Chas Tennis's latest activity

I like to view single frame. Is there any way to do single frame on Imgur? Youtube videos allow single frame using the period & comma...

Strong looking backhand. Can you get a clear high speed video, 240 fps? You have very rapid uppermost body turn (shoulders are seen...

To compare single frame on Youtube use the period & comma keys. Always select the video using Alt + Left Mouse Click, othewise the...

If the uppermost body rotates with acceleration and the upper arm is left to move as it will, the inertia of the upper arm and racket...

On your forehand, the line between your two shoulders and the line between your two hips move together, there is no separation angle...

The skeletal display shows Federer's upper arm bone, humerus. separating from his chest earlier than for a chest press technique...

I have made my best explanations with illustrations in earlier posts. I did that in posts after post #51. I have repeated in many posts...

Robin Solerling beat Nadal in a well known French Open match, 2009...

Looks as if Solderling has switched to a one hand backhand. ? 2011

No. The initial acceleration avoids using the shoulder joint as the uppermost body turns and its acceleration causes the upper arm to...

Video analyze your serves to answer your questions. To single frame on Youtube, use the period & comma keys. Technique (you need to...

I can't tell on that backhand. That is a warm up or practice shot. Chest press is the initial aceleration, it does not have to...

Compare strokes frame-by-frame on Youtube using the comma & period keys for single frame. Always select Youtube videos by holding down...

This information with videos shows the motion that leads to Thoracic Extension. Notice that as the head is lowered to its lowest point...

Pay attention to the type of serve that you are simulating and the hand path relative to the ball direction You can get a drawing of...