The biomechanics of twisting somersaults has always been an interesting subject to me. I am currently coaching Trampoline and Tumbling, and my daughter Jenny is one of my athletes, (Air Sports Unlimited, Scottsdale, Arizona). Quite often I can’t resist doing something myself. Last weekend I watched one of my gymnasts try a Rudi (1 1/2 twist front somersault) into the pit. She … [Read more...]
Measuring Performance from Video: My Article in the Olympic Coach Magazine
My article titled “Measuring Basic Performance Parameters from Video: A Tutorial with Sprinting as an Example” was published yesterday in the US Olympic Committee’s online magazine called Olympic Coach. The article describes how to put together a very inexpensive analysis system comprising a high speed video camera, a Windows laptop and a powerful but free video analysis … [Read more...]
Discovery Magazine Website Article
After day one of the US Open I was interviewed for an article asking if there is a perfect swing in golf. I had a chance to talk about TPI, the AMM system and 3D analysis. Rory McIlroy was ahead after the first round and looked like a shoe in to win it (and he did). Rory’s swing was captured on the AMM3D system and analyzed using the TPI3D reports by the guys a the Butch … [Read more...]
3D Motion Art – Dynamic Golf Swing Posters
My wife Bridget and I have created eye-catching posters using the beautiful patterns of human motion. We call them "The 3D Motion Art Series". I believe these posters are unique, I have not seen anything like them on the Internet. They come in many different colors and the first release is focused on the golf swing. We are working on other sports such as baseball and … [Read more...]
This is how a pike position should look!
I saw this picture in my recently received USA Diving magazine. What an amazing pike position! This is interesting biomechanically, for two reasons; 1) Moment of Inertia – I recently discussed how to make a somersault spin rapidly and here is the picture perfect example. I don’t think a pike could be any tighter and for him, his moment of inertia is as small as he is … [Read more...]