Cross training also known as conditioning refers to training in different ways to improve overall performance. It takes advantage of the particular effectiveness of each training method, while at the same time attempting to neglect the shortcomings of that method by combining it with other methods that address its weaknesses.
In truth, it means doing something else other than your favorite activity(RUNNING) in order to get exercise. Take for instance, my situation. I can't run every single day or else i will get injured and I don't want to miss out on family time. So, little dirt dawg and I in the face of gas prices being over $3.00/gallon, 80 degree temps, and an commitment to try being as green as possible, headed out in the THE TRAIN (1 Marin Hawk Hill Bike and 1 Trek Doodlebug) for a leisurly jaunt (approx 6.34 miles) around town in order to check in and receive orders from a friend who is leaving town.
This was followed by a quick stop for post ride fuel.