Diving then Hot-Tubing !!

[Uncle Pug]

Essentially, it increases the pressure gradient between the gasses in your blood and the surrounding air (in your lungs).

Why would that be undesirable?

 

[Charlie99]

My understanding was that hot tubs and hot showers were among the many, many things suspected to be potential contributing DCS factors. As with most of these, there doesn't seem to be any hard evidence to support the theory.

The rationale, as I understand it, is that very hot showers or hot tubs change the blood circulation patterns as the body opens up the surface capillaries to try and dump the heat. This reduces circulation to other parts of the body, thereby increasing DCS risk in those areas.

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My understanding is that the increased risk of DCS from exposure to cold water while diving is essentially the reverse scenario --- decreased blood flow in the skin and extremities.

 

[Phazeshyft]

I think its more than opening up capillaries, the skin is how we disipate heat, and absorb it, N2 like most gas increase in volume as temp rises i believe the relation is direct, if the gas dissolved in teh blood which happens to be closer to the skin in our extremities than other parts of the body, also these areas absorb or disipate heat faster due to low mass. so we jump in 105 to 110 degree water and all that gas expands and tries to get out too quick. Bad news bears.