There are 4 main ways to get more power to One Handed Backhand.
Knowing from physics that power depends on speed and mass,
we can for the beginning, as the first step, use the logic
in order to improve the power.
For this part we do not need tennis knowledge.
So, what can you do to improve power of One Handed Backhand?
1. Fitness exercise program with professional person even without tennis
technique will increase your power and speed.
Shoulder muscles should be in focus.
Now, lets mention what tennis technical elements must be improved:
2. Back swing must start high / higher in order to use the gravitation as
our big help to the beginning “energy” i.e. speed.
3. Pulling action from non dominant hand makes the important “catapult” elastic force.
The same arm is important to do the opposite direction movement in order to protect
our lower torso i.e. lumbar body part.
4. Bigger “step (in)” and stronger “push” from back lag is another key element
where our body weight shifts toward the ball.
5. The racket weight is also important and that is the reason why aggressive players and big hitters always use more heavy rackets.
This is easy to check. Take a light type of racket, lets say 260 gr, and take one of 300 gr. If you have the gadget to measure the ball speed, you will see that with the same force, heavier racket will produce more ball speed.
6. The string tension also contributes to the power i.e. ball speed.
If you put less tension, strings will be with more elastic energy.
Also, it is good to know that it is more difficult to control the ball this way..
