[hiAndrewQuinn]

> I changed the way I typed. I made sure to keep my hands and wrists relaxed, and swapped out stretching my fingers for keys with sliding my arms around… and it worked.

That's one of the biggest takeaways I had from playing bass guitar in high school, actually. If you can delegate the movement to a bigger muscle group, it's generally a good idea do so. Shoulder/back instead of arm, arm instead of hand, hand instead of finger...

[tetha]

Similar things in martial arts. A strong punch comes from the hips and the shoulder. The elbow and wrist just come along for the ride and need to stabilize to survive.