V.O2 on Instagram: "When you consider that many running injuries are the result of landing shock, it’s not surprising that experienced runners tend to turnover faster than beginner runners. If a group of beginners were required to start running 100 miles per week, two things would probably occur: Many runners would hurt themselves, and many who didn’t get hurt would adjust to taking quicker, lighter steps. I try to save runners a lot of grief by encouraging them to convert to a stride rate assoc