zelda
Nomad
I just picked up cycling last year and it's certainly been a great alternative to keeping in shape when I'm not running and awesome for building endurance. I was one of those poor folks where the constant pounding on the legs from running eventually got the best of my knees. I trained for a couple of sprint triathlons and just did my first half Ironman triathlon last weekend.
Others made a good point that biking will develop different leg muscles. However, doing ONLY running can also overdevelop some muscles and not enough others, which is a primary reason for knee and other leg-related injuries. Cycling will help balance you out a bit.
Check out a spinning class. While only an hour, a good one can seriously kick your butt! Also make sure you take a good balance of carbs and protein before and definitely after running and biking. It will help take your body and fitness ability to the next level.
Others made a good point that biking will develop different leg muscles. However, doing ONLY running can also overdevelop some muscles and not enough others, which is a primary reason for knee and other leg-related injuries. Cycling will help balance you out a bit.
Check out a spinning class. While only an hour, a good one can seriously kick your butt! Also make sure you take a good balance of carbs and protein before and definitely after running and biking. It will help take your body and fitness ability to the next level.