Dilemma

Welcome to Discuss Fastpitch

Your FREE Account is waiting to the Best Softball Community on the Web.

Jun 17, 2009
15,105
0
Portland, OR
Take note of the change in the ball/hand orientation .......

20tm3gg.gif
 
Jun 17, 2009
15,105
0
Portland, OR
I simply refer to the above as 'overlap'.

Javasource recently posted the following. IMO it is worth understanding.


From the chapter, Development of Ballistic Skills

Another interesting commonality across these complex projectile skills is that they employ a backswing to place the body segments in position to move forward. In the advanced form of striking, throwing, and kicking, the backswing and forward swing partially overlap, and proximal segments begin to move forward while more distal segments are still moving backward. The advanced form of these movements also involves strong acceleration of the distal segment just milliseconds before contact or release, which yields high distal angular velocity. This acceleration seems to result partially from the inertia of each distal segment against the motion of adjacent proximal segments. The lagging segment stretches the agonist muscles of the distal segment, which may in turn excite reflexes that augment the muscular contractions in the distal segment (Roberts & Metcalfe, 1968). As we will see, lag is one aspect of object projection that develops only gradually over time. It is so important for effective ballistic movement that Southard (2002a, 2002b) used lag as a collective variable in his studies of throwing.
 

Members online

No members online now.

Forum statistics

Threads
42,830
Messages
679,481
Members
21,445
Latest member
Bmac81802
Top