[Acoustic and spirometric indices of the external respiration function of divers using closed oxygenous systems].
The influence of asingle diving in equipment of the closed type using respiratory gas mixture with a risen concentration of oxygen on the external respiration function of divers having small experience of underwater works is investigated by means of a tracheal forced expiratory noise analysis. 16 divers and a control group consisting of 13 men (with the age from 19 to 24 years) were inspected. Duration of tracheal forced expiratory noise was measured. Spirographic indices were registered. 10 divers were inspected in dynamics - before diving and immediately after it. T, FVC and FEV1 changes were tested. Significant differences in T and spirographic indices among groups of divers (before diving) and the control one were not detected. On the whole after diving the only significant reduction of indices in the group of divers was connected with FEV1. Significant individual dynamics of spirographic indices was not found. 2 examined divers showed considerable increase in T reflecting bronchial patency aggravation.
Pochekutova
I A
IA
Korenbaum
V I
VI
Agapov
Ia V
IaV
D000162:Acoustics; D000328:Adult; D004242:Diving / Q000502:physiology*; D006801:Humans; D008297:Male; D010100:Oxygen / Q000008:administration & dosage; D015656:Respiratory Mechanics / Q000502:physiology*; D013147:Spirometry; D014132:Trachea / Q000502:physiology
D010100:Oxygen