Exercise Physiology

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Bacharach D, Seifert J. (Unpublished data, 2000)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 noninvasive, continuous, real-time, and direct measurement of hemoglobin oxygen saturation in tissue (StO₂), providing trauma teams the ability to measure tissue oxygen saturation and monitor it during resuscitation. It is the only perfusion status 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.