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Matthew R Feeback_DissertationIV.pdf (1.12 MB)

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Physiological Differences Before, During and After Hypoxic Exercise Between African-American and Caucasian Males

Feeback, Matthew R
http://rave.ohiolink.edu/etdc/view?acc_num=kent1385043374

Abstract Details

2013, PHD, Kent State University, College of Education, Health and Human Services / School of Health Sciences.
Abstract Introduction: Hypoxia is a potent stimulus that induces neuropsychological and physical impairments in humans. It is documented that ethnic differences exists across various physiological parameters. There appears to be a varying metabolic response across ethnicities, specifically African-Americans and Caucasians. Purpose: To further elucidate physiological and cognitive performance differences between African-American (AA) and Caucasian individuals (CAU) before, during or after hypoxic and normoxic exercise. Methods: Twelve college aged (18-25) apparently healthy African-American (six volunteers) and Caucasian (six subjects) males took part in two trials consisting of normobaric normoxia and normobaric hypoxia (12% oxygen). Each subject cycled at 50% of their altitude adjusted VO2max (-26% of normoxia VO2max) for one hour after a two-hour baseline. Subjects were monitored for cerebral and arterial O2 saturation, as well as the Trail Making Test A and B (TMT) psychomotor performance. Results: Arterial saturation proved to be significantly higher in AA (86.0±4.7) compared to CAU (79.5±4.8) during the first 60 minutes of exposure to hypoxia at rest (p=0.039), but not during exercise. Cerebral oxygenation to the left frontal lobe was decreased near the conclusion and 30 minutes after normoxic exercise. TMT B data revealed that CAU (79±12.7) had faster scores than the AA subjects (98±25.1) at all time points and was significantly different at the 115 minute time point of the hypoxic trial (p=0.024). Conclusion: Data suggests that before, during and after normobaric normoxia and hypoxia trial there is a differential response between AA and CAU in regards to arterial and cerebral oxygenation and psychomotor tests.
Ellen Glickman (Advisor)
John McDaniel (Committee Member)
John Gunstad (Committee Member)
69 p.
Kinesiology

Recommended Citations

Citations

  • Feeback, M. R. (2013). Physiological Differences Before, During and After Hypoxic Exercise Between African-American and Caucasian Males [Doctoral dissertation, Kent State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=kent1385043374

    APA Style (7th edition)

  • Feeback, Matthew. Physiological Differences Before, During and After Hypoxic Exercise Between African-American and Caucasian Males. 2013. Kent State University, Doctoral dissertation. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=kent1385043374.

    MLA Style (8th edition)

  • Feeback, Matthew. "Physiological Differences Before, During and After Hypoxic Exercise Between African-American and Caucasian Males." Doctoral dissertation, Kent State University, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=kent1385043374

    Chicago Manual of Style (17th edition)

kent1385043374
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© 2013, all rights reserved.
This open access ETD is published by Kent State University and OhioLINK.