Physical Education
Vahid Kazemizadeh; Naser Behpour
Volume 28, Issue 4 , September and October 2021, , Pages 569-580
Abstract
Introduction: Sleep deprivation is one of those factors that affect the energy intake and appetite of individuals. It is reported that sleep deprivation affected by certain hormones (e.g. insulin, Leptin, ghrelin, and cholecystokinin, etc.) that are involved in energy balance may affect body weight through ...
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Introduction: Sleep deprivation is one of those factors that affect the energy intake and appetite of individuals. It is reported that sleep deprivation affected by certain hormones (e.g. insulin, Leptin, ghrelin, and cholecystokinin, etc.) that are involved in energy balance may affect body weight through appetite. The purpose of this study was to investigate the effect of 30-hours sleep deprivation on the response of leptin and ghrelin levels to an Exhaustive activity among active male students.Materials and Methods: Among the active male students of Razi University of Kermanshah, 20 undergraduate students were selected through convenience sampling and participated in the study. Subjects were evaluated by simple randomized cross-sectional design in two situations.Results: Information related to the comparison of post-test and pre-test in two experimental (sleep deprivation) and control (adequate sleep) situations showed that leptin hormone in sleep deprivation conditions decreased compared to rest conditions (9.4 %) And ghrelin hormone in experimental conditions increased compared to control conditions (2.04%) and this difference is considered significant at the level (p = 0.0012). Insomnia also caused significant changes in physiological parameters (VO2max, heart rate, blood pressure, time to exhaustion, etc.).Conclusion: 30 hours of sleep deprivation decreased leptin and at the same time increased ghrelin, which indicates the importance of night sleep, which is one of the influential factors associated with obesity and overweight.
Gyneocology
ashraf saber mashhad taraqi; Najmeh Tehranian; Somayeh Yousefi; Anoshrvan Kazemnejad
Volume 26, Issue 3 , September and October 2019, , Pages 337-343
Abstract
Background and Aims: one of the hormones that appears to play an important role in regulating body growth is ghrelin. This study aimed to determine the association between Maternal serum ghrelin level and neonatal anthropometric indicators at birth.Materials & Methods: In this cohort study, 35 eligible ...
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Background and Aims: one of the hormones that appears to play an important role in regulating body growth is ghrelin. This study aimed to determine the association between Maternal serum ghrelin level and neonatal anthropometric indicators at birth.Materials & Methods: In this cohort study, 35 eligible pregnant women in their first trimester that were allocated by Using Convenience sampling were divided and matched in terms of BMI before pregnancy into normal and higher than normal BMI groups A ( n=14) and B ( n=21). Serum ghrelin level was measured during 6-12 and 15-20 weeks of gestation using ELISA method.Results: Mean non-fasting serum gherlin level (first and second trimesters) had not significant deference between two groups (p1=0.93, p2=0.76, in first and second trimester, respectively). Also there is a ascending increase in mean serum ghrelin level with increasing gestational age from the first to the second trimesters in both groups but was not significant (pa=0.15, pb=0.24, in A and B group, respectively). No significant correlations were detected between non-fasting serum gherlin level (first and second trimesters) and neonatal anthropometric indicators.Conclusion: The lack of any direct relationship between Maternal serum ghrelin level and neonatal anthropometric indicators does not support the hypothesis that ghrelin has major role in foetal growth