Title page for ETD etd-06102004-101211

Type of Document Dissertation
Author Guillory, Ivan Kenyon
Author's Email Address iguillo@yahoo.com
URN etd-06102004-101211
Title The Effect of Beta-Carotene, Vitamin E, and Vitamin C Supplementation upon Work Capacity during a Protocol of Arm Curl Exercise Using the Biodex Dyanamometer
Degree Doctor of Philosophy (Ph.D.)
Department Kinesiology
Advisory Committee
Advisor Name Title
Arnold G Nelson Committee Chair
Dennis Landin Committee Member
Michael Keenan Committee Member
Robert Wood Committee Member
Fakhri Kareem Al-Bagdadi Dean's Representative
  • beta-carotene
  • vitamin c
  • vitamin e
  • exercise
  • work
Date of Defense 2004-04-06
Availability unrestricted
The effect of acute and chronic supplementation upon work capacity in trained and untrained subjects was examined using 10 normal healthy subjects (ages 19-23). The subjects were tested using a double-blind crossover design. During the two supplemental stages subjects ingested either the placebo or antioxidant mixture capsules (beta-carotene, vitamin C, vitamin E). There was a 28 day washout period between the two supplemental stages. Subjects were tested during each stage for an acute effect (one day of supplementation) and chronic effect (twenty-eight days of supplementation). Testing consisted of seven sets of arm curl exercises with a 60-second rest period between each set. Work, during the last three sets of each phase, was recorded and compared for each subject. Hypotheses tested was whether an acute (one day) and chronic (28 days) supplementation protocol would have an effect upon work capacity in untrained as compared to trained subjects. No significant differences were seen after acute or chronic supplementation in either trained or untrained subjects. However, power for the study was too low to make a determination without a high risk of Type II error. Significant subject dropout and work measure variability contributed to the low power.
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