Are multiple dives more risky for DCS than just 1 dive?

[Kendall Raine]

Also found this study suggesting 2 minutes of mini trampoline jumping pre-dive reduced VGE. n=8 so who knows. Not as whacky as using dark chocolate as a pre-conditioning regime and certainly more effective.

Mini Trampoline, a New and Promising Way of SCUBA Diving Preconditioning to Reduce Vascular Gas Emboli? - PubMed

<span><b>Background:</b> Despite evolution in decompression algorithms, decompression illness is still an issue nowadays. Reducing vascular gas emboli (VGE) production or preserving endothelial function by other means such as diving preconditioning is of great interest. Several methods have been...

pubmed.ncbi.nlm.nih.gov

Preconditioning to Reduce Decompression Stress in Scuba Divers - PubMed

This experiment, which had the same subjects perform all control and preconditioning dives in wet but completely standardized diving conditions, demonstrates that endothelial dysfunction appears to not be solely related to VGE.Germonpré P, Balestra C. Preconditioning to reduce decompression...

pubmed.ncbi.nlm.nih.gov

 

[dmaziuk]

Also found this study suggesting 2 minutes of mini trampoline jumping pre-dive reduced VGE. n=8 so who knows. Not as whacky as using dark chocolate as a pre-conditioning regime and certainly more effective.

Oi! I resemble that remark! Google "endothelial protection dark chocolate" and be enlightened: there is at least one article in PubMed specific to diving, but plenty other studies of effect of cocoa flavonoids on endothelial function -- including inflammatory response which is what presumably nitrogen bubbles cause. I my chocolate and I'll take if over 99 Surfing GrapeFruits any day.

 

[Kendall Raine]

Oi! I resemble that remark! Google "endothelial protection dark chocolate" and be enlightened: there is at least one article in PubMed specific to diving, but plenty other studies of effect of cocoa flavonoids on endothelial function -- including inflammatory response which is what presumably nitrogen bubbles cause. I my chocolate and I'll take if over 99 Surfing GrapeFruits any day.

Excellent! Go for it. Note, however, that dark chocolate did not seem to reduce reduce VGE. But anything that reduces inflammation is good.

 

[Johnoly]

Excellent! Go for it.

Agree with @Kendall Raine . The US Navy has tried every whacked crazy idea to reduce DCS/injury/etc in diving over the past century. They are not giving navy seals dark chocolate. But do your own independent testing and maybe you'll find something.

 

[kissonerga.ccr]

Also found this study suggesting 2 minutes of mini trampoline jumping pre-dive reduced VGE. n=8 so who knows. Not as whacky as using dark chocolate as a pre-conditioning regime and certainly more effective.

Mini Trampoline, a New and Promising Way of SCUBA Diving Preconditioning to Reduce Vascular Gas Emboli? - PubMed

<span><b>Background:</b> Despite evolution in decompression algorithms, decompression illness is still an issue nowadays. Reducing vascular gas emboli (VGE) production or preserving endothelial function by other means such as diving preconditioning is of great interest. Several methods have been...

pubmed.ncbi.nlm.nih.gov

Preconditioning to Reduce Decompression Stress in Scuba Divers - PubMed

This experiment, which had the same subjects perform all control and preconditioning dives in wet but completely standardized diving conditions, demonstrates that endothelial dysfunction appears to not be solely related to VGE.Germonpré P, Balestra C. Preconditioning to reduce decompression...

pubmed.ncbi.nlm.nih.gov

Wow. Mini-trampoline, eh? Got to love science. From now on, I‘ll have strong bias in favor of dive shops that make these available as standard equipment. That, and dark chocolate!

One thing not quite clear from the study is whether jumps must be performed fully geared up. If so, then how to best secure stage tanks to the jumping diver, and whether BM is better than SM. Also, would synchronous jumping by a dive team produce better results. So much more to investigate