Table 1.

Attributes (8 joints) and levels (3 degrees of contracture) used in the DCE design

Attributes	Levels
Joint #1: index finger, PIP joint	0, 45, 90
Joint #2: index finger, MCP joint	0, 45, 90
Joint #3: middle finger, PIP joint	0, 45, 90
Joint #4: middle finger, MCP joint	0, 45, 90
Joint #5: ring finger, PIP joint	0, 45, 90
Joint #6: ring finger, MCP joint	0, 45, 90
Joint #7: little finger, PIP joint	0, 45, 90
Joint #8: little finger, MCP joint	0, 45, 90