The wrist is the last joint in the arm with which we can position the hand. As the wrist moves the hand the muscles that cross it become shorter and longer. When the wrist is maintained in other than a neutral position these muscles rest at lengths apart from their optimum. When they have to work in these compromised positions they use a lot more energy, they fatigue and are more susceptible to overuse injuries.
This section will look at all of the factors at play in this important dynamic.