As runners, it is easy to get in a groove of lacing up the shoes day in and day out, giving little thought to any other sort of training. Triathletes on the other hand cross train on a daily basis. One day we hit the pool and the next we are on the bike. Brick workouts take it to another level, combining multiple sports into one intense training session.
The great thing about mixing up your training with another sport is that it helps limit injury and gives your body a chance to keep the heart rate up while working new muscle groups. If you don't do it now, you should think about adding a cycling workout or even a swim to your daily routine. You will come back refreshed and ready to conquer that next training run.
Today I took out the bike and spun my legs for about one hour. My running consistency has been erratic so instead of adding another run in the middle of my schedule, the bike workout is a perfect supplement to my routine. The ride was easy with some rolling hills. Tomorrow I will be back in the running shoes.