<http://schema.org/description>
"Your running stride -- the way you move your legs and land on your feet -- determines your speed, endurance and risk of injury. What does proper running stride look like, and how can you master it?"^^<http://www.w3.org/2001/XMLSchema#string>
<http://adventure.howstuffworks.com/outdoor-activities/running/training/running-stride3.htm>