Bradley Walker wrote:Look at the hand action through the hit. The hand is holding the disc on the "other side" of the disc (opposite the thrower) and the hand *revolves* from the 9 o'clock (as seen from the top relative the 12 o'clock target) to nearly 2 o'clock completely on the other side of the disc at the actual release.
Due to this revolving around the rim of the disc, the disc is *ejected* from the hand in a rotary fashion (like rolling the disc down the arm).
This creates the rotary acceleration around the disc itself or the "disc pivot".
This man is not throwing the disc (as would be indicative of throwing the *CENTER* of the disc), he is slinging it more along the lines of the way one would throw a hatchet. Using the rim of the disc as a lever itself (like the handle of the hatchet and the weight of the center of the disc as the head/counterweight of the hatchet).
The rotation around the rim causes the disc to jump forward in space with very little spacial motion from the hand itself (in fact the hand nearly needs to slow down or change direction slightly to allow the disc to travel around the hand). Luckily, the disc pivot occurs right before the apex of the lower arm swing which provides both a linear "slow down" and an instantaneous change in direction.
Think of the hatchet throw.
Couple the lower arm acceleration to that rotational acceleration, and you have two stacked accelerations that occur simultaneously.
Holy crap!!! I have been missing that. It is not one single acceleration, it is two coupled. Neither are exceptional without the other. I have discussed both, but never coupled the two.
My God, that is it.... I have never seen good form combined with camera work show this any better. Marvelous. I think i am freaking out a little.
Somebody do an overhead shot now.
PS: I need to go back and look at the MDR 3000 slow mo again. I know he does all of the above well.
That lower arm acceleration coupled with pivoting the disc is also helped by the left leg push, hip twist shoulder turn. Each should be still producing energy as the disc is pivoting between the index finger and thumb. This vid of DCC shows the disc pivot very well. Although there is the kinetic chain and different starting times for each of these motions they overlap and are on for quite a while. Including the disc pivot and rip.
The wrist snap from closed to open does IIRC add about 10 % back to front linear speed to the disc. So you saw right it not only seems to add speed to the disc but it really does.
I can't Tommy at all. Hurt my deltoids last year and never had the body control to accelerate well topping at under 200' without roll. With roll 210'. I'm a por subjector overhead work. Thumber is occasionally shorter.