Falling backwards when forehand looping against backspin
This is a common problem with a rather easy fix. Many players go off balance and fall backwards when looping against backspin with their forehand. Why? It's almost always because they are standing too far from the table. And so they have to reach forward to contact the ball. This throws their weight slightly forward; to compensate, you have to lean backwards. You lose control, power, and are off-balance for the next shot.
How do you fix this? Stand closer to the table, and rotate more sideways when you loop. The contact point should be the same as before, but relative to your body, it's farther back in your hitting zone, often in front of the back leg. This allows you to rotate in a circle as you loop, creating torque and maintaining your balance even during your most powerful loops.
Yesterday, during the Christmas Camp at the Maryland Table Tennis Center, I found at least five players who were doing this. (I also had another chocolate candy "giveaway" - hit the bottle on the table, and get a delicious truffle! I gave out about 50 of them. I think we're the most popular table tennis camp in American right now.)
Table Tennis Training Stage IV: Putting It All Together