Journal of Applied Physiology
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J Appl Physiol 14: 813-816, 1959;
8750-7587/59 $5.00
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Capillary resistance and blood pressure changes associated with pain due to local cooling: cold pressor test

Gordon A. McMurray 1 and Louis B. Jaques 1

1 Department of Psychology and Department of Physiology and Pharmacology, University of Saskatchewan, Saskatoon, Saskatchewan, Canada

Measurements of capillary resistance and blood pressure were made before and after immersion of the right hand in ice water for 5 minutes. The capillary resistance rose sharply immediately after stress and remained elevated for over 3 hours, returning to normal in 21 hours, while the blood pressure response reached its peak in 90 seconds. A significant negative correlation was found between the maximum changes in capillary resistance and blood pressure.

Submitted on March 5, 1959






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