Stone cold locks.

Status
Not open for further replies.

Brian Manzella

Administrator
I love my TrackMan. It makes teaching a lot easier. I guess less, and fix faster. Period. End of the story.

But I don't teach TrackMan. I teach what I teach.

I teach the three phases of the downswing discovered by Dr. Nesbit. I teach the three torques you can apply to the club. I teach body placement, movement and accelerations and decelerations that help the golfer apply those torques at the right times.

I teach ball flight based on the resultant path and the clubface normal. More down, more skewed path to the right, and the more up, the more left. The face "point" is 3D. The D-Plane if you will.

I have used a video camera since 1985 and not one of them had a global shutter. So they all had rolling shutter distortion, and every 2D camera has parallax problems.

When I have the chance, I use 3D capture systems. Especially for our Project 1.68 research. Every one of these systems have some minor flaw or less than ideal set-up or capture. There all are better than using video for this information.

Michael Jacobs is now heavily into force plates, and we are doing some 3D+TrackMan+Motion Reality 3D+global shutter research soon.

I have spent some time of Enso-pro and will be spending a day on one in the next couple of months. It measures the whole club, the whole swing.

Here is the straight dope: One day there will be a better system for measuring the club and ball than TrackMan, a better video camera that is actually 6 degree of freedom 3D, better 3D capture with better graphs, better than an Enso-pro full club measurement device, and force plates that work even better.

But they will ALL MEASURE WHAT THEY ARE MEASURING NOW.

We will know more, and find some things we thought we knew were off a bit or more.

But, they are NEVER going to disprove the obvious. The path is 3D, the face is 3D, the body segments don't keep accelerating through impact, and forces in the ground are very important to body movements.

And I'll still be able to live teach at an exceptional level.


:)
 
You've made a great contribution to taking golf instruction to a new level IMO. You've helped me and that's why I know it's the right way, because I've seen and heard it all. I never believed any of it because it was all just hot air.

I think there is more to come as I believe that the whole speed change model has not yet been understood. I applaud your willingness to investigate further when others would just rest on their laurels and try to make as much money as possible whilst they are flavour of the month.

Where is Jacobs going with the force plate?
 
Status
Not open for further replies.
Top