Manual Dexterity in the Cold

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Abstract
The effects of the cold on manual dexterity were studied by relating performance time on the Minnesota Rate of Manipulation Test to air temperature and velocity, windchill, mean surface skin temperature, digital temperature of the working hand and rate of digital cooling using data from 530 subjects sorted into 14 different combinations of air temperature and wind for an exposure period of approximately 60 minutes. Air temperature and windchill were found to increase performance time significantly; wind velocity did not have a significant effect by itself; mean surface skin temperature was slightly, but significantly, inversely correlated with performance time only for nude men; digital cooling rate and digital temperature were not demonstrated to be related to performance time. Submitted on May 17, 1957

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