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Proceedings Paper

Effects of respiratory muscle endurance training on cerebral hemodynamics and self-reported effort perceptions during maximal exercise (Conference Presentation)

Paper 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.

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, 112370K (9 March 2020); doi: 10.1117/12.2549792
Show Author Affiliations
Johnna Somerville, Univ. of Northern British Columbia (Canada)
Timothy Schwab, Univ. of Northern British Columbia (Canada)
Brian Duffels, Univ. of Northern British Columbia (Canada)
Chelsea Pelletier, Univ. of Northern British Columbia (Canada)
R. Luke Harris, Univ. of Northern British Columbia (Canada)


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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