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J Appl Physiol 17: 441-443, 1962;
8750-7587/62 $5.00
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Effect of oxygen inhalation on manual performance in the cold

D. M. MacCanon 1, D. D. Eitzman 1, and J. E. Abbott 1

1 Department of Physiology and Pharmacology, State University of South Dakota School of Medical Sciences, Vermillion, South Dakota; and Division of Experimental Cardiology, The Chicago Medical School, Chicago, Illinois

The effect of oxygen inhalation on block-stringing performance of 12 subjects was studied at hand temperatures of 32.7 C in a control room environment of 29 C and after cooling the hands to 16.0 C in a cold (5 C) environment. A similar slight but significant improvement in manual performance accompanied oxygen inhalation under both conditions. This is interpreted as indicating the existence of suboptimal neural and/or muscular activity during air breathing in both situations. If hand cooling had affected the same neural and/or muscular elements as oxygen, lowering activity even further from the optimal level, this should have exaggerated the O2 effect. In view of the absence of such a response, it would seem that hand cooling and oxygen influence different neural and/or muscular elements, and their effects on manual performance are not directly related.

Submitted on August 31, 1961






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