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Exercise Physiology

The InSpectra™ StO2 Tissue Oxygenation Monitor has not been cleared by the FDA for use in diagnosing or monitoring in exercise physiology. Additional clinical studies are required to establish the value of these measurements in assessing patient status relating to exercise physiology. Click here to see the complete Indications for Use.

Estimating Onset of Blood Lactate During Progressive Cycle Ergometry Using the InSpectra™ Tissue Near-Infrared Spectrometer
Bacharach D, Seifert J. (Unpublished data, 2000)

StO2 measurements during intense exercise correlate to blood lactate measurements, offering a continuous noninvasive alternative means of assessing athlete training intensity.

Muscle Oxygen Saturation Measurements Track Changes Due to Training in Ironman Triathletes
Snyder AC, Dorman JC, Parmenter MA
Poster Presentation at: Annual Meeting of the American College of Sports Medicine; May 2003; San Francisco, CA

The InSpectra™ System successfully demonstrated its ability to track improvements and declines in StO2 at maximum training exercise over the course of an eight-month training regimen. The StO2 measurements appeared to differentiate training progress more clearly than did blood lactate levels.

Reliability of Near-Infrared Spectroscopy for Determination of Muscle Oxygen Saturation During Exercise
Austin KG, Daigle K, Cowman J, Chelland S, Hayes EM, Patterson P
Poster Presentation at: Annual Meeting of the American College of Sports Medicine; May 2003; San Francisco, CA

The InSpectra™ System has been tested and proven a reliable measurement of muscle tissue saturation and ischemia when monitoring cyclists and runners exercised to their maximal states. In addition, comparisons of reliability with measures such as lactate, maximal oxygen uptake, and heart rate indicate a place for StO2 in the study and tracking of exercise intensity.

The InSpectra™ StO2 Tissue Oxygenation Monitor provides a direct, absolute measurement of hemoglobin oxygen saturation in tissue (StO2), providing trauma teams the ability to measure tissue oxygenation and monitor it during resuscitation. It is the only tissue oxygenation monitor designed for trauma environments. The InSpectra StO2 Tissue Oxygenation Monitor uses near infrared light to illuminate tissue, and then analyzes the returned light to produce a quantitative measurement of oxygen saturation in the tissue's microcirculation.

The StO2 Trauma Study researched the role that tissue oxygen saturation monitoring could play in hemorrhagic shock and resuscitation. Study results demonstrate that StO2 measurements less than 75% may indicate serious hypoperfusion in trauma patients and that StO2 functions as well as base deficit in indicating hypoperfusion in trauma patients.