The purpose of this investigation was to examine the effects of vitamin E supplementation on lipid peroxidation, muscle damage, muscle soreness and physical performance following repeated bouts of whole body resistance exercise. Eighteen active males were randomly assigned to receive either vitamin E (1200 IU per day) or placebo for 31 days. Following 21 days of supplementation, subjects engaged in 3 resistance exercise sessions, separated by 3 days rest (EX-1, EX-2 and EX-3 on days 22, 25 and 28, respectively). Plasma malondialdehyde concentrations did not peak until the morning prior to EX-3 in the vitamin E (VE) group (10.0 ± 0.6 µmol/L) and the day following EX3 in the placebo (P) group (9.6 ± 0.9 µmol/L), with no significant differences between groups. Creatine kinase activity was significantly elevated the day following EX-1 in both groups. The VE group had a near 2-fold greater CK peak as compared to the P group the day following EX-1 (404 ± 49 and 214 ± 60 U/L, respectively), but the two groups had similar CK values by day 31 (113 ± 35 and 107 ± 36 U/L, respectively). Muscle soreness was significantly increased for each group the day after EX-1 with no significant differences between groups.Furthermore, there were no significant differences between groups in muscle strength, power or endurance. The results of the present study do not indicate any positive effect of vitamin E supplementation against lipid peroxidation, muscle damage or muscle soreness as a result of repeated days of resistance exercise. In addition, vitamin E did not have an effect on muscular performance. / Fisher Institute for Wellness and Gerontology
| Identifer | oai:union.ndltd.org:BSU/oai:cardinalscholar.bsu.edu:handle/186989 |
| Date | January 2001 |
| Creators | Whelan, Dana L. |
| Contributors | Gobble, David C. |
| Source Sets | Ball State University |
| Detected Language | English |
| Format | v, 93 leaves : chart, facsims. ; 28 cm. |
| Source | Virtual Press |
| Coverage | n-us--- |
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