2008 Student Research Conference:
21st Annual Student Research Conference

Gender Differences in Respiratory Exchange Ratio During Submaximal Exercise Test
Morgan N. Clennin*, Lauren M. Kremer , and Anna C. Love
Dr. Alex J. Koch, Faculty Mentor

Purpose: The purpose of this study was to compare the respiratory exchange ratio (RER) between genders during a submaximal exercise test to observe differences in substrate utilization during oxidative metabolism. Methods: Nine college students completed a standardized submaximal bike test after fasting. The metabolic cart was utilized to measure subject's RER during a five minute exercise bout. Pre- and post-exercise oxygen consumption was also recorded. Independent t-tests were used to analyze RER in each exercise bout. Results: A significant difference in RER between genders was observed during the post-exercise bout (F= .186, p = 0.046). Further analysis revealed that females have a higher RER during exercise recovery. The study revealed no significant difference between gender RER during pre-exercise and exercise bouts. Conclusion: These data indicate that there is a significant difference in the RER between genders during post-exercise bouts; females exhibit a higher RER; hence women utilize more carbohydrates.

Keywords: Respiratory Exchange Ratio , Submaximal Test , Gender Differences, Substrate Utilization

Topic(s):Exercise Science

Presentation Type: Poster

Session: 7-2
Location: OP Lobby
Time: 4:15

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