Perbandingan Kadar Natrium Serum Sebelum Dan Sesudah Aktivitas Fisik Intensitas Berat

Abstract

: Sodium is the main cation within the extracellular fluid. During vigorous physical activity transpiration occurs resulting in elevation of sodium concentration in extracellular fluid if there is not enough fluid intake. This study aimed to obtain the difference between the blood serum sodium level before and after the vigorous physical activity. This was an experimental study with one group pretest and posttest design. Samples were obtained by using simple random sampling. There were 21 male medical students evaluated their blood serum sodium level. The mean of blood serum sodium level before the physical activity was 140.62 mEq/L and after the physical activity was 143.24 mEq/L. The paired sample t-test showed that there was a significant correlation between the physical activity and the blood serum sodium (p=0.005). Conclusion: There was a difference between the blood serum sodium levels before and after vigorous physical activity