Maximal Aerobic Power: An Important Clinical and Research Measurement

Abstract

M aximal aerobic power describes the functional capacity of the cardiorespiratory system and is defined as the maximum rate at which oxygen can be used during a specified period, usually during intense exercise. It is a function both of cardiorespiratory performance and the maximum ability to remove and use oxygen from the blood. The higher themeasured cardiorespiratory fitness level, the more oxygen has been transported to and used by exercising muscles, resulting in a higher level of exercise intensity that is able to be achieved. Because regular physical activity is required to maintain cardiovascular health and improve athletic performance, its measurement continues to be a focus in the health and clinical setting. Because of its underlying value as a health indicator across a variety of clinical populations, maximal aerobic power often is used as a primary or secondary end point in many research trials (10). This article will discuss the measurement of maximal aerobic power and the use of this measurement in various clinical settings, particularly as it relates to cardiovascular disease.