sport science for coaches

Wayne Goldsmith:

In the sports science world things are based on facts, research, validity and reliability measures, measurement, accuracy and evidence.

In the coaching world the key focus areas are results, performance, communication, instinct and “feel” – the art of coaching. …

Keep jargon down to a minimum

Join the PAPPP – People Against Pointless PowerPoint Presentations

Keep background, historical information to a minimum

Don’t dumb down – coaches are not dumb

Ten Golden Rules for presenting sports science information to coaches.

Sonya Meraz – Beam tumbling

There’s not much science in this short science video. No mention of centre of mass over base of support. No discussion on how forces are generated.

But they are big on suede. 🙂 (A suede-like fabric, actually)

Click PLAY or watch it on Twitter.

a new dive – 513XD

Is a dive with 1.5 somersaults and 5 twists possible?

Some sport scientists believe it is but that a different arm action would be required. The body would tilt to the point of being near horizontal at one point before untilting for entry into the water.

diving-turns

Read the study by WILLIAM TONG AND HOLGER R. DULLIN – A NEW TWISTING SOMERSAULT – 513XD (PDF)

related – Fred Yeaden – LEARNING HOW TO TWIST FAST (PDF)

(via Lukewiwa)

Shaposh / Tkachev drill

Working with a gymnast new to Shaposh recently, I was wishing we had a Quick Flex Bar. This is by far the best way for kids to get started on all counter rotating releases.

Click PLAY or watch it on YouTube.

The hands are the only point of force application. Of course that hip action is needed to put more weight on the rail. The equal, opposite and simultaneous reaction force is what generates the counter rotation.