Exercise Tolerance Testing (ETT) is a diagnostic tool, consisting of the RHE cycle, that is used in conjunction with scientifically validated exercise testing protocols to create a more accurate, sensitive and comfortable test, according to the company.
Quadriceps, hip flexors, gluteus, hamstrings, shoulders, chest, triceps and back can be utilized to complete the revolutions. The high amount of musculature improves mechanical efficiency, allowing the subject to achieve an adequate intensity level while remaining comfortable and minimizing impact on joints.