Running is one of the best ways to get into shape and to stay in great condition, because it is a sport you can practice on your own time, at your own pace, and without a lot of fancy equipment. However, making running your primary mode of exercise can prove to be a bit problematic because it puts your fitness at the mercy of the elements. Running on a crisp fall afternoon is a lot different than trying to hit the sidewalks for a great run in the heat of a scorching August day or in the frigid chill of a snowy January. Luckily, dedicated runners have developed ways to keep improving their skill and strength even when Mother Nature is not on their side.