Performing the same activity repeatedly at the same level makes the body more efficient, which eventually results in lower caloric expenditure from the activity. In fact, research shows that by sticking to just one activity, the number of calories burned by exercisers may decrease as much as 25 percent..



Fitness professionals agree the best solution to dodge exercise plateaus and workout boredom is cross training. Cross training simply means mixing together a variety of exercise activities into a varied regimen. Cross training works because of 'energy efficiency'. This means that your body becomes accustomed to a certain type of exercise after a period of time. If you mix it up, you are surprising your body, which responds by burning more calories in an effort to 'adjust' to the new exercise. For example, if you play tennis after a long time, you feel sore the next day, because it's something new for your body. As you play more often, it get's easier to adjust (time to try something new?)Do you work out at a gym? Instead of 45 minutes on a treadmill each time, jump on a Lifecycle exercise bike for 30 minutes, then spend 15 minutes on a stairclimber. Swim one day and lift weights another. Health clubs with an extensive choice of group exercise classes make cross training a breeze; once a week try indoor cycling, step aerobics or kickboxing. Check out the newest classes emphasizing stretching and toning, such as Pilates or yoga.

Clinical studies show most people plateau in their exercise programs somewhere between their sixth and eighth week. Exercisers should make sure they change their routines at least that often to maintain workout efficiency and prevent boredom. Ideally, having at least two different activities should be alternated daily or conducted within the same workout.