Greater muscle oxygenation during moderate-intensity constant-work exercise in endurance athletes

Tasuki Endo; Rotaro Kime; Riki Tanaka; Sayuri Fuse; Miyuki Kuroiwa; Yuko Kurosawa; Takafumi Hamaoka

doi:10.1117/12.2608363

7 March 2022 Greater muscle oxygenation during moderate-intensity constant-work exercise in endurance athletes

Tasuki Endo, Rotaro Kime, Riki Tanaka, Sayuri Fuse, Miyuki Kuroiwa, Yuko Kurosawa, Takafumi Hamaoka

Proceedings Volume PC11956, Biophotonics in Exercise Science, Sports Medicine, Health Monitoring Technologies, and Wearables III; PC1195609 (2022) https://doi.org/10.1117/12.2608363
Event: SPIE BiOS, 2022, San Francisco, California, United States

Abstract

The aim of this study was to clarify exercise-induced vasodilation by comparing the changes in muscle oxygenation during constant-work exercise (CWE) between untrained and endurance-trained individuals using time-resolved near-infrared spectroscopy (TR-NIRS). Ten healthy young untrained and 9 endurance-trained individuals performed CWE at moderate and high intensities each for 6 minutes. Muscle oxy/deoxygenation in the vastus lateralis was continuously monitored by TR-NIRS. Our results have demonstrated that endurance-trained individuals with high aerobic capacities showed increased muscle oxygenation during CWE, leading to higher exercise tolerance function. Thus, TR-NIRS can provide an optimal exercise training intensity for athletes to improve aerobic capacity.

Conference Presentation

Citation Download Citation

Tasuki Endo, Rotaro Kime, Riki Tanaka, Sayuri Fuse, Miyuki Kuroiwa, Yuko Kurosawa, and Takafumi Hamaoka "Greater muscle oxygenation during moderate-intensity constant-work exercise in endurance athletes", Proc. SPIE PC11956, Biophotonics in Exercise Science, Sports Medicine, Health Monitoring Technologies, and Wearables III, PC1195609 (7 March 2022); https://doi.org/10.1117/12.2608363

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