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Technical scuba diving and mandatory decompression stops [click here to return to previous page]

Technical dives may alternatively be defined as dives with durations long enough to require mandatory decompression stops, which may optionally be performed using enriched oxygen breathing gas mixtures such as nitrox or pure oxygen. This definition is derived from the fact that metabolically inert gases, such as nitrogen and helium, in the diver's breathing gas are absorbed into body tissues when breathed under high pressure. These dissolved gases must be allowed to release gradually from body tissues to prevent decompression sickness, also known as the bends. This form of diving implies a much larger reliance on redundancy and training since it is no longer physiologically safe to make a direct ascent to the surface in the case of any problems underwater.

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Reference material for this scuba diving related informational article: wikipedia – the free online encyclopedia, scuba diving category

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