The Office of Graduate Programs is pleased to announce that Johnna Somerville will be defending their thesis entitled “Effects of Respiratory Muscle Endurance Training on Cerebral Oxygenation and Hemodynamics, and Effort Perceptions During Maximal Exercise” as a candidate for the degree Master of Science in Community Health Science.  We encourage you to view the defence online. The details on the defence and how to join are included below.

DATE: July 21, 2020

TIME: 10:00 AM

LINK TO JOIN: https://unbc.zoom.us/j/93236582979?pwd=M2dDODBUckR2U0gxelNhVm13RHRyQT09

Meeting ID: 932 3658 2979

Password: 397912

To ensure the defence proceeds with no interruptions, please mute your audio and video on entry and do not share your screen inadvertently. The meeting will be locked to entry 5 minutes after it begins, ensure you are on time.

ABSTRACT: The primary objective of this study was to investigate the effects of a 4-week respiratory muscle endurance training (eRMT) program on the physiological and psychological aspects of central fatigue using, respectively, near-infrared spectroscopy (NIRS) and quantification of effort perceptions during maximal exercise. A secondary objective was to assess any impact of eRMT on respiratory healthy and exercise performance. This study compared pre- and post-eRMT data from the same group of healthy adults. The results indicated that eRMT did not have any effect on respiratory function, exercise time to exhaustion, or physiological responses to exercise but decreased RPE at the fifth minute of exercise. An increase in [O₂Hb], [HHb], and [tHb] during exercise was observed post-eRMT compared to pre-eRMT, and this increase differed by hemisphere. Based on these preliminary findings, we suggest an eRMT-induced left-to-right hemodynamic shift during exercise, consistent with the change from a novel task to a learned task.