Autor: |
Iseev LR, Poliakov VN, Chadov VI |
Jazyk: |
ruština |
Zdroj: |
Kosmicheskaia biologiia i aviakosmicheskaia meditsina [Kosm Biol Aviakosm Med] 1988 May-Jun; Vol. 22 (3), pp. 75-82. |
Abstrakt: |
442 altitude experiments on 40 volunteers were performed. Gas bubbles in venous blood were detected using an ultrasonic Doppler system functioning in a continuous mode at a frequency of 5 MHz. The threshold of bubble formation was identified in 31 test subjects and that of emergency of altitude-decompression disorders, in 28 test subjects. Individual resistance to decompression-induced bubbles was revealed. It was shown that the thresholds may vary with time, in the head-down position and in the head-down position combined with exercises. A correlation was established between the rate of intravascular bubble formation and the frequency of altitude-decompression disorders. |
Databáze: |
MEDLINE |
Externí odkaz: |
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