reviewCanadian Journal of Applied PhysiologyAug 1, 2004Closed access

Principles, Techniques, and Limitations of Near Infrared Spectroscopy

MFMarco FerrariLMLeonardo MottolaVQValentina Quaresima

University of L'Aquila · Casa Sollievo della Sofferenza · +3 more institutions

PubMed
Indexed incrossrefpubmed

Abstract

In the last decade the study of the human brain and muscle energetics underwent a radical change, thanks to the progressive introduction of noninvasive techniques, including near-infrared (NIR) spectroscopy (NIRS). This review summarizes the most recent literature about the principles, techniques, advantages, limitations, and applications of NIRS in exercise physiology and neuroscience. The main NIRS instrumentations and measurable parameters will be reported. NIR light (700-1000 m) penetrates superficial layers (skin, subcutaneous fat, skull, etc.) and is either absorbed by chromophores (oxy- and deoxyhemoglobin and myoglobin) or scattered within the tissue. NIRS is a noninvasive and relatively low-cost…

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Topics & keywords

Topics
Keywords
  • Oxidative metabolism
  • Near-infrared spectroscopy
  • Cytochrome c oxidase
  • Deoxygenated Hemoglobin
  • Myoglobin
  • Oxygenation
  • Chemistry
  • Biomedical engineering
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