Marroni A, Zannini D
Minerva Med. 1981 Dec 30;72(52):3567-72.
Ninety-seven compressed air divers at depths of 20 to 52 msw were done. Every dive reached a tissue nitrogen saturation level greater than or equal to M value according to U.S. Navy decompression schedules and respected all prescribed decompression stop. Dives were divided in two groups according to the speed of ascent:--1st group: 33 dives (18 simulated, 15 open water) with ascent at 18 msw/min. for the first half of the distance and 10 msw/min. for the second half. No work on the bottom. Average ascent rate 14 msw/min. This profile was due to the flow limits of the outlet of our chamber during the second part of the ascent, and it was repeated in open water diving.--2nd group: 64 dives (4 simulated, 60 open water) with linear ascent at 10 msw/min. Half the open water dives were repetitive within 4 hours from the first one. Medium to heavy work on the bottom. Ultrasound Doppler bubble detection at rest and after exercise was performed at five minutes intervals and during 40 minutes after surfacing.
对97名在水下20至52米深度的压缩空气潜水员进行了研究。根据美国海军减压时间表，每次潜水的组织氮饱和度水平均达到或超过M值，并严格遵守所有规定的减压停留要求。潜水根据上升速度分为两组：——第一组：33次潜水（18次模拟潜水，15次开放水域潜水），在前半段距离以18米/分钟的速度上升，后半段以10米/分钟的速度上升。在水底不进行作业。平均上升速度为14米/分钟。这种剖面是由于我们潜水舱出口在上升第二部分的流量限制造成的，并且在开放水域潜水时重复出现。——第二组：64次潜水（4次模拟潜水，60次开放水域潜水），以10米/分钟的线性速度上升。一半的开放水域潜水在第一次潜水后的4小时内重复进行。在水底进行中度至重度作业。在休息时以及运动后，每隔五分钟进行一次超声多普勒气泡检测，并在浮出水面后的40分钟内持续检测。
