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Running shoes may cause damage to knees, hips and ankles
Elsevier Health Sciences ^ | Jan 4, 2009 | Unknown

Posted on 01/04/2010 10:00:35 AM PST by decimon

Greater stresses on joints than running barefoot or walking in high-heeled shoes observed

New York, NY, January 4, 2010 – Knee osteoarthritis (OA) accounts for more disability in the elderly than any other disease. Running, although it has proven cardiovascular and other health benefits, can increase stresses on the joints of the leg. In a study published in the December 2009 issue of PM&R: The journal of injury, function and rehabilitation, researchers compared the effects on knee, hip and ankle joint motions of running barefoot versus running in modern running shoes. They concluded that running shoes exerted more stress on these joints compared to running barefoot or walking in high-heeled shoes.

Sixty-eight healthy young adult runners (37 women), who run in typical, currently available running shoes, were selected from the general population. None had any history of musculoskeletal injury and each ran at least 15 miles per week. A running shoe, selected for its neutral classification and design characteristics typical of most running footwear, was provided to all runners. Using a treadmill and a motion analysis system, each subject was observed running barefoot and with shoes. Data were collected at each runner's comfortable running pace after a warm-up period.

The researchers observed increased joint torques at the hip, knee and ankle with running shoes compared with running barefoot. Disproportionately large increases were observed in the hip internal rotation torque and in the knee flexion and knee varus torques. An average 54% increase in the hip internal rotation torque, a 36% increase in knee flexion torque, and a 38% increase in knee varus torque were measured when running in running shoes compared with barefoot.

These findings confirm that while the typical construction of modern-day running shoes provides good support and protection of the foot itself, one negative effect is the increased stress on each of the 3 lower extremity joints. These increases are likely caused in large part by an elevated heel and increased material under the medial arch, both characteristic of today's running shoes.

Writing in the article, lead author D. Casey Kerrigan, MD, JKM Technologies LLC, Charlottesville, VA, and co-investigators state, "Remarkably, the effect of running shoes on knee joint torques during running (36%-38% increase) that the authors observed here is even greater than the effect that was reported earlier of high-heeled shoes during walking (20%-26% increase). Considering that lower extremity joint loading is of a significantly greater magnitude during running than is experienced during walking, the current findings indeed represent substantial biomechanical changes." Dr. Kerrigan concludes, "Reducing joint torques with footwear completely to that of barefoot running, while providing meaningful footwear functions, especially compliance, should be the goal of new footwear designs."

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The article is "The Effect of Running Shoes on Lower Extremity Joint Torques" by D. Casey Kerrigan, MD, Jason R. Franz, MS, Geoffrey S. Keenan, MD, Jay Dicharry, MPT, Ugo Della Croce, PhD, and Robert P. Wilder, MD. It appears in PM&R: The journal of injury, function and rehabilitation, Volume 1, Issue 12 (December 2009), published by Elsevier. The article has been made freely available and may be accessed at: http://www.pmrjournal.org/article/S1934-1482(09)01367-7/fulltext


TOPICS: Health/Medicine
KEYWORDS: ankles; feet; hips; joints; knees; running; runningshoes; shoes
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To: conservativeharleyguy

Yeah - I was just grossly rounding up. 2-4 pairs (mood or fancy) at $100-$125 list. So yours at $80 - the local store doesn’t charge Vibrim’s list? That’s good.


41 posted on 01/04/2010 12:49:13 PM PST by time4good
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To: decimon
I've run off & on for 15 years. Mostly on.

No other exercise does it for me the way simple running does. It gets my whole body involved & never an injury.

When I want a lighter day, I do the elliptical or stationary bike.

42 posted on 01/04/2010 1:28:59 PM PST by gdani (I just want to be left on this block of ice...)
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To: time4good
Their (Vibram’s) posted list prices are much higher than you’ll spend in a store. I got mine in a “specialty running store”, which tend to be higher than other retailers, so you might even be able to find them cheaper in a larger retailer or on-line. Still, I didn’t think that $80.00 was bad for what they are. Expect some weird looks when you wear them though.
43 posted on 01/04/2010 1:56:16 PM PST by conservativeharleyguy (Democrats: Over 60 million fooled daily!)
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To: conservativeharleyguy

Pavement is very, very bad for running, and it’s super easy to get an injury without either training or proper supervision.

