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Cutaneous blood flow rate in areas with and without arterovenous anastomoses during exercise
Author(s) -
Midttun M.,
Sejrsen P.
Publication year - 1998
Publication title -
scandinavian journal of medicine and science in sports
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.575
H-Index - 115
eISSN - 1600-0838
pISSN - 0905-7188
DOI - 10.1111/j.1600-0838.1998.tb00173.x
Subject(s) - blood flow , washout , medicine , anastomosis , thumb , anesthesia , surgery
In 10 healthy subjects, skin blood flow rate was measured in the thumb pulp by the heat‐washout method, and in the skin fold between the thum and the forefinger by the 133 Xe‐washout method. The former but not the latter skin area contains arterovenous anastomoses (AVAs). In response to 10 min moderate cycle exercise, an instantaneous decrease in flow was seen in the thumb pulp followed after about 4.6 min by an increase to resting levels. Blood flow in the skin fold remained constant. The results indicate that the initial reduction in blood flow rate and later increase observed in the finger at the onset of moderate exercise take place in the AVAs and not in the capillaries.