Buzzacott Peter, Papadopoulou Virginie, Baddeley Adrian, Petri Nadan M, Lind Folke
Université de Bretagne Occidentale, Brest, France; School of Sports Science, Exercise and Health, University of Western Australia, Perth, Australia.
Int Marit Health. 2015;66(1):36-42. doi: 10.5603/IMH.2015.0010.
Deep decompression stops are increasingly common in recreational technical diving. Concerns exist that they shift decompression stress back into slower tissues. A diver recorded an exceptional exposure dive, with deeps stops, on a commercially available dive computer.
Using the R package SCUBA tissue inert gas pressures in 17 Bühlmann (ZH-L16A) compartments were estimated from the dive computer recorded profile. The RGBM dive plan generated by the diver's software was similarly interrogated, as was a third profile with reduced deep stops generated using the VPM-B/E model.
In this dive the combination of 5 gas switches appeared to ameliorate the effect of deep stops from 76 m depth.
A higher-than-anticipated inert gas content in a decompression mixture, coupled with climbing 200 stairs post-decompression, appear possible risk factors for decompression sickness. Nonetheless, the physiological effect of deep decompression stops during exceptional exposure, even when diving with gas switches, remains urgently to be determined to improve safe decompression following exceptional exposures. Until algorithms utilising deep decompression stops are validated with human data, dive profiles incorporating deep decompression stops should be considered experimental.
在休闲技术潜水活动中，深度减压停留越来越常见。人们担心这会将减压压力转移回速度较慢的组织中。一名潜水员在一台市售潜水电脑上记录了一次包含深度停留的特殊暴露潜水。
使用R软件包，根据潜水电脑记录的潜水剖面估算了17个 Bühlmann（ZH-L16A）隔室中的组织惰性气体压力。对潜水员软件生成的RGBM潜水计划进行了类似的分析，同时也分析了使用VPM-B/E模型生成的减少深度停留的第三个剖面。
在此次潜水中，5次气体转换的组合似乎减轻了来自76米深度的深度停留的影响。
减压混合物中高于预期的惰性气体含量，以及减压后攀爬200级楼梯，似乎是减压病的可能风险因素。尽管如此，在特殊暴露潜水期间深度减压停留的生理效应，即使在使用气体转换潜水时，仍亟待确定，以改善特殊暴露后的安全减压。在利用深度减压停留的算法通过人体数据验证之前，包含深度减压停留的潜水剖面应被视为实验性的。
