a)
b)
c)
Figure 2 . Four testing conditions of the hand for a subject wearing a commercial wrist guard with a ) no volar splint (WG- condition), b) a volar splint (WG+ condition) and a volar splint + a 13 mm thick Sorbothane palm protector inside the wrist guard (WGS condition, not shown), and c) a volar splint splints and an air cell between the volar splint and the hand (WGA condition).