Force production translation question for Squat and Deadlift

[Maj1979]

Yes and no to your question. Elite numbers aren't impossible to achieve. Many people never get there simply bc they don't train hard enough or smart enough to get there. So yes I do think people with a great vertical can achieve elite deadlift totals with the proper work but it's not so muh bc they're a great jumper. Remember, a vertical jump is a test for power production which has work and time components. You cannot do a slow vertical jump test. It must be fast. On the other hand, a deadlift is a strength movement that you could take 30seconds to finish and it doesn't matter bc you could do deadlifts slow and fast and as Long as the ROM is full then it's a completed lift

Good answer.

 

[nkosibaas]

@Docd187123 @theprodgicalson @Dr JIM

When football players are tested in the vertical jump and even the 40 yard dash/sprint and long jump. Foot positioning is pretty narrow. Of course the bigger boys are a bit wider relative to their size it is still narrow.

Why is it that max force output with these movements is with a narrower foot placement? Compared to the squat where we see the the guys squatting 1000+ lbs with a wide foot placement. Other creating a shorter distance with Sumo and wide stance squats.

Do we generate more force output with a narrower stance? Or is this just sport specific or based on the individual?

I would think the vertical jump mimics the squat and deadlift to some extent.

This is such a good question, I've wondered about it myself. I'm 6'1" and I'm a fat(ish) 280 pounds right now but I usually walk around at 260 - either way I'm thick and I'm fairly tall. Most guys my size I see pulling big(ish) numbers and pretty much all guys I see pulling huge numbers pull with a wide stance. I pull with the same narrow stance I high jump with - I just naturally generate more force off the ground there.

Squatting is a little easier to justify for me. At least from a powerlifting perspective the wider stance activates more hip resistance (I squat wide stance and I can't even break parallel without 250+ pounds on the bar).

Mark Bell did a good video on leverage vs range of motion recently (with the manager of my strength gym) and he used this example for squatting - some people can squat with a wide stance and need hundreds of pounds to get past parallel, and some guys have big meaty hamstrings they can bounce off their calves by squatting narrower. You try to take advantage of your own body mechanics and levers.