抄録
Four divers were compressed with He-O2 (PO2= 0.3 bar) at 25m/h to 300m(31 ATA). During the compression, all the divers answered a questionnaire and kept a personal log of their signs and symptoms including the time of onset and site of any arthralgias and fatigues. Symptoms of fatigue which include drowsiness, brain muddled and rigid or clumsy in motion appeared in all divers from 100m to 300m. The arthralgia and myalgia were deflnitely present but mild from a depth of 150m. At the same depth, the tremor appeared practically imperceptible. However, the symptom of tremor was not complained during the compression from 200m to 300m in the two divers (A and C). The nausea and dizziness associated with high pressure nervous syndrome (HPNS) were complained barely perceptible or minimal from a depth of 250m in the divers A, C and D. At the depth of 300m, these symptoms were kept on and the physical condition of the divers prevented them from working immediately. The feeling of adaptation in this environment was answered after 24h (diver D), 32h (diver A and C) and 80h (diver B) on the bottom. These results showed that there was a signiflcant interindividual variation in susceptibility to subjective signs and symptoms.
