The Force-Velocity Relationship | Meaning and Implications (Updated) 

Glad to hear it, I definitely try to make these concepts clear and easy to understand 👍

no problem

no problem 👍

No problem 👍

Since making this video I have learned more about this concept and disagree with some aspects of it. Like you mentioned, this still applies to dynamic concentric and eccentric muscle actions, as seen during traditional resistance training. However, when it comes to athletic movements like sprinting and jumping, this concept goes out the window. Some of he highest GRF's seen are during completely unloaded movements like sprints and plyos

no problem 👍

Help me bro

Explain bro

No problem 👍

You can always use a resistance band to lighten the load 👍

@@FlowHighPerformance1 okay that makes sense. Does strength training so, weighted pull-ups contribute to the removing the bands in long-term? What i mean is the more strength u gain in the pull-up, the less force it takes to move your bodyweight from A to B. And this would eventually increase the speed overtime because the force (your bodyweight) will be easier than before. Is that correct? Im not native english speaker so im not sure if u understand what i mean. Anyways i will look into resistance bands

@@JamesCanDoIt yes that makes sense 👍

After 90 degrees of what?

Glad you liked it 👍

Yes, it doesn't consider the acceleration component of the equation. I have come to realise that this idea is not really applicable to many athletic movements 👍

Isometrics are right in the middle of the graph (at zero velocity)

No, this is purely for external force & velocity 👍

No problem 👍

Yes, I totally agree. Since making this video, I have come to the same realisation. The force-velocity curve only really applies to traditional resistance training. It doesn't really make sense when it comes to athletic movements like jumping and sprinting 👍

@@FlowHighPerformance1​​⁠ okay, after doing some digging, it seems like I was wrong. Peak ground reaction forces in a heavy squat are higher (even around 3500N in one study) than in a standing CMJ (seems like around 2000N usually). However, this was not the same subjects so it varies, and of course a max approach vertical jump will have higher vGRF and if you look at the Kirby study, it could be reasonably inferred that a max vertical jump could be higher or as high as a heavy squat or clean. And the heavy power clean or heavy jump squat has even higher peak forces than the heavy squat when compared between the same subjects. Obviously peak power is going to be lower in a squat compared to a power clean or jump squat or any vertical jump. When it comes to sprinting, it’s been reported that sprinters traveling at 11.7 m/s experience forces almost 5x bodyweight, which would put that at around 1000N, so well below what any squat would produce. Hope this helps! References: “Model for progression of strength, power, and speed training”-Kirby et al. “The Optimal Back Squat Load for Potential Osteogenesis”- Ebben et al. “GROUND REACTION FORCES DURING COMPETITIVE TRACK EVENTS: A MOTION BASED ASSESSMENT METHOD” -Udofa et al.

usually rep speed. but both ways are effective at estimating velocity 👍