Colored light and brain and muscle oxygenation.

Colored light is applied in medicine in the treatment of various diseases. The aim of this study was to investigate potential effects of exposure to blue and red light on brain and muscle blood volume ([tHb]) and tissue oxygenation (StO2) measured by noninvasive near-infrared spectrophotometry (NIRS). Ten healthy volunteers were included in a randomized crossover study. Blue light exposure leads to decreased oxygen consumption in the brain and the skeletal muscle. Blue and red light have significantly different effects on [tHb] and StO2. DOI: https://doi.org/10.1007/978-1-4614-1566-4_5 Posted at the Zurich Open Repository and Archive, University of Zurich ZORA URL: https://doi.org/10.5167/uzh-70336 Accepted Version Originally published at: Weinzirl, J; Wolf, M; Nelle, M; Heusser, P; Wolf, U (2012). Colored light and brain and muscle oxygenation. In: Wolf, Martin; Bucher, Hans Ulrich; Rudin, Markus; Van Huffel, Sabine; Wolf, Ursula; Bruley, Duane F; Harrison, David K. Oxygen Transport to Tissue XXXIII. New York: Springer, 33-36. DOI: https://doi.org/10.1007/978-1-4614-1566-4_5 Colored L ight and Brain and Muscle Oxygenation J. Weinzir l, M . Wolf, M. Nelle, P. Heusser c3 and U. Wolf Institute for Complementary Medicine KIKOM, University of Bern, Switzerland, Division of Neonatology, University Hospital Zurich, Switzerland, Division of Neonatology, University Hospital Bern, Switzerland, Center for Integrative Medicine, University of Witten-Herdecke, Germany. [email protected] Abstract Colored light is applied in medicine in the treatment of various diseases. The aim of this study was to investigate potential effects of exposure to blue and red light on brain and muscle blood volume ([tHb]) and tissue oxygenation (StO2) measured by non-invasive near-infrared spectrophotometry (NIRS). Ten healthy volunteers were included in a randomized crossover study. Blue light exposure leads to decreased oxygen consumption in the brain and the skeletal muscle. Blue and red light have significantly different effects on [tHb] and StO2.Colored light is applied in medicine in the treatment of various diseases. The aim of this study was to investigate potential effects of exposure to blue and red light on brain and muscle blood volume ([tHb]) and tissue oxygenation (StO2) measured by non-invasive near-infrared spectrophotometry (NIRS). Ten healthy volunteers were included in a randomized crossover study. Blue light exposure leads to decreased oxygen consumption in the brain and the skeletal muscle. Blue and red light have significantly different effects on [tHb] and StO2.