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- Newsgroups: rec.scuba
- Path: sparky!uunet!scifi!njs
- From: njs@scifi.uucp (Nicholas J. Simicich)
- Subject: Re: Bad Back
- Message-ID: <1993Jan28.153445.2726@scifi.uucp>
- Organization: Nick Simicich, Peekskill, NY
- References: <20149@mindlink.bc.ca>
- Date: Thu, 28 Jan 1993 15:34:45 GMT
- Lines: 91
-
- In article <20149@mindlink.bc.ca> Bruce_Dunn@mindlink.bc.ca (Bruce Dunn) writes:
- > Aside from the problem of getting into the water, those diving in
- >cold water have a potential problem in that buoyancy is distributed over much
- >of the body (wet or dry suit) but weight is concentrated at the waist. To
- >prevent backaches due to the "bending" this induces, consider carrying a
- >portion of your weights as ankle weights or in your BC pockets (where they
- >can be directly lifted by the BC at depth). Be sure to maintain enough
- >weight on your releasable belt for safety (do our resident instructors have
- >any comments on exactly how much of a suited diver's weights must be readily
- >releasable?)
-
- It is probably a bad idea to put more than a couple of pounds of
- weight in the BC pocket. It just isn't designed for it. The velcro
- is not up to the task of holding back more than a couple of lbs in
- weight, and so forth.
-
- There are various systems that allow you to put weight on your tanks,
- and drop it. You can make them yourselves or buy them commercially.
-
- I have a canonical bad back. I've had surgery (unsuccessful) a number
- of years ago, and have almost continual sciatica.
-
- My diving has been successful. I've taken up a number of physical
- activities, and none have been as successful as diving. I find that I
- have to stand very carefully when in full equipment. Bending over is
- verboten. However, it is bending at an angle that has thrown my back
- seriously out in the past, and twisting and so forth. Lifting doubles
- requires me to carefully plant and so forth.
-
- I have had post-dive backaches from my weight belt, and it is not easy
- to handle, especially in cold water where things are a lot heavier.
- I've invested in a DUI weight system, which should distribute the
- weight to the shoulders and hips, but I've yet to dive it. As some
- folks have pointed out, wearing a weight belt can put the weights on the
- hips, which, if worn in that manner, is actually below the back. I'm
- going to see how the DUI weight system works. In any case, this
- should actually allow me to wear my weights lower on my hips without
- fear of the belt falling off when I'm vertical, but while standing,
- some of the weight will be on the shoulders.
-
- If I'm feeling bad, I've been known to kick with one fin, put my gear
- on (and take it off) in the water, and, blow off dives that require a
- lot of walking and carrying. I'm not comfortable with a lot of
- climbing, so I don't do it.
-
- In my case, there is nothing that I can't ignore in terms of pain, it
- is just uncomfortable, so I have the ability to function in case of
- emergency, and have done so in practice. I'd say that this is an
- important consideration. Unless you are diving with a guide who is
- responsible for you at all times (and this is not an unreasonable
- decision to make) you must be able to power through (or compensate
- for) whatever physical problems you have if you have to do a tow or a
- rescue. If you dive in a buddy situation, you should be comfortable
- with that.
-
- As far as your quesion on 'how much weight should be easily dropped'
- the answer is, "All of it." Actually, there are two answers: It only
- takes a few lbs of positive buoyancy to get to the surface. In the use
- of the DUI weight system, you have to take two separate actions to
- ditch all of your weights, and there is some thought that if you hit
- the point where you were ditching weights, that you'd ditch one bag,
- hit the surface, and then ditch the other.
-
- However, one of the major reasons to drop weight, and probably more
- important than being able to make a trip to the surface, is being able
- to drop weight at the surface. A distressed diver may have to be
- rescued. In that case, it is sort of important that the rescuer be
- able to determine how to drop the weights. Brightly colored ripcord
- systems, standard weight belts, and so forth are good. Dark colored
- velcro flaps are not what you want. Weight distributed in multiple,
- non-obvious places are not what you want.
-
- To quote Butch Hendricks, loosely, today's diver wants their whole
- head and part of their shoulders out of the water to be comfortable.
- They want to be buoyant enough that they rise with waves rather than
- having them wash over them.
-
- If you are doing a rescue, you want to get them out of the water far
- enough to calm them down. And the only way to do this is to ditch
- weight. Most of today's BCs, (with the exception of some few, such as
- the Scubapro) can't do this unless you also drop all of the weight.
- By stashing weight around the body, you make this impossible.
-
- I wouldn't stash more weight than would be in ankle weights, a few lbs
- at most.
-
-
- --
- Nick Simicich - uunet!bywater!scifi!njs - njs@watson.ibm.com
- SSI #AOWI 3958, HSA 318, NAUI #14065
- Join the movement --- turn 'to bush' into a verb.
-