i tried to fly out today and i ended up being bent

[Blue Sparkle]

With the tables time starts when you start descent not when you reach bottom. Time stops when you start ascent.

Sent from my MB860 using Tapatalk

Oops, sorry for the confusion; I mis-spoke. :blush:

What I was trying to get at was this: Does the OP's computer measure the dive time like mine does (entire dive from entering water to re-surfacing)? I realize he said "BT," but I wanted to double check, since my computer measures total dive time (as does my usual dive buddy's).

 

[Thalassamania]

Bottom Time stops when you begin a continuous (uninterrupted) ascent to the surface at a specified rate.

 

[Blue Sparkle]

Yes, sorry, I mis-spoke in my other post. What I was trying to get at is that my computer counts "dive time" and not "bottom time" as we used to. It starts when I get wet, and ends when I re-surface. So I was wondering how the OP's computer did it (or if he was subtracting something to get his "BT").

I'm trying to compare my dives to his, and so I want to see what his "BT" actually reflects so that I am comparing apples to apples.

Blue Sparkle

 

[iztok]

Difference between the tables and computer is that tables (in general) assume square profile and computer tracks current situation and calculates loading based on that. So in general what you will see is that computer would show longer time but less gas loading than the tables.

In practice for me when I run the tables for practice or in class (as part of assisting the instructor) I use max depth and time displayed on my computer which means from start of descent to completed ascent. I don't bother subtracting time to account for (longer) ascent. I am not sure how others are doing.

 

[terrylowe]

Feel free to show me any medical scientific research showing that homeopathic or any other "alternative" medicine works. As far as therapeutic index is concerned, attempts of deliberate overdosing by severe margin have been done during live audience (and "mass suicide" bu homeopathic "medicine" as well) and all are still well. Reason is very simple, homeopathic medicine doesn't work any better than placebo does.

I did a quick google search...I didn't pull the original scientific documents, but you get the point.

• ScienceDaily (Oct. 13, 2008) — New research provides support for the use of St. John's wort extracts in treating major depression. A Cochrane Systematic Review backs up previous research that showed the plant extract is effective in treating mild to moderate depressive disorders.
  
• ScienceDaily (Oct. 7, 2010) — A systematic review of research into the use of nutritional supplements for the treatment of anxiety disorders has found strong evidence for the use of extracts of passionflower or kava and combinations of L-lysine and L-arginine.
  
• Glucosamine/chondroitin Arthritis Intervention Trial (GAIT) 2008 - "For a subset of participants with moderate-to-severe pain, glucosamine combined with chondroitin sulfate provided statistically significant pain relief compared with placebo—about 79 percent had a 20 percent or greater reduction in pain versus about 54 percent for placebo."

I personally want to know what alternative/homeopathic/other medications my patient is taking because they do indeed have side effects from these "herbs". My patients seem to often follow the mantra, "If one pill works, then three must REALLY work." I wholeheartedly disagree with you....these are not diluted or weak. The problem is that we don't know WHAT you'd be getting at a "set" dose in this uncontrolled industry. Some of them have quite potent and dangerous side effects (as we are gradually finding out).

• Side effects of high dose Vitamin A >> "fatigue, irritability, mental changes, anorexia, stomach discomfort, nausea, vomiting, mild fever, excessive sweating, and many other side effects." How about a feverish, fatigued, irritable dive buddy? One that barfs all in his regulator at 60 feet?
• Ginger (I've used this one for sea sickness before)>>>"may potentiate the effects of blood thinners, barbiturates, beta-blockers, insulin, and other diabetes medications." I don't want to get into the dive-with-diabetes debate, but taking "God knows what" dose of ginger to help sea sickness can potentiate a diabetic's medications....making them more likely to have low sugar while diving....YIKES.
• Ephedra >> "Headache; feeling nervous; trouble falling asleep; high blood pressure or uneven heartbeat; seizures; heart attack; stroke" Stroke? STROKE? Stroke mimics DCS mimics stroke....
• St John's Wort. People will take this right along with their prozac/zoloft/paxil and think nothing of it. My my my-- the reaction is incredible...I've only seen a moderate reaction once and hope to never see it again. Seratonin syndrome can have many similar symptoms to DCS.

Point is, we don't know how much of what people are taking. We are just beginning to understand some of the side effects of these alternative remedies. We have no clue what the potential side effects of these could be when you add the physical and mental stress of diving. I do know that people spend billions a year on them thinking that they are safe because they are "natural". Since they are "safe", my patients take too much of it...and they certainly will not mention it if not directly asked about it.

 

[iztok]

What you mentioned are not alternative medicine. Supplements and active ingredients of plants are not alternative medicine. Willow bark extract is good example as well (aspirin).

So I encourage you to find any study on the homeopathic medicine that confirms it works.

 

[Thalassamania]

Some homeopathy works, without doubt, some homeopathy is horse pucky, without doubt. Just because digitalis works doesn't mean that you can help autoimmune diseases with low, chronic, doses of sulfur.

 

[GrumpyOldGuy]

The context of the question was not if any homeopathic treatments are effective, but if the extremely small quantities of active ingredients they contain have any link whatsoever to DCS.

 

[Blastman4444]

Some homeopathy works, without doubt, some homeopathy is horse pucky, without doubt. Just because digitalis works doesn't mean that you can help autoimmune diseases with low, chronic, doses of sulfur.

I never take anything much except IB profin once in awhile but My wife has had problems with sea sickness her whole life she even got sick on a carnival cruse ship once. She can't take anything it all puts her to sleep this trip I picked up one of those homeopathic devices you sniff called Quease Ease Aromatic Inhaler. It worked on her we couldn't believe it the boat we went out on in Key largo was so rough we had to sit on the floor or we would fall down.

 

[Blastman4444]

Yes, sorry, I mis-spoke in my other post. What I was trying to get at is that my computer counts "dive time" and not "bottom time" as we used to. It starts when I get wet, and ends when I re-surface. So I was wondering how the OP's computer did it (or if he was subtracting something to get his "BT").

I'm trying to compare my dives to his, and so I want to see what his "BT" actually reflects so that I am comparing apples to apples.

Blue Sparkle

Mine says BT in the log I went over the video I made of both dives I had a gopro that I just held in my right hand then let it drop and hang on a wrist strap the whole dive and I captured my computer screen several times in both dives the lowest my NDL got was 11 minutes toward the end of the 2nd dive then went to 38 minutes as we moved up some to start out ascent. My computer showed in the red on Ascent rate in the log in the video you can see everyone else went up faster then I did I was behind going slower up the line. Another mistake I see now is not watching my computer correctly when ascending again following the DM and others. I think back now how stupid I was if all we had to do was follow a DM why even have a computer of my own? Lot of dumb mistakes then flying out 20 hours later. My hope to this thread is to nail in in the head of new guys like me to think more about what your doing while your diving plan better. Another thing is if you feel tingling in your hands or weakness don't wait the faster you get to the chamber the better your outcome the longer you wait the more damage it is doing. The folks at St Mary's said they see a number of guys coming in days later wonder why they can't move there foot any longer or can't pee after they ignored the numbness and tingling.