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9 March 2020 Effects of respiratory muscle endurance training on cerebral hemodynamics and self-reported effort perceptions during maximal exercise (Conference Presentation)
Johnna Somerville, Timothy Schwab, Brian Duffels, Chelsea Pelletier, R. Luke Harris
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Proceedings Volume 11237, Biophotonics in Exercise Science, Sports Medicine, Health Monitoring Technologies, and Wearables; 112370K (2020) https://doi.org/10.1117/12.2549792
Event: SPIE BiOS, 2020, San Francisco, California, United States
Abstract
We investigated central fatigue during maximal exercise (EXmax) after 12×20-min respiratory muscle endurance training (eRMT) sessions over 4 weeks using cerebral near-infrared spectroscopy (NIRS; left, right prefrontal cortices: LPFC, RPFC); and self-reported effort perceptions (RPE). Healthy participants improved eRMT performance with no spirometry changes. Pre-eRMT, EXmax oxygenated (O2Hb), deoxygenated (HHb), and total (tHb) hemoglobin increases were larger in LPFC than RPFC. Post-eRMT, EXmax O2Hb, HHb, and tHb increases were smaller in LPFC than RPFC. Post-eRMT EXmax RPE were smaller. eRMT-induced LPFC-to-RPFC hemodynamic shifts during EXmax may facilitate decreased RPE.
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Johnna Somerville, Timothy Schwab, Brian Duffels, Chelsea Pelletier, and R. Luke Harris "Effects of respiratory muscle endurance training on cerebral hemodynamics and self-reported effort perceptions during maximal exercise (Conference Presentation)", Proc. SPIE 11237, Biophotonics in Exercise Science, Sports Medicine, Health Monitoring Technologies, and Wearables, 112370K (9 March 2020); https://doi.org/10.1117/12.2549792
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KEYWORDS
Hemodynamics
Near infrared spectroscopy
Spirometry
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