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Proceedings Paper

Optical property dynamics during exercise measured by near-infrared time-resolved spectroscopy in humans (Conference Presentation)
Author(s): Tasuki Endo; Ryotaro Kime; Sayuri Fuse; Norio Murase; Yuko Kurosawa; Takafumi Hamaoka

Paper Abstract

The aims of this study were to clarify the influences of fat layer thickness (FLT) and aerobic capacity on optical property dynamics during exercise by using near-infrared time-resolved spectroscopy (NIRTRS) in humans. Endurance-trained men and healthy control men with various FLT performed a ramp incremental cycling exercise test until exhaustion. Absorption coefficient, reduced scattering coefficient, and mean optical pathlength in the vastus lateralis were continuously monitored by three-wavelength (763, 801 and 836 nm) NIRTRS. Our results have demonstrated that FLT and aerobic capacity affect the optical property dynamics during exercise and that the effects may differ depending on the wavelength.

Paper Details

Date Published: 9 March 2020
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Proc. SPIE 11237, Biophotonics in Exercise Science, Sports Medicine, Health Monitoring Technologies, and Wearables, 112370L (9 March 2020); doi: 10.1117/12.2545279
Show Author Affiliations
Tasuki Endo, Tokyo Medical Univ. (Japan)
Ryotaro Kime, Tokyo Medical Univ. (Japan)
Sayuri Fuse, Tokyo Medical Univ. (Japan)
Norio Murase, Tokyo Medical Univ. (Japan)
Yuko Kurosawa, Tokyo Medical Univ. (Japan)
Takafumi Hamaoka, Tokyo Medical Univ. (Japan)


Published in SPIE Proceedings Vol. 11237:
Biophotonics in Exercise Science, Sports Medicine, Health Monitoring Technologies, and Wearables
Babak Shadgan; Amir H. Gandjbakhche, Editor(s)

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