector allows you to balance out breaking force you created at the beginning of your ground contact time ). Now,as your top speed velocity increases,your center of mass goes forwards faster,this results in passing through your ground phase faster,so your ground contact time is shorter when you run faster. And to maintain your max velocity,you first need to equalize breaking forces (I wrote about that before) and second you need to apply some vertical force in order to avoid falling (gravity pulls you down when you're in the air,so you gotta counteract gravity on the ground so that you don't fall). Impulse is Force X Time. The bigger your impulse is (now we're talking about vertical impulses),the higher you're gonna bounce on each stride. So actually you don't need to bounce up higher in order to run faster. When you get faster,your ground contact time is shorter,so time in this formula (Impulse = Force X Time) decreases,and to make the same vertical bounce,we need to increase vertical force. You've been doing track for a looooong period of time,I've been doing it seriously for slightly more than a year,I know you know this concept,I know you've seen this concept,but you wouldn't have stressed the importance of horizontal forces if there weren't a reason for that. So probably I don't know something yet. What is it?

Is the My Sprint App not available for Android phones?

are you training to compete or no?

How legit is the app? Also it's not on play store

What’s a good ratio of force?

hi man . I started lifting weights for 3 months for strength (Deep Back Squat - Romanian Deadlift - Bench press - Hip thrust - Deadlift) with sprints in track but now after this 3 month strength training i want to do 1 month for explosive and more specific movements (Quarter Squat - Jump Squats - Box jump - Dpeth jumps - 10meter up hill sprint a) and after i do 1 week only sprints and timing my 100meter dush is that good .I hope an answer

Hey really liked the video, if you want to reach some more people check out the r/sprinting sub reddit. A lot people there would apricate this video