In your video, imagine a line between your two shoulders, imagine a line between your two hips. Imagine looking at these lines from above to see the angle between these two lines. (you are also tilted back, discussed later) This angle involves twisting and stretching the abdominal and spine muscles. This is called
separation. Separation allows your abdominal muscles to stretch and then shorten. It occurs on take back and also to start forward swing when the hips lead. These muscles add pace and maybe control(?). You can Google
separation plus tennis terms,
forehand, ITF, etc. That is lacking in your forehand. Use Djokovic as a model for comparison. You can see it on regular TV. But Djokovic is very flexible and conditioned and his angles may be too stressful and risky, especially for the spine.
To understand separation use the view above if possible and carefully study high level forehands.
I have posted on separation many times using that word. IFT presentations and B. Elliott's tennis books mention "separation".
The above camera view shows this much better than any other.
You should also look at 10 strong forehands and see if the above description fits nearly all or your technique of turning the shoulder and hips more together is used by any. Ignore warm up and lower paced forehand ATP videos that may not represent their stronger forehands.
Thread on
separation with Djokovic forehand videos.
https://tt.tennis-warehouse.com/ind...deo-my-strokes-11-30-18.632257/#post-12927371
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Djokovic forehand especially for foot position and posture (forward bend). 2nd video shows jump forehand.
Djokovic Forehand. View from behind. Also watch his off arm motion to speed uppermost body rotation.
View from above. See second forehand, both feet off ground.
Warning - Djokovic has exceptional flexibility and twists his spine during strokes more than most players. Take care copying his strokes. He also jumps off the ground.
Have you seen the Dan Brown video on the linear and circular forehands? Search-
I'm on your side forehand Dan Brown. He was working on a client's front knee pain and found getting his client's front foot off the ground was less stressful than his linear 'step forward' technique. The player gets entirely off the ground.
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Also, check the angle of your body tilted back using similar camera viewing angles. Compare to high level forehands.
You look to be using the off arm speed up and pull in very well. Recent posts on that also.
Better video- Get closer with the camera for a bigger image, orient the frame long side horizontally, video in bright direct sunlight. The camera's automatic exposure control will select a faster shutter speed and motion blur will be less (you are in shadow).