Noninvasive detection of gas exchange rate by near infrared spectroscopy

Guodong Xu; Zongzhen Mao; Bangde Wang

doi:10.1117/12.823355

6 March 2009 Noninvasive detection of gas exchange rate by near infrared spectroscopy

Guodong Xu, Zongzhen Mao, Bangde Wang

Proceedings Volume 7280, Seventh International Conference on Photonics and Imaging in Biology and Medicine; 728026 (2009) https://doi.org/10.1117/12.823355
Event: Photonics and Optoelectronics Meetings, 2008, Wuhan, China

Abstract

In order to study the relationship among the oxygen concentration in skeletal muscle tissues and the heart rate (HR), oxygen uptake (VO₂), respiratory exchange ratio (RER) during incremental running exercises on a treadmill, a near-infrared spectroscopy muscle oxygen monitor system is employed to measure the relative change in muscle oxygenation, with the heart rate, oxygen uptake, production of carbon dioxide (VCO₂) and respiratory exchange ratio are recorded synchronously. The results indicate parameters mentioned above present regular changes during the incremental exercise. High correlations are discovered between relative change of oxy-hemoglobin concentration and heart rate, oxygen uptake, respiratory exchange ratio at the significance level (P=0.01). This research might introduce a new measurement technology and/or a novel biological monitoring parameter to the evaluation of physical function status, control the training intensity, estimation of the effectiveness of exercise. Keywords: near-infrared spectroscopy; muscle oxygen concentration; heart rate; oxygen uptake; respiratory exchange ratio.

Citation Download Citation

Guodong Xu, Zongzhen Mao, and Bangde Wang "Noninvasive detection of gas exchange rate by near infrared spectroscopy", Proc. SPIE 7280, Seventh International Conference on Photonics and Imaging in Biology and Medicine, 728026 (6 March 2009); https://doi.org/10.1117/12.823355

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KEYWORDS

Oxygen

Heart

Near infrared spectroscopy

Blood

Mode conditioning cables

Relativity

Tissues

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