EFFECTS OF EXERCISE-TRAINING ON HYPOXIA AND ANGIOTENSIN-II-INDUCED PULMONARY VASOCONSTRICTIONS

被引:19
作者
KASHIMURA, O
SAKAI, A
YANAGIDAIRA, Y
机构
[1] Department of Environment Physiology, Shinshu University School of Medicine, Matsumoto
来源
ACTA PHYSIOLOGICA SCANDINAVICA | 1995年 / 155卷 / 03期
关键词
HYPOXIA; PULMONARY ARTERIAL PRESSURE; PULMONARY CAPILLARY PRESSURE;
D O I
10.1111/j.1748-1716.1995.tb09976.x
中图分类号
Q4 [生理学];
学科分类号
071003 ;
摘要
The present study was undertaken to determine whether exercise-training for 6 weeks would inhibit pulmonary vasoconstriction induced by hypoxia in isolated, blood-perfused rat lungs. Hypoxic pulmonary vasoconstriction (HPV) and angiotensin II (AII)-induced pulmonary vasoconstriction were significantly less in the exercise-trained (ET) group than in the control (cent) group with all challenges. Normoxic pulmonary arterial and capillary pressures in the ET group were significantly lower than those in the cent group and capillary presser response to hypoxia was less in the ET group than in the cent group. In conclusion, it appears that HPV and AII-induced vasoconstrictions can be reduced by exercise-training, because it would seem that exercise-training repeated responses to increased shear-stress resulting from elevated blood flow in pulmonary vessels.
引用
收藏
页码:291 / 295
页数:5
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