Deco Theory and Physiology Lecture (UK)

**neilh** · December 19th, 2006, 10:59 AM

Folks, this is not a DIR-oriented lecture in anyway - but Mark Powell is giving a deco theory and physiology lecture in Nottingham in Feb. Might be of interest to some on here:

Feb 24th Decompression Theory and Physiology - YD Dive Forums & Scuba Community

(Apologies for the cross-posting, but given the interest in the deco threads I figured there might be some additional interest over here

)

Sterny · December 19th, 2006, 12:56 PM

Always interested to hear another perspective on this - I'm planning to go. Anyone else?

David

**neilh** · December 19th, 2006, 03:04 PM

Quote: (Originally Posted by Sterny)

Always interested to hear another perspective on this - I'm planning to go. Anyone else?

David

I'm hoping to get along to it, not booked a place yet tho!

FGYT · December 31st, 2006, 12:49 AM

Quote: (Originally Posted by Sterny)

Always interested to hear another perspective on this - I'm planning to go. Anyone else?

David

ive attended this lecture in november it was very interesting and went though how many Deco plans are done

well worth the trip

Martin Burnard · December 31st, 2006, 06:44 PM

Just done my TDi Trimix course with Mark.

I think over the course of the week we had his lecture,

Thoroughly recommended.

Mark Powell · February 13th, 2007, 01:55 PM

Thanks for the feedback FGYT and Martin.

Looking forward to seeing all of you that have booked on the 24th. For anyone else interesteds there are still spaces available.

**neilh** · February 14th, 2007, 01:07 AM

I'll be heading down from the Barnsley area if anyone needs a lift

Sterny · March 2nd, 2007, 12:24 PM

A slightly belated report back from this lecture last Saturday 24th Feb '07 in Nottingham, UK.

It was a very well presented and informative day, and I it was interesting to have the opportunity to hear the theory and history of deco models and physiology in a little more depth than is appropriate to cover on e.g. a GUE Fundamentals or a TDI AN&DP course.

I learned quite a lot of things I hadn't known before (including a very well explained session on gradient factors and how dive planning software uses them, combined with Haldane/Buhlmann multi-cell saturation models, to arrive at an ascent profile, for nitrox or trimix), as well as hearing about a fair bit of stuff I already knew, but which was presented very well and was consistent with what I've been taught elsewhere.

Mark Powell not only knows the subject well and has clearly read a much greater proportion of the literature than most of us are ever remotely likely to, he has also developed an exemplary course to explain his material in a way that non-scientific people (like most divers) can easily understand. I only remember seeing one (simple) equation during the entire course - there's a lot more charts and visual representations than text, which makes it easily digestible by people who are put off by numbers or just don't want to deal with page after page of text on a Saturday morning after not enough sleep!

From a DIR perspective, it was good to hear about the whole range of approaches people use for deco, including using gasses that would be non-standard for DIR diving, in order to further understand what's going on in the body.

Recommended!

**neilh** · March 2nd, 2007, 02:31 PM

I'd second that, a really interesting day with lots to think about. Even though the course was pitched at the right level for me, the draft manuscript on the CD Mark gave out goes into much more detail and I'm having fun working through that.

I think I'm starting to understand what gradient factors are all about now

December 19th, 2006, 10:59 AM	#1 (permalink)
neilh (Online) Haemoglobin on the bus... Join Date: Nov 2005 Location: Barnsley, UK Posts: 1,900	Deco Theory and Physiology Lecture (UK) Folks, this is not a DIR-oriented lecture in anyway - but Mark Powell is giving a deco theory and physiology lecture in Nottingham in Feb. Might be of interest to some on here: Feb 24th Decompression Theory and Physiology - YD Dive Forums & Scuba Community (Apologies for the cross-posting, but given the interest in the deco threads I figured there might be some additional interest over here )

December 19th, 2006, 12:56 PM	#2 (permalink)
Sterny(Offline) New Member Join Date: Nov 2005 Location: The limpid tropical lagoons of Ealing, West London Posts: 550	Always interested to hear another perspective on this - I'm planning to go. Anyone else? David __________________ "I thought I had a great idea today, but it never really took off. In fact, it didn't even get on the runway. I guess you could say it exploded in the hangar." - Bill Watterson, Calvin and Hobbes

