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Muscle Oxygen Monitoring
Moxy uses Near Infrared Spectroscopy (NIRS) to measure oxygen levels in muscle.
Hemoglobin is the molecule in red blood cells that carries oxygen; it changes color
depending on whether it is carrying oxygen or not. Near-Infrared light generated
by the Sensor travels from the emitter through the skin to interact with the
muscle, after which the light is scattered back to the detectors in the Sensor. The
Moxy Algorithm uses the information from the light striking the detectors to
determine the Muscle Oxygen Saturation.
The terms Muscle Oxygen Saturation, Muscle Oxygenation, and Muscle Oxygen
are the abbreviation, SmO
2
are used interchangeably. SmO
2
is the percentage of
hemoglobin in the capillaries of the muscle that is carrying Oxygen. The number
can be from 0 to 100%. Total hemoglobin, THb, is a relative measure of the
amount of hemoglobin in the optical path of the sensor
Muscle Oxygenation is a localized measurement. Even muscles that are close to
each other, such as the Rectus Femoris and the Vastus Lateralis in the Quadriceps
group, can have different values. Contralateral muscles may also have different
readings.
Muscle Oxygen Monitoring can be used to determine optimal training zones, to
monitor training intensity, and to set an optimal race pace. Refer to the Moxy
website at
www.moxymonitor.com for more information.