2. A longer stride does not make you run faster
Despite popular belief, striding out as far as you can doesn’t correlate to more speed.
In fact, an elongated stride slows you down and is the cause of those horrible shin splints and lower back pain you’re feeling after a run. A long stride where the foot strikes in front of the knee causes the foot to strike on the heel. This can lead to discomfort, pain, and sometimes serious injury. To add perspective, start jumping up and down landing smoothly on the ball of your foot like you are jumping rope. Now try jumping up and down on just your heels. The latter is what you’re doing when you’re running.