Cardiovascular endurance is the ability of your cardiovascular and respiratory systems to work properly while under the stress of a challenging exercise session. These systems include your blood, heart, blood vessels and lungs. As you strive to increase your cardiovascular endurance, you may be surprised at how quickly aerobic exercises improve your physical fitness level. Incorporate a variety of cardio exercises into your weekly schedule to reduce your risk of overuse injuries and to maintain your motivation.
Here is an in depth study on the long term effects of cardiovascular neglect and the potential of a healthy, active lifestyle.