If you're new to running or even a fast walking workout, the first place you'll feel the burn might be your shins. Sharp, shooting pain down the front of your legs after you run is known as shin splint, and while its not dangerous, it can be quite painful. To avoid shin splints, make sure your running or walking shoes have plenty of cushioning and not worn out. Specialists at many fitness shoe stores can help you find the right shoe to fit your fit and your activity. Try not to run on concrete but instead shoot for dirt trails, grass, or tracks like those at local high schools. Increase the length of time you run gradually; build up the miles slowly, and if you're still in pain, try running every other day at first.