Hi JohnJohn Waters wrote:Of the pivots in the vertical plane, shoulder is primary, elbow is secondary and wrist is tertiary. That segmentation and the relative level of importance is based upon the muscle groups involved. Ditto speed generated. In the horizontal plane, hip and torso rotation are the key to speed. Your overlays show the speed generated by Steve's stroke.
I am sure Haysie talked about tip speed and the relativity to distance achieved. The key is how much you generate and how it impacts the loop. Look to the body to generate speed, not the rod.
John
I think i understand now. It's a whole body-rod spring starting from feet to knees, hips, shoulder, elbow to wrist. And the rod is an extension of the arm and ultimately of the whole body. Speed and path of the subsequent muscle groups/pivots start from the ground up. Some guys even step around with either foot as they rock back and forth. It's difficult to analyse the lower bits though, not to mention making the resultant graph more confusing. Yet, to see what happens from the shoulder up should be useful as the shoulder path results from what happens in the lower bits, not?
My initial interest was not so much about speed as about investigating subtle movements as well as often bandied terms such as "lead with the elbow", "late as possible rotation" "dip in hand path resulting in dipped rod tip path and tailing loops" (which seems the contrary now), etc. Though speed is the goal i think it's how efficiently movement is applied that make for good efficient speed and distance.
PS see comments around Stefan Viikaara's cast in my reply to Marc's suggestions.
All the best,
Dirk