Abstract
Introduction A functional range of forearm rotation has been stated to be 50° of pronation and supination (total arc of 100°),1 with a more recent suggestion that contemporary tasks need 65° of pronation and 75° of supination.2 Our research involved 24 healthy university students, each subjected to objective hand testing with the Perdue, Jebsen, and Minnesota Manual function tests before and after the application of a long-arm cast brace that fixed the forearm rotation alternatively in 45° of pronation, 45° of supination, or neutral. The varied positional casts were worn for one day in each position and at removal, a subjective functional evaluation was obtained.
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