Did you know that trekking poles are a life saver on your knees and ankles? It's true! Using a single trekking pole or a pair of hiking poles will allow your arm muscles to take a good portion of the burden off of your knees and ankles. This is especially helpful when you are hiking uphill or downhill. A pair of walking poles gives you 4 wheel drive. You can use your arms to thrust you forward so your legs don't have to do all the work. On the downhill side of things, you can use your poles as brakes and to help cushion the blow of your weight on your knees, ankles and other joints. Trekking poles can also prevent falls by giving you extra balance. You can wear lighter shoes without spraining an ankle