Fellow Cyclist goes down HARD right next to me ...
05-25-07, 09:25 AM
#101
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I am currently recovering from an accident due to a snapped chain in a bad situation. (I will ride again by the end of the summer , we hope++) I have folks looking into the chain, it seems just a freak thing as I take very good care of my Machine. As we reduce weight we reduce the percentage of redundancy. As this happens it takes less of a defect or a misalignment or fatigue to push us into the danger zone.
We regularly operate in sustained high speeds with many outside factors out of our control, but we love the bike! My motto is, “Do your best and leave the rest.” (and pray!!)
I hope your friend recovers quickly. Blessings.
(I was wearing glasses with rims, they snapped on the side, no cuts.)
We regularly operate in sustained high speeds with many outside factors out of our control, but we love the bike! My motto is, “Do your best and leave the rest.” (and pray!!)
I hope your friend recovers quickly. Blessings.
(I was wearing glasses with rims, they snapped on the side, no cuts.)
05-25-07, 09:58 AM
#102
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Originally Posted by DrPete
That's not really what self aid/buddy aid teaches... What gets missed too often in that training, though, is the value of direct pressure. It's kind of a shame. Another problem it leads to is the overuse of tourniquets. What is really taught, though, or should be, is a stepwise approach to a bleeding wound, hence the field dressing --> pressure dressing --> tourniquet sequence.
But really, though, the tactical situation sends a lot of things flying out the window, so as long as the medics get them to us alive and kickin' we can usually work with it.
But really, though, the tactical situation sends a lot of things flying out the window, so as long as the medics get them to us alive and kickin' we can usually work with it.
Like you'd know! Just kidding. Come to think of it, the emphasis is on pressure, tourniquets etc, but the bandage emphasis was simply to NEVER remove a field dressing once applied--if it bleeds through, apply another bandage over the top. That part was clearly emphasized, as well as tourniquets should be a last resort.
Either way, glad to hear the Buckeye is apparently doing OK after that tumble.
05-25-07, 10:17 AM
#103
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Originally Posted by slowandsteady
It isn't just about platelet aggregation and disturbing the clot, but about thrombin collagan and ACTIVATING platelets. Platelets are traveling through our body all the time and not forming clots. Why? Because they are not ACTIVATED. You have to activate platelets for them to induce clots. If you continually disturb the wound by replacing dressings and essentially replacing activated platelets with unactivated platelets sans collagen and thrombin it will take that much longer to stop the bleeder.
Even in our experience in the field with chitosan and zeolite dressings, initial animal studies showed that just throwing a bandage on there, even one of the fancy ones, is the same as doing nothing at all.
I don't think it's a great idea to change the recommendations, but it amazes me that you think first aid recommendations with no authors listed are some kind of gospel. Hell, the ACLS guidelines change every three years, and at the end of the day there are no prospective, randomized trials backing any of them--they're best guesses based on the available evidence.
"Keep the bandage on" is a good way to tell a layman not to disturb the clot, and nothing more. First aid and BLS classes are taught to eliminate clinical judgment and are often overly conservative for the sake of simplicity. I'm not saying that prehospital first aid recommendations for the layman should be changed, but your understanding of what activates a platelet and forms a clot is simply wrong, along with your "dressings increase platelet concentration" statement.
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"Unless he was racing there was no way he could match my speed."
05-25-07, 11:40 AM
#104
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The good news is that he wasn't out on a solo training ride when it happened. I ride 1 night/wk with the local club, but am riding solo on back country roads the rest of the time. Makes me a bit nervous thinking of that happening to me while out alone! Then again, I WAS hit by a truck while riding, so I have a tendency to expect the worst!
Glad he's okay. GO BUCKEYES!
Glad he's okay. GO BUCKEYES!
05-25-07, 01:40 PM
#105
But on the road more
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Originally Posted by DrPete
Mmm... AAA's... That's some good stuff right there.
Ahhhh- spoken like a true surgeon!
We got 1 to 3 a week during the summer, medevacs from the shore hospitals that didn't have any vascular people. Not a great time of the year to have set up 6-8 units of any group/type, much less the occasional ABneg.
Last edited by MTBLover; 05-25-07 at 01:49 PM.
