What Causes a Strain?
A strain is caused by twisting or pulling a muscle or tendon. Strains can be acute or chronic. An acute strain is associated with a recent trauma or injury; it also can occur after improperly lifting heavy objects or overstressing the muscles. Chronic strains are usually the result of overuse: prolonged, repetitive […]

by Aaron Carr
Since his untimely death while serving his country in Afghanistan last fall, numerous charity events have sprung up in honour of Cpl. Nathan Hornburg. The latest event is the Loops for Troops Run at the Currie Barracks in southwest Calgary on June 15 starting at 9 a.m. The event features a one-and-a-half-kilometre (military […]

A trail runner goes to see the doctor about some elbow pain she’s been having.

The doctor tells the trail runner that she needs to stop running.
The trail runner asks, “Why?”
The doctor says, “Because I’m trying to examine you.”

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by Laith Agha
Critics call them annoying, rude distractions. Supporters say they’re a needed pick-me-up that enhances the experience. Whether iPods and other MP3 players should be allowed in marathons and other running events is a divisive issue within the running community. The divide is part generational, part philosophical.
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by Hanah Cho
Taking two weeks off from work to complete a 156-mile ultramarathon — and in the Sahara Desert of all places — doesn’t sound like much of a vacation. But vacationing wasn’t T. Rowe Price fund manager Jeff Arricale’s mission when he successfully completed the Marathon des Sables (Marathon of the Sands) several weeks […]

http://www.youtube.com/watch?v=VRmRHXOuaJM

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Horton, Great Britain - 900 athletes and supporters descended on the tiny Yorkshire (England) Dales village of Horton on Saturday (26) to contend for the World Championship titles on offer for the winners of the 54th Three Peaks race.
Thankfully, the weather forecasters got it completely wrong and instead of the forecasted heavy rain, running conditions […]

January 1st, 2008 marks the restart, if you will, of Runonearth.com.  We apologize to our readership that we had to suspend operations in the middle part of 2007, but we have persevered over unforseen hurdles and are relaunching what we feel is the best Trail Running blog out there.
Casey McGuire will again be at the […]

Her advantage is a shotgun. Her edge the shard of a beer bottle.
Before ever stepping to the starting line, a history of despair and adversity is already helping her pull away. A history her competitors rarely outrun.
How can depression turn into leverage? Suffering into superior endurance? Experience. You had to be there.
Blisters that scream with […]

On June 16th, more than 150 adventure racers battled through the challenging San Juan Mountains in the 7th Annual Durango Adventure Xstream Adventure Race. Checkpoint Zero has an event roundup:
Competitors at the Adventure Xstream Adventure Race competed in a 60-mile or 100-mile course testing their skills in trail running, mountain biking and kayaking across challenging […]