Effect of Eight Weeks of Aerobic Exercise and Vitamin D Consumption on Fatigue and Job Performance Index of Imam Reza Hospital Staff in Kermanshah

Objectives: The aim of this study was to investigate the effect of eight weeks of aerobic exercise and vitamin D consumption on fatigue and performance of Imam Reza Hospital staff in Kermanshah. Methods: In this quasi-experimental study, 48 men and 48 women were randomly selected with a mean age of 41.25 ± 2.43 y, mean weight 76.50 ± 12.56 kg and BMI = 25.5 ± 2.153 kg/m2. Subjects divided into four groups (24 participants in each group) including: 1, Exercise group; 2, Exercise group with vitamin D supplementation (50,000 units per week); 3, Vitamin D group; and 4, Control group. The subjects exercised 3session per week for 30 - 60 min at 60 - 75 % of maximum heart rate for eight weeks. Employees job performance, appetite, quality of work life and lipid profile were assessed before and after the intervention. one-way analysis of variance as well as dependent t-test were used to examine the data at a significance level of (P < 0.05). Results: Our results showed that there was a significant difference in the LDL and triglyceride variables between the three experimental groups with control group, but this change in HDL was not significant. Also, