Pendulum Motion of the Serve
The subject of this post is limited to first video in Cross article (post # 645, probably the one before this one).
Two points.
1) The elbow and shoulders line are scrupulously connected (one less link therefore to worry about-- which link if it existed would weaken not strengthen the serve).
2) Let's translate fractions or percentages-- incomprehensible-- to ratio, which is closer to ATHLETE-READY.
Thus, elbow roughly preserves its compressed configuration for 70 per cent of its path up to the ball. Arm then extends in next 15 per cent of pathway. And starts twisting in final 15 per cent.
Translated to usable ratio, fire elbow for three out of four counts and split the final count between arm extension and arm twist.
Don't quantify the last instant change of direction from forearm motion to ulnar deviation. This happens too close to the ball to permit anyone that self-indulgence. You either produced great spin or you didn't.
The subject of this post is limited to first video in Cross article (post # 645, probably the one before this one).
Two points.
1) The elbow and shoulders line are scrupulously connected (one less link therefore to worry about-- which link if it existed would weaken not strengthen the serve).
2) Let's translate fractions or percentages-- incomprehensible-- to ratio, which is closer to ATHLETE-READY.
Thus, elbow roughly preserves its compressed configuration for 70 per cent of its path up to the ball. Arm then extends in next 15 per cent of pathway. And starts twisting in final 15 per cent.
Translated to usable ratio, fire elbow for three out of four counts and split the final count between arm extension and arm twist.
Don't quantify the last instant change of direction from forearm motion to ulnar deviation. This happens too close to the ball to permit anyone that self-indulgence. You either produced great spin or you didn't.
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