The Corival Nuclear design is a multifunctional ergometer can be used in various ergometry settings and also used for cardiac examinations, cardiac research, spectroscopy and other examinations and research. Because of its excellent features, Corival is one of the most popular ergometers worldwide. This ergometer have an electro-magnetic braking mechanism that makes it more accurate compared to a friction braking system. It is also much easier to place this device direct in front of an X-ray scanner because it has no handlebar. The extreme low start-up load of 7 watts and the adjustability in small steps of 1 watt make this ergometer perfectly suitable for many different applications. It also has an extremely low noise level, thanks to its accurate manufacturing and careful choice of materials. This device also have a simple retractable wheel that makes it easy and possible for the user to transport it when needed.