Akademik Veri Yönetim Sistemi
Neuroscience Letters, cilt.500, ss.44, 2011 (SCI-Expanded)
The purpose of this study was to investigate the possible role of
walking exercise and vitamin E supplementation on event-related
potentials in older people. Fifty-seven adults aged 60–85 years
were randomly assigned to one of four groups: sedentary control
(C), vitamin E (V), exercise training (E) and vitamin E under training
(EV). V and EV groups were received vitamin E at a dose of
900 IU/day P.O. for 6 months. Trained groups were subjected to
walking exercise involved 3 sessions per week for 6 months. Walking
duration was gradually increased during 8 weeks, and stayed
constant until the end of training period. Participants were begun
walking at % 70 heart rate reserve for 20 min/day at the first two
weeks, and walking duration was increased by 5 min/day of each
week until subjects were reached a level of 50 min/day by week
8. Latency and amplitude measurements of N1, P2 and N2 components
of event-related potentials were performed on all study
groups both before and after training. Data were analyzed using
repeated measure’s of ANOVA and expressed as±SD, statistical significance
was considered at the p < 0.05 level. P2 and N2 latency
and amplitude results were found unaltered among all groups.
Although significant improvement in N1 latency and amplitude
measurements was found both in Fz and Cz region in E group,
unaltered values were obtained in V and EV groups. In conclusion,
vitamin E supplementation has no additive effect to that of walking
exercise training on N1 component of event-related potentials.