But here's some interesting tips that I noticed that might be helpful:
Sit Far Enough Away.
Distance to the piano is crucial to pain-free playing. Most people sit too close to the piano and wrongly establish this as the correct distance. Notice if you keep raising your shoulders or your wrists when you play. This is usually because you are sitting too close and your own body simply blocks the mobility of the arms. The best guideline here is to see if your elbows can touch one another when your hands are placed on the white notes directly in front of you. If not, move back.
Sit So Your Elbows are Just Below Key Level.
Height is also extremely important. Most people sit too high or too low. We really have to be more respectful of our natural body-type. Are you long-legged or long-torsoed? Usually women have long legs and a short torso, and men have the reverse. The problem is that standard piano bench height is for the short-torso person. This means that the person with a long waist will tend to tower over the piano. Why is this bad? It means that the elbows are positioned above the key level when they actually should be positioned slightly below the key level. The reason for this is that the hand, wrist and forearm should all be in a straight line, to allow the least friction on the tendons of the forearms which actually control the fingers. (See Carpal Tunnel Syndrome Prevention Tips.) People who sit too high, too low, or with a “low wrist” or with a “high wrist” usually acquire pain and ultimately tendinitis, or carpal-tunnel syndrome. This is really so unnecessary! The solution is to get an adjustable bench, or sit on a chair, so that the correct height is achieved. Also, if you perform standing, adjust the angle of the keyboards to maintain the optimal angle, so that the hand, wrist and arm are all in a straight line, regardless of the height of the keyboard itself. In otherwords, tilt the lower keyboard with the keys facing at an upward angle. Tilt the higher keyboard with the keys facing at a downward angle.
Relax Between the Notes.
Tension build-up or “cumulative tension” in the muscle system can be another cause of injury. The common practive of “practicing slowly and gradually increasing the tempo” can actually cause injuries. This is because when you practice slowly, you inadvertantly hold your hand with more tension than necessary. When you speed up, this tension is learned in! An alternative approach is to practice short groups of notes. This could be 2, 3, 4, 6, etc. notes in sequence. Play the notes as fast as comfortable and then pause. During the pause, EXAGGERATE the relaxation feeling by letting the weight of the arm hang the finger on the last note of the sequence. Wait about 5 seconds and then repeat the sequence or go onto the next sequence. Eventually, all this relaxation because learned-in and will remain when you attach all the pieces together, in an effortless manner.
Softer Equals Faster.
Many injuries lately are specific to people who play electronic keyboards. One would think that these lighter-action keyboards would be easier to play, but in fact, they are harder. This is because most people have a tendency to press harder than they would on a naturally-weighted keyboard to overcompensate for the lack of resistance. Also, we get fooled by the artificial sound levels. Because of the electronic aspect of the instrument, we become reliant on the actual volume versus the perceived volume. If we are recording, for example, the ultimate dynamic level may be very loud, but to us as performers, in our monitor, it may seem very soft. So we instinctively try to play harder to create a louder sound, when it really doesn’t help. Meanwhile, the louder we play, the stiffer our fingers become. The stiffer our fingers become, the slower we play and the more we push. The more we push, the more pain and damage we inflict on ourselves. The solution here is to keep mentally reminding ourselves as we play that “softer equals faster.” This keeps the muscle system very relaxed. Let them set the levels in the mix.