Originally Posted by TheNext44
It's all in the legs, not the arm. The secret is in the length of your stride. Lincecum's stride is almost twice as long as other pitcher's, one of the main purposes of his funky delivery. Maddux, Clemens had big strides too.
But the one that sticks out in my mind was Seaver's. He used to wear out a hole in the right knee of his pants with every start.
Seaver was a drop-and-drive pitcher, and that style is not as popular as it once was. Back in the '70s and early '80s (and surely before), there were a lot of rotator cuff injuries to those drop-and-drive pitchers because their arms were going forward after
the body's explosive drive. They were not using their arms with
their bodies. The drop-and-drive is extremely stressful on the rotator cuff and back shoulder muscles (see drop-and-driver Jake Peavy).
Compare Travis Wood's mechanics to drop-and-driver Tom Seaver. Wood rotates his core body muscles with
his arm over a stiff front leg. Seaver is pushing powerfully forward and then launching at the end of the thrust. Wood doesn't throw as hard but is obviously exerting far less drive and stress.