Hardian Hardian
Department of Physiology, Faculty of Medicine, Universitas Diponegoro, Semarang, Indonesia

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THE EFFECT OF INTERMITTENT FASTING ON SLEEP QUALITY AMONG MEDICAL STUDENTS AT DIPONEGORO UNIVERSITY Nursabrina Marsya Safiqah Amansyah; Yuswo Supatmo; Hardian Hardian; Martha Ardiaria
Jurnal Kedokteran Diponegoro (Diponegoro Medical Journal) Vol 14, No 4 (2025): JURNAL KEDOKTERAN DIPONEGORO (DIPONEGORO MEDICAL JOURNAL)
Publisher : Faculty of Medicine, Universitas Diponegoro, Semarang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jkd (dmj).v14i4.49140

Abstract

Background: Intermittent Fasting (IF) is a type of fasting where a person alternates between fasting and eating within specific time intervals. Medical students tend to have poorer sleep quality compared to students from other faculties. This can negatively affect their academic performance, as well as their physical and mental health. While intermittent fasting is known to offer various health benefits, its effect on sleep quality in medical students has not been widely studied. Therefore, further research is needed to explore the impact of intermittent fasting on sleep quality among medical students. Objective: To determine the effect of intermittent fasting on the sleep quality of medical students. Methods: This study employed a quasi-experimental design with a one-group pretest-posttest design. The sample consisted of 24 medical students from the Faculty of Medicine, Diponegoro University, Semarang. The sample was selected using purposive sampling based on predetermined criteria. In this study, the intervention involved intermittent fasting using the 12:12 Time Restricted Feeding method. Fasting started from 6 PM to 6 AM on Mondays, Wednesdays, and Fridays for three consecutive weeks. Data analysis on sleep quality before and after the intervention was conducted using the Paired Sample T-Test. The correlation between confounding variables, such as stress levels and physical activity levels, and sleep quality was analyzed using Spearman's correlation test. Results: There was a significant decrease in the global PSQI score after the participants underwent intermittent fasting compared to before, with a p-value < 0.05 (p = 0.05 (p = 0.493). Conclusion: Intermittent fasting can improve the sleep quality of medical students.
THE ASSOCIATION BETWEEN SERUM VITAMIN D LEVELS AND LIPID PROFILES AMONG PEOPLE WITH EPILEPSY Santoso Jaeri; Elisabeth Shanti Regita Putri; Caraka Adhika Rahardjo; Alivia Azka Fadhilah; Arinta Puspita Wati; Lusiana Batubara; Hardian Hardian
Jurnal Kedokteran Diponegoro (Diponegoro Medical Journal) Vol 15, No 2 (2026): JURNAL KEDOKTERAN DIPONEGORO (DIPONEGORO MEDICAL JOURNAL)
Publisher : Faculty of Medicine, Universitas Diponegoro, Semarang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/dmj.v15i2.54625

Abstract

  Background and Purpose: Epilepsy, a neurological condition, is defined by the occurrence of unprovoked seizures on at least two occasions, with a minimum interval of 24 hours separating the initial and subsequent events. Individuals diagnosed with epilepsy frequently exhibit vitamin D deficiency, which influences various metabolic processes, including modifications to lipid profiles. Despite this, the precise relationship between serum vitamin D levels and lipid profiles continues to be a subject of ongoing investigation. This study aimed to examine the correlation between serum vitamin D concentration and lipid profiles. Methods: A cross-sectional study design was employed, encompassing 29 patients with epilepsy who were treated at the outpatient clinic of the Department of Neurology, Diponegoro National Hospital, Semarang. Participants were divided into two groups based on their serum vitamin D levels: the vitamin D deficiency group (n=9) and the vitamin D insufficiency group (n=20). Demographic and clinical information was gathered, vitamin D levels were measured using ELISA, and lipid profiles were assessed using spectrophotometry. A chi-square analysis was conducted to explore the relationship between serum vitamin D levels and lipid profiles in patients with epilepsy. Results: The average vitamin D concentration was 13.45 ± 5.74 ng/mL, with all participants showing deficient vitamin D. Examination of lipid profiles indicated mean values for total cholesterol at 183.76 ± 38.34 mg/dL, LDL cholesterol at 103.55 ± 34.92 mg/dL, HDL cholesterol at 48.72 ± 15.98 mg/dL, and triglycerides at 158.14 ± 104.48 mg/dL. Statistical analysis revealed that LDL levels were significantly elevated in the group with insufficient vitamin D (p = 0.029), while there were no significant differences in triglyceride, total cholesterol, or HDL levels. Statistical analysis revealed that LDL levels were significantly elevated in the group with insufficient vitamin D (p = 0.029), while there were no significant differences in triglyceride, total cholesterol, or HDL levels. Conclusion: There may be a link between low vitamin D levels and adverse LDL cholesterol levels; however, further research is required to confirm this.