The Astrand test is used to measure a clients aerobic fitness, specifically it is a predictive test of the clients VO2max. The purpose of this test is to measure a client's aerobic fitness (the ability of the body to use oxygen to produce energy while running). For this test your client starts walking on the treadmill and builds their speed up to 8.05km/hr (5 mph), with a grade of 0%. Once they are at this speed start the stopwatch and complete 3 minutes. After 3 minutes set the grade to 2.5% and complete another 2 minutes. Increase the grade by 2.5% every 2 minutes thereafter until the client is unable to continue the test. This application is able to calculate the value of vo2max and classify the performance into six levels: very poor, poor, fair, good, excellent, superior. You can manage the registries of your athletes and choose whether to perform the test of a single athlete or several athletes at once. This application is ideal for the individual athlete who wants to measure their athletic condition, but also for the personal trainer who wants to check the level of their athletes.