Have a Question for Me?

[johnyandell]

Doc,
If you haven't you might enjoy working through my forehand series in teaching systems.

[doctorhl]

Thanks John. My tendency for biomechanical, left brain thinking overrides the right brain art form found in those with talent. No wonder I have to do "paint by numbers"!

[johnyandell]

Stotty,
There is no such thing as pronation on the serve. Pronation is the rotation of the forearm from the elbow. The rotation you are thinking of his the rotation of the upper arm in the shoulder. That's from the drop to the extension as shown in this article. Calling it pronation is ok as a teaching term. Brian Gordon found though that it simply didn't exist in the serve.

https://www.tennisplayer.net/members/ultimate_fundamentals/john_yandell/the_serve/

[stotty]

Taking pronation as a phase, when exactly does that phase start and finish?

Stotty

[johnyandell]

Stotty,
Another great find by you! First one works for me not the bottom two though. Jeff is on it.
JY

[stotty]

John, I cannot get the frame by frame videos working in this article https://www.tennisplayer.net/members...protocols.html

Is it my end or yours that's the problem?

Stotty

[johnyandell]

Doc,
I think you are thinking about this the wrong way. Yes the great players have it but they certainly don't know it or try to create it. I hope that had nothing to do with your injury. Get a full turn and left arm stretch and set up in a semi-open stance. (See some of the preparation articles in Advanced Tennis). That will maximize you power and that angle. The tricky thing with these biomechanical constructs even when true is cause and effect.

[bottle]

The expression "hip to shoulder angle/separation," unfortunately, could mean almost anything, although I know you have something very specific in mind and believe in your 25 per cent increase.

[doctorhl]

Apologies if hip to shoulder angle/ separation, immediately prior to forward movement on the FH or BH has already been discussed ad nauseum, but I feel like this is an efficient way to slowly increase power if timing can be tamed. I increased ball velocity, while maintaining control, by at least 25%.(gained so much power that I blew a lumbar disc-too late in life to implement!). Can you point to a clip that best represents a large angle? Since this is such a last second stretch prior to forward movement, it is hard to see. I wish someone would rig a waist and chest strap with embedded laser as a cheap way to help visualize the separation angle- still 2D, but better than the cost/time factor to try to digitize it.

[johnyandell]

Thanks!

[bobbyswift]

Nadal Novak in patterns is still not functional. Just bringing to your attention again. thanks

[johnyandell]

CPrompt It's possible. The issue now is the access. If we find opportunities to film doubles in practice we will but those are few and far between.

[bobbyswift]

In the pattern archive Nadal Novak 2011 doesn't play at all.

[johnyandell]

So something changed and you guys can't do it now? I will check...

[stotty]

How do I upload a video into my post?

Kyle LaCroix USPTA
Boca Raton

Good question. I'd like to know how to do this too?