December 31st, 2006, 06:44 PM	#5 (permalink)
Martin Burnard(Offline) New Member Join Date: Nov 2005 Location: Plymouth, UK Posts: 580	Just done my TDi Trimix course with Mark. I think over the course of the week we had his lecture, Thoroughly recommended. __________________ I once enjoyed a sado-masachistic frenzy of total tintintabulation leading to a state of metampsychosis... or did I make that up? www.bananafrogcars.co.uk

February 13th, 2007, 01:55 PM	#6 (permalink)
Mark Powell(Offline) New Member Join Date: Jan 2006 Location: Guildford Posts: 49	Thanks for the feedback FGYT and Martin. Looking forward to seeing all of you that have booked on the 24th. For anyone else interesteds there are still spaces available. __________________ Mark Powell Dive-Tech: Technical Diver Training http://www.dive-tech.co.uk Visit the online technical diving shop: Analox, Fourth Element, Halcyon and Apeks

March 2nd, 2007, 12:24 PM	#8 (permalink)
Sterny(Offline) New Member Join Date: Nov 2005 Location: The limpid tropical lagoons of Ealing, West London Posts: 550	A slightly belated report back from this lecture last Saturday 24th Feb '07 in Nottingham, UK. It was a very well presented and informative day, and I it was interesting to have the opportunity to hear the theory and history of deco models and physiology in a little more depth than is appropriate to cover on e.g. a GUE Fundamentals or a TDI AN&DP course. I learned quite a lot of things I hadn't known before (including a very well explained session on gradient factors and how dive planning software uses them, combined with Haldane/Buhlmann multi-cell saturation models, to arrive at an ascent profile, for nitrox or trimix), as well as hearing about a fair bit of stuff I already knew, but which was presented very well and was consistent with what I've been taught elsewhere. Mark Powell not only knows the subject well and has clearly read a much greater proportion of the literature than most of us are ever remotely likely to, he has also developed an exemplary course to explain his material in a way that non-scientific people (like most divers) can easily understand. I only remember seeing one (simple) equation during the entire course - there's a lot more charts and visual representations than text, which makes it easily digestible by people who are put off by numbers or just don't want to deal with page after page of text on a Saturday morning after not enough sleep! From a DIR perspective, it was good to hear about the whole range of approaches people use for deco, including using gasses that would be non-standard for DIR diving, in order to further understand what's going on in the body. Recommended! __________________ "I thought I had a great idea today, but it never really took off. In fact, it didn't even get on the runway. I guess you could say it exploded in the hangar." - Bill Watterson, Calvin and Hobbes Last edited by Sterny; March 2nd, 2007 at 12:27 PM.

December 19th, 2006, 03:04 PM	#3 (permalink)
neilh (Online) Haemoglobin on the bus... Join Date: Nov 2005 Location: Barnsley, UK Posts: 1,900	Quote: (Originally Posted by Sterny) Always interested to hear another perspective on this - I'm planning to go. Anyone else? David I'm hoping to get along to it, not booked a place yet tho!

December 31st, 2006, 12:49 AM	#4 (permalink)
FGYT(Offline) New Member Join Date: Jan 2006 Location: Bournemouth Posts: 23	Quote: (Originally Posted by Sterny) Always interested to hear another perspective on this - I'm planning to go. Anyone else? David ive attended this lecture in november it was very interesting and went though how many Deco plans are done well worth the trip

February 14th, 2007, 01:07 AM	#7 (permalink)
neilh (Online) Haemoglobin on the bus... Join Date: Nov 2005 Location: Barnsley, UK Posts: 1,900	I'll be heading down from the Barnsley area if anyone needs a lift

March 2nd, 2007, 02:31 PM	#9 (permalink)
neilh (Online) Haemoglobin on the bus... Join Date: Nov 2005 Location: Barnsley, UK Posts: 1,900	I'd second that, a really interesting day with lots to think about. Even though the course was pitched at the right level for me, the draft manuscript on the CD Mark gave out goes into much more detail and I'm having fun working through that. I think I'm starting to understand what gradient factors are all about now