Importance of Variability in Cardiovascular Workouts

The most common cardiovascular workout consists of a 30 minute steady rate run on a treadmill, riding a stationary bike, or coasting on a elliptical machine while watching the television at their $35 per month state of the art gym.  While it is good that the individual is actively elevating their heart rate for 30 minutes and religiously doing this three to four days per week, the truth is that the value to an individual's cardiovascular system is greatly reduced after the first couple of weeks as the body becomes condition to operating in this steady state.  That is what our bodies do ...  they quickly adapt to new environments and conditions and then efficiently operate in that situation.  This is why it is important to vary the activity rate to keep the body under stress and tax the cardiovascular system. More...