|Coopers 12-min run| Coopers 12-min run test is a maximal test
performed on a flat measured running surface. The 12 min run
test is also called the Cooper test. It was developed in the
sixties as an easy tool to estimate VO2max in soldiers. The
validity of this test is quite good if you are accustomed to
running. For people not used to running it can be difficult to
administer the speed from start to end and also peripheral
discomfort in the legs can limit performance rather than
circualatory capacity. Besides the original validation of the
12-min test on soldiers, there has been other validations on
other populations. In at least one of them (couldn't find the
ref right now), the analysis showed that a specific performance
indicated a 5 % higher VO2max for woman. This could be explained
differences in running economy between sexes and this has
actually been shown in some studies. I beleive the yo-yo test is
more relevant to soccer fitness as compared to the cooper test.I
believe it is more accurate for the e