I’ve ran quite a bit, and the problem isn’t the feet or the shoes, but the pavement. I no longer run. I much prefer skiing in the winter and swimming in the summer. Works out all the right things, with none of the bad things!


44 posted on 01/04/2010 2:09:26 PM PST by BenKenobi (;)
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To: Mr Rogers

She is very lovely. And just the same color as my little girl. Pure Arab?


45 posted on 01/04/2010 7:26:19 PM PST by ottbmare (I could agree wth you, but then we'd both be wrong.)
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To: decimon

I originally got them for the width, but have been very happy with them all around. With Nike, I’d have to go almost 2 sizes larger in order to get a wide enough shoe. Not any longer.


46 posted on 01/04/2010 8:07:36 PM PST by aruanan
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To: ottbmare

Thank you. Pure Arab of Russian lines...and a big girl, at 15.3.

But what I like is her personality. I hadn’t ridden in 25 years, and had never been good. We got her cheap because the previous owner, over the course of 2.5 months, had let her get beat up by bigger horses and turned her into a nervous wreck. It took me 3 days to get a bridle on her! By rights, she wasn’t a horse for someone returning to riding after 25 years.

However, once she realized we were on her side, she started to calm down. Over the past year, she has become a good teacher...she doesn’t ignore mistakes, but she doesn’t freak either - just lets me know something is wrong & needs correcting. And at the end of the ride, when the horse who couldn’t stand to have her head touched now begs to have her face rubbed for 5 minutes, or when she comes over in the corral to let me know her eyes need some cleaning, it is all worthwhile.

I still like jogging by myself thru the desert, but the teamwork with a horse who gives you her trust and who tries to work with you is pretty special, too! I now understand why people will own a horse for 25+ years...


47 posted on 01/04/2010 8:34:17 PM PST by Mr Rogers (I loathe the ground he slithers on!)
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To: anton

When I’m jogging in the desert, no one sees me. And no injuries yet...but I’ve only been jogging since 1972.


48 posted on 01/04/2010 8:36:34 PM PST by Mr Rogers (I loathe the ground he slithers on!)
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To: thefactor

Looks like Michelle’s new shoe wear.
Maybe they stretch.


49 posted on 01/04/2010 8:58:01 PM PST by cruise_missile
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To: iceskater

thanks, bfl


50 posted on 01/04/2010 10:07:25 PM PST by neverdem (Xin loi minh oi)
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To: Diana in Wisconsin
And here I thought my knee and ankle joints and my lower back were shot because of the 20 years I spent running around in combat boots! ;)

If running shoes are bad, even though most are designed to be better than older shoe designs, think how bad running in combat boots must be. At least you do get ankle support, and modern boots are really a lot like running/walking shoes, with very high tops. :) But I don't suppose you wore "modern" types any more than I did. (Although I own a pair now, I've only worn them a few times, seem more comfortable than the old black issue boots).

51 posted on 01/05/2010 9:13:15 PM PST by El Gato ("The Second Amendment is the RESET button of the United States Constitution." -- Doug McKay)
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To: El Gato

Fill the boots with water and let them stand overnight. Wear them wet for the next few days.

Custom fit, LOL!


52 posted on 01/06/2010 10:29:26 AM PST by Diana in Wisconsin (Save the Earth. It's the only planet with chocolate.)
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To: anton

You are right! Runners are exhibitionists at heart. They do it for the show value, and the feeling of superiority.


53 posted on 01/06/2010 10:35:24 AM PST by Palladin (Obama as President? "Totally unacceptable.")
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To: Diana in Wisconsin
Fill the boots with water and let them stand overnight. Wear them wet for the next few days

Don't think it would work for these, Made by Converse.

Besides, they are pretty comfortable as is.

54 posted on 01/06/2010 3:31:33 PM PST by El Gato ("The Second Amendment is the RESET button of the United States Constitution." -- Doug McKay)
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To: El Gato
Sexy! I sure do miss my 'bunny boots', though. They put even my Sorels to shame for warmth.
55 posted on 01/06/2010 4:20:24 PM PST by Diana in Wisconsin (Save the Earth. It's the only planet with chocolate.)
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