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A. Prastowo, Nawanto
Department of Physiology, Atmajaya University School of Medicine, Jakarta
Medicine & Pharmacology

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Pengaruh Waktu Latihan terhadap Peningkatan Aktivitas Fibrinolisis pada Latihan Aerobik Intensitas Sedang A. Prastowo, Nawanto
Jurnal Kedokteran YARSI Vol 16, No 1 (2008): JANUARI - APRIL 2008
Publisher : Lembaga Penelitian Universitas YARSI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (200.314 KB) | DOI: 10.33476/jky.v16i1.226

Abstract

The incremental of tissue-type plasminogen activator (t-PA) level during aerobic exercise is affected by time of the day. Previous studies showed that high intensity of aerobic exercise in the afternoon increased t-PA level higher than exercise in the morning. The purpose of this study was to examine the influence of time of the day on t-PA level during moderate intensity of aerobic exercise. Subjects were 16 sedentary, aged 25-35 years, healthy untrained male, performed two sessions of static ergocycling at 65-70% heart rate maximal (220-age), both in the morning (06.30-08.30) and in the afternoon (15.00-17.00) at least on two days interval. Wilcoxon signed rank test showed t-PA level increased significantly after exercise in the morning (P=0.00) and in the afternoon (P=0.00), but showed no significant difference in the magnitude of t-PA incremental (triangle t-PA) between post-exercise in the morning and in the afternoon (P=0.14). It was concluded that time of the day did not affect the magnitude of the tPA incremental in moderate intensity of aerobic exercise.
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