Perubahan Aktivitas Listrik Jantung pada Tikus yang Diberi Latihan Fisik Aerobik Serta Henti Latih

William , Dewi Irawati Soeria Santoso, Isdoni, Riki Siswandi

Research output: Contribution to journalArticlepeer-review

Abstract

Background: Aerobic training have long been known to give a good impact to body, aerobic training if been done routinely and with long period of time will make remodeling process to the heart. This remodeling process is not only occur in structure but also in heart electrical activity, several study reveal that this electrical activity may cause many form of aritmia, there also evidence that structural remodeling that also cause electrical changes is a persistent process, if structural remodeling persistent process, what will happen to heart electrical activity of this persistent structural remodeling after detraining is still less known. Methods: Electrocardiogram (ECG) is conducted in male Wistar rat that have completed 4 weeks, 12 weeks aerobic training, 4 weeks and 12 weeks aerobic training with 4 weeks detraining. The speed that been use is 20 m/minute with 20 minute training duration and 90 second intermitten resting interval for every 5 minute training. Results: There is no difference for P wave voltage and duration in all groups. R wave voltage is increase in 4, 12 weeks aerobic training group (p < 0.05). There is no significant difference for R wave voltage in detraining group. PR segment and interval is prolonged in 4, 12 weeks aerobic training group (especially in 4 weeks aerobic training group, p < 0.05). There is no significant difference for PR segment and interval in detraining group. Ventricular repolarization time (T wave duration, QT interval) is prolonged in 4, 12 weeks aerobic training group (especially in 4 weeks aerobic training group, p < 0.05). There is no significant difference for T wave duration and QT interval in detraining group. Resting heart rate is lower in 4, 12 weeks aerobic training group (especially in 4 weeks aerobic training group, p<0.05). There is no significant difference for resting heart rate in detraining group.Conclusion: Male Wistar rat heart electrical activity (QT interval, PR interval, T wave duration time and R wave voltage) and resting heart rate change after 4 weeks and 12 weeks aerobic training. Detraining restore that changes. Keywords: Heart electrical activity, Electrocardiogram (ECG), Aerobic training, Detraining
Original languageIndonesian
JournalJurnal Kedokteran Meditek
Publication statusPublished - 2015

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