kmurdick wrote: ↑
Fri Jan 12, 2018 8:48 pm
Luis says. "I keep repeating inner tensions and control are by far more important than position itself. If you have a very relaxed wrist and economical finger movements, there will be no stress to the wrist or whatever."
It's not the wrist that you have to worry about with a bent wrist, it's the tendons going around a corner. It is settled science that a bent wrist will cause stress to the tendons. Whether this stress will result in permanent harm depends on your genetics.
IMO, the problem is that this is an oversimplification. I agree bending wrist has some amount of stress over tendons, but It is not a simple "on/off" state. The stress over the tendons in the wrist is proportional to amount of wrist bending, bend direction and inner muscle tension that push the tendons toward more friction enhancing the problem. The latter being regularly negleted and wrongly addressed.
Very tense wrist will generate tendon problems even with a straight wrist. Using more knuckle and less fingertip tension active more inner hand muscles and tendons that are not affected by wrist. It is much more complex than just saying wrist bending is the problem. I just say there are plenty of guitarists playing with some wrist bending at old ages without health problems and they are not superhumans with steel tendons. I don't thing that we would have such a body difference that would resist several years of playing while some others won't resist some months. To me it is more resonable that there is a technical way of doing it that won't generate tendon problems.
Straight wrist is a good remedial solution, IMO, because it is easy to do immediately, while retraining the muscles is a long way. So to someone with bad inner tensions and control I would encourage a strength wrist at first. But as technique advances, some bending won't be a problem and it is a way of checking tension relief. Finally, we have to adapt ourselves to the sound result we appreciate.