Background: Sleep disturbance is a disorder that includes a lack of quantity and quality of sleep. Students, especially medical students, have a high risk of getting sleep disorders of poor sleep quality and quantity. Poor sleep quality can interfere with memory. Besides, poor sleep quality also results in fatigue, which can lead to increased reaction time.Aim: To determine the relationship between sleep quality and short-term memory and reaction time in first-year medical students of Diponegoro University.Methods: This Observational study used a cross-sectional design with first-year medical students of Diponegoro University as the subjects. Kolmogorov-Smirnov was applied as the normality test, then the hypothesis test between sleep quality and short-term memory used the Pearson Chi-Square test, while sleep quality and reaction time used the Mann-Whitney U test. Results: Two hundred students participated in the study. Eighty two people (41%) had good sleep quality, 118 people (59%) had poor sleep quality. The p value of the relationship between sleep quality and short-term memory showed insignificant result (p=0.791). Meanwhile, the Mann-Whitney test to measure the relationship between sleep quality and reaction time was also insignificant (p=0.270).Conclusion: There is no significant relationship between sleep quality with reaction time and short-term memory in first-year medical students of Diponegoro University.
Gas pollutants that accumulate in the room with restricted air circulation may cause respiratory system disorders. A pregnane glycoside compound from Sansevieria can reduce the pollutants. This study aims at producing gels from Sansevieria extract to neutralize indoor gas pollutants. Sansevieria extract is produced by the maceration process with composition 8 g simplicia and 100 ml ethanol 96%. The extract was processed into the gel with a 20% concentration. The gel was applied to rats (Rattus norvegicus) Wistar strain induced by cigarette, coal, and mosquito smoke with positive control and treatment groups. After 8 days, the Gross examination and histopathology of lungs and liver were observed quantitatively. MDA levels were measured with the TBARS method. Data were analyzed by independent sample T-test and Mann-Whitney test with p-value considered significant if <0,05. Gross examination of lungs showed a significant difference between the treatment and control group that was induced by coal smoke (p=0.031), and mosquito smoke (p=0.006), and the liver’s gross of cigarette smoke (p=0.040). Histopathology of lungs showed a significant difference in mosquito smoke (p=0.032) and no significant difference in histopathology of the liver. MDA levels showed significant difference in coal smoke (p=0.020) and mosquito smoke (p=0.000). In conclusion, anti pollutant gel reduces MDA levels and damage of the lungs induced by pollutants.
Background: Dental caries is a multifactorial illness caused by bacteria. Lactobacillus acidophilus is one of the bacteria causing caries, where it continues the caries process. That is why the antibacterial agent is needed. A cherry (Muntingia calabura) is fruit having many benefits for health, which one of them is as an antibacterial agent. It contains flavonoid, tannin, alkaloid, and terpenoid, which can function as the antibacterial agent. Aim :The study aimed to determine the influence of cherry (Muntingia Calabura) extract in preventing the growth of L.acidophilus. Method: True experimental laboratory with a post-test only control group design and 24 samples. Cherries were extracted by using maceration. Then, the phytochemical test was conducted to discover antibacterial substances. The antibacterial test was done by using the dilution method to know Minimum Inhibitory Concentration (MIC) and Minimum Bactericidal Concentration (MBC). Results: Minimum Inhibitory Concentration (MIC) could not be seen, and Minimum Bactericidal Concentration (MBC) showed that all concentration 6,25%, 12,5%, 25%, and 50% and positive control were able to kill a bacterium L. acidophilus. Conclusions: There is an influence of cherry extract on the grow
Introduction : Explosive power are the combination maximum strength and maximum velocity. High value of muscle strength and velocity can lead to good measurement of explosive power. Plyometrics training known as an exercise that can increased explosive power. This exercise is really popular among athletes and has proven to increase their explosive power. However, there’s still no further study that measured explosive power on medical students after given plyometrics training treatment. Methods : Quasi experimental study of plyometrics training has done for 6 weeks to medical students Diponegoro University. 28 subjects was divide into 2 groups : plyometrics training (as treatment group) and control group (as non-treatment group). Vertical jump test score was measurement in pre-test, middle-test, and post-test. The explosive power measured by vertical jump test. The results were analyzed by SPSS software. Results : The explosive power improved among subjects in plyometrics treatment group. During the plyometrics treatment, vertical jump was singnificantly increase during treatment in pre-test to mid-test (35.93 cm to 49,21 cm ; P : <0.001) and mid-test to post-test measurement (49.21 cm to 54.21 cm ; P : <0.001). Vertical jump score significantly increase in plyometrics group compare to control group ; on middle-test (<0.001 vs 0.344 ; P 0.019) and post-test (<0.001 vs 729 ; P 0.001) measurement respectively. Conclusions : Plyometrics training improved lower limb explosive power in male medical students of Diponegoro University. This is marked by significantly increase among subjects in plyometrics treatment group.Keywords: Plyometrics Training, Explosive Power, Vertical Jump Test
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