Quote from Tony Dziepak
So a side point of the article is that one can achieve a higher throw by throwing horizontally into a (presumed frictionless) deflector box than just throwing it up in the air because of biomechanical factors. The same reasoning may hold for shot put. That is, the optimal angle of release is lower than what you learn in physics class about the cannonball because, unlike the cannon, the thrower's terminal velocity may be inversely related to angle of release due to biomechanical factors.
published at May 7th 2013 6:02pm on http://www.effortlessthrow.org/
Quote from Brad Reid
Just to add another variable, imagine two people standing near a vertical brick wall where a bathroom scale is mounted at chest height, the mens' legs are either in-line or one in front of the other for a bit of leverage. Arms are straight, hands on the scales, pushing all out. Which of the two men can register the greatest pressure on the scale doing a standing bench press form of a push?
Answer: The heavier man . . . almost regardless of differences in strength.
This is why irrespective of how strong a small man may be, say like Ed Coan, the greatest powerlifter of all time, he'd never have made it as an offensive lineman in the NFL. His vertical strengths are useless in a horizontal world.
So, now change the angle to essentially the angle of an incline press. Suddenly, the two pushers can get a bit more of a "purchase" against the ground and strength comes into play a bit more, gross bulk a bit less.
Here, think of Mark Stepnowski, a smallish center in the NFL playing under Troy Aikman. Stepnowski could manage a better attack angle than the big flat pushing monsters he fought against . . . often coming out ahead. The angle (leverage) saved him.
Finally, same set up with scale directly overhead, two men pushing up against it. Even if one man is twice as large as the other, if the smaller man is stronger, good old Mother Earth "has his back" and he registers the highest pressure reading on the scale.
We bench press > weights than we incline press; and, we incline press > weights that we overhead press. But, wait, those are practiced where each lift is perfectly vertical. How about applications where we are standing and throwing at between horizontal and, say, 45 degrees? It makes a big difference on how strength is factored.
So, for shot putting, one has the physics of projectiles for different angles at the same release speed, but as you state, it isn't all there is.
So, anyway, two big men and bodyweight would be most important for flat throws. Start raising the angle of release toward the optimal trajectory angle, and strength becomes more and more important and may give one thrower not only a trajectory angle advantage but also a strength advantage, that is, he can thrust harder.
P.S. I'd go or coach for the size one still needs to optimize a properly angled release, strength, too, to handle it coming into play more and more as one moves away from a flat throw, and then get as close to the optimal trajectory as possible. br
published at May 7th 2013 8:02pm on http://www.effortlessthrow.org/