I saw your video on my laptop at work and gave you my initial feedback ... I saw NL's comment and I was a little doubtful whether I did not see enough and then saw the others comment as well on the camera angle etc. ...
So just of curiosity , came home and casted your video to my 50" TV and checked out the whole video .. and here is what I saw , again as you know I am not a certified coach or have 0 experience in professional coaching .. but I am not an "arm chair critic" that I can assure you
...
1. The forehand movement is not co-ordinated enough to generate enough power at the proper time ... thats my feeling when I see you miss so many loops off high backspin balls ... my feeling from what I saw is that you are rotating your waist back alright but leading with your arm and shoulder ... the waist movement is more of a follow through .. .... meaning difference in the start of the uncoiling movement of the waist and the forearm snap is generally is very accentuated when you loop against long backspin the way you are attempting .. slow spinny version of the loop.. I simply could not see it ...
the way I see loop is ..
step 1 . you turn your waist back
step 2. you generate power from the waist uncoiling
step 3. midway through your waist uncoiling you almost trigger your forearm snap with the waist
step 4. then you release the power when you grab the ball .. the core releases just before it comes back to the rest position and the forearm snap continues through the ball ..
don't know if this the right way to represent it in terms coaching somebody but thats the way I feel when I loop .. and when I see you I see the core not generating the power .. rather the shoulder doing it and even though the start and end point looks like a proper loop , the waist almost follows the shoulder back to position .. again I might be wrong and you will do better to wait for a clear video of doing these strokes individually and having more people comment on it ..
the other things I feel might help you ...
1. Like OSP said , I too feel that your arm and may be in general your body is not relaxed . Evidence majority long / half long serves except the side topspin serve on your backhand which too is not very short but is double bounce on the white line for the most part .... for now it might be helpful to try and relax your forearm and not try tightening it too much to generate power ... once your timing becomes more precise and you can work on using that technique ... I know Der feels otherwise .. but I am a proponent of relax first .. tighten later
.. one of the things I picked up from watching youtube videos is to have a routine to almost shake the wrist loose before you receive serves .. kind of reminds me to relaxed when receiving serves
2. this one is a far stretch .. but I see you are trying to emulate the pro players in staying low before initiating your rountine of getting to receive the serve ... well this is extremely helpful when some have real quality serves and if its otherwise difficult to catch the spin variation .. but from experience what I have seen is that for the most part its better to avoid the up and down movement with the back .. instead if you remain at your optimal crouching position and just have a small reset movement before receiving the serve it should help .. what I do personally do is to copy the He Zhiwen's old man shuffle than the more fancy Yangyang young split step .. seems just easier for a heavier guy with bad knees and does the job for the most part .....
Now the part that impressed me most that you probably can read the length of the ball well .. I was most impressed your change from going into a push and not doing it and rather looping the half long ball .. that is not easy to do ... so I commend you on that ....
In case you had some lessons from a coach , it might be helpful to go back to him / her periodically to get feedback on your form ... nothing is better than that .... you have come to the next best place TTD Daily Chat thread anyways ...
well enough Friday night table tennis chatter for me .. take it all with a large dose of salt .. I am tired from all the table tennis tonight and almost sleepwalking now through the rest of the post ...
hopefully you will get better and more useful feedback from others .. at the end of the day you should be the sole judge of what seems right or wrong .. and which advice to adapt and which one should be helpful to you .. so good luck in your table tennis journey ...
I saw a few minutes ... you need to work on the forehand loop , try to lead with the left hip and keep your forearm loose ... right now you are trying to use too much shoulder .. you might find the videos on this thread useful .. especially if you grasp what the coaches are trying to teach here ...
https://www.tabletennisdaily.com/fo...-to-improve-Topspin-by-Chinese-Coach-s-lesson