Portal:Energy metabolism/Selected article/6

Two-day cardiopulmonary exercise testing or 2-day CPET is a of post-exertional malaise (PEM), one of the cardinal symptoms that distinguishes between individuals with and without ME/CFS. The hypothesis is that ME/CFS patients are almost unique in having a severe deterioration in the second of the two cardiopulmonary exercise tests performed on consecutive days. The test is also frequently used in research to compare outcomes pre- and post- exercise. (more...)