[quote]Bill Roberts wrote:
WyldFlower wrote:
Hi Bill,
I based my statement on various articles and studies that i’ve read on running and knee problems. There was a 2008 Stanford University study that came to the conclusion that running slowly over long-distance on concrete actually PREVENTED knee injuries.
The study looked at regular joggers over a 20 year period. It found that:
“The dire injury predictions other scientists made for runners have fallen flat. Fries and colleagues published a study in the August issue of the American Journal of Preventive Medicine that showed running was not linked with higher rates of osteoarthritis in older runners. Runners also did not require more total knee replacements, Fries said.”
I also read, last year, a peer-reviewed scientific study conducted by the Radiology Department of the Danube Hospital which came to similar conclusion:
“Non-physiological maximal loads secondary to the marathon race do not cause any permanent damage in the internal structures of the knee joint in individuals without significant pre-existing damage. A disposition for premature arthrosis was not registered in the population investigated.”
I don’t want to spend much time going through that as I fully expect it is unnecessary and better left to you to find the reasons yourself why neither shows what you think they do. It is rather like getting references for a claim that the Earth is flat… one really doesn’t want to slog through it.
Taking just a glance at the first, here are the reasons I immediately see why your conclusion does not follow:
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OsteoARTHRITIS is not what was being talked about, but is a disease condition.
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Rate of total knee replacement not being higher, to statistical significance anyway (which might allow a wide range: I didn’t check) does not show that damage to the knees does not occur.
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The group of runners had a selection bias: these were individuals that, still being distance runners at 50 years of age, may well be more resistant to knee damage from running.
I would ask that you try to find reasons like this yourself. After having thoroughly done so and still not finding any, then I’ll spend time going into detail on your second reference for this, IMO, flat-Earth theory that chronic long distance running on pavement is harmless for the knees for people in general, or in general for let’s say individuals over 200 lb (this being a drug-enhanced bb’ing forum.)
Because there are countless individuals who ran on pavement, their knees started hurting, they quit, their knees slowly got better, they went back to it, their knees started hurting, etc.
I only went through two bouts of that. Knees were a real problem at age 30; after totally quitting running on pavement, were fine for the next 15 years. Stupidly started doing some HIIT on pavement at age 45, knees started hurting. Stopped doing that, knees got better. Sprint now on grass, barefoot, and there are no knee problems.
That is only a single example, which itself would prove nothing except what is true in my own case, but the thing is, there are MILLIONS of example like this in this country alone.
Yes, some people can get away with it. Nowhere did I deny that.[/quote]
Cool, I know my study of this is cursory. I’ve been doing “roadwork” as part of my MMA training for a while now, which mixes concrete and track running, and i needed to be sure there was no permanent damage being done - particularly because i’ve been given such mixed information over the years. At 195lb i’ve never had any problems, however.
But, of course i don’t have the scientific background that you have, so i’m sure i’m not being discerning enough in my reading of these “studies” that i’ve linked to here. Maybe i need to delve into this more.
Thanks for your time.