The effects of treadmill exercise on penicillin-induced epileptiform activity
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Submission date: 2014-08-07
Final revision date: 2014-09-25
Acceptance date: 2014-10-20
Online publication date: 2016-08-24
Publication date: 2016-08-31
Arch Med Sci 2016;12(5):935-940
Introduction: The aim of this study was to evaluate the effects of short-, moderate- and long-duration treadmill exercise (15, 30 and 60 min) on the mean frequency and amplitude of penicillin-induced epileptiform activity in rats.
Material and methods: In this study, 32 rats were assigned to 15, 30, and 60 min running exercise groups and the control group, each consisting of 8 rats. According to the specified protocol, the rats were submitted to running exercises at the same hour of each day for 90 days. After the exercise program, the rats were administered (500 IU/2.5 µl) of penicillin into the left cortex by the microinjection method. An electrocorticogram (ECoG) recording was performed for 3 h using a data acquisition system. The frequency and the amplitude of the recordings were analyzed.
Results: Short-duration treadmill exercise (15 min) caused a decrease in the frequency of penicillin-induced epileptiform activity at 70 min after penicillin injection (p < 0.001). The mean frequency of epileptiform activity decreased at 90 min after penicillin injection in the 30 and 60 min treadmill exercise groups (p < 0.01). The mean amplitude of epileptiform activity was not changed in any of the exercise groups compared to the control (p > 0.05).
Conclusions: The results of the present study demonstrate for the first time that short-, moderate- and long-duration treadmill exercises decreased the frequency of penicillin-induced epileptiform activity. These findings may contribute to improving the quality of life in epileptic patients.
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