05-25-07, 01:47 PM
#106
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Originally Posted by DrPete
Even in our experience in the field with chitosan and zeolite dressings, initial animal studies showed that just throwing a bandage on there, even one of the fancy ones, is the same as doing nothing at all.
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05-25-07, 05:23 PM
#107
Cycle for life...
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From the OP:
Can't wait to send David the link to this thread! He'll get a kick out of it ... and a First Aid Treatment lesson! hahaha
It's all good.
Can't wait to send David the link to this thread! He'll get a kick out of it ... and a First Aid Treatment lesson!
hahahaIt's all good.
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-\Brian
18' Landshark Tandem - Custom
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-\Brian
18' Landshark Tandem - Custom
15' Wabi Special Single-Speed Road
06' Cannondale Six13 TeamOne
06' Cannondale Prophet 3 "Lefty"
92' Trek 5200
05-25-07, 06:05 PM
#108
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Originally Posted by Turboem1
I know nothing about building wheels so get ready for a dumb question....
The spokes on a wheel are tensioned to pull the rim in towards the hub? If so that doesn't make sense to me. I thought it would make sense to have the spokes pushing out on the rim. All forces acting on the rim (riders weight, bumps ect all push the rim in.) to resist that wouldn't you want the spokes to push out, not help and pull in?
The spokes on a wheel are tensioned to pull the rim in towards the hub? If so that doesn't make sense to me. I thought it would make sense to have the spokes pushing out on the rim. All forces acting on the rim (riders weight, bumps ect all push the rim in.) to resist that wouldn't you want the spokes to push out, not help and pull in?
You'd be amazed how much stronger metals are under tension than compression. The amount of weight a steel cable will hold under tension is gargantuan compared to how much a steel beam of the same mass will support under compression. Bucky Fuller used to refer to his ideal of architecture as "islands of compression in a sea of tension". Some of his early home designs even resembled bike wheels on their sides - a strong, central mast (compression) supported a skin and superstructure that were hung from the mast like a rim from the hub (tension). Such buildings were extremely light, and (except for the mast) could essentially be trucked in and assembled in a day.
See: https://en.wikipedia.org/wiki/Tensegrity
05-25-07, 06:46 PM
#109
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I'll thank you not to refer to Princeton that way.
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ElJamoquio didn't hate the world, per se; he was just constantly disappointed by humanity.
05-25-07, 08:39 PM
#110
Making a kilometer blurry
Originally Posted by jimx200
Question: as a small clyde, about 6'2"-215, does anyone know if Mavic Askium wheels on my Bianchi pretty strong? I have had my share of injuries: broke a kidney in half (removed after severe bleeding) while sledding, injuring my other kidney (2-3 days of peeing blood), broken wrist both bones (not a horse lover), and a permanent scar on my right eye (with bluring) from a fish hook. Looking at that mangled wheel is pretty sobering.
What will eventually happen is that you'll start breaking rear spokes. This will be probably around 8K-10K miles at your weight, on "average-good" roads, I'm guessing. No big deal when a spoke breaks, just get it replaced. Once a couple spokes break in a short time period, it's time to buy new wheels.
05-26-07, 09:28 AM
#111
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Originally Posted by DrPete
If you only hold pressure on arterial bleeds, you'd be watching a lot of people bleed from their wounds. Puncture wounds will usually stop bleeding on their own and you should NOT try to make them bleed. Those can be arterial bleeds too... Any wound deep enough to require being seen by a doc is going to get aggressively irrigated anyway, so the "let it bleed to keep it clean" thing isn't something I'd do.
Where/when was that taught, out of curiosity?
Where/when was that taught, out of curiosity?
I'm somewhat confused by your post.
Are you saying that for the layperson the best first aid for a laceration with arterial bleeding isn't direct pressure with a suitable dressing? If so, that thinking is out of line with the mainsteam...hence my challenge in my original post to provide support for your position.
https://www.mayoclinic.com/health/fir...eeding/FA00038
While it appears that letting minor punctures bleed themselves out as a form of self irrigation isn't as commonplace as it may have once been, I certainly can't see any harm in it, and it is still being advocated by a number of first aid experts.
https://www.ehow.com/how_5432_treat-puncture-wound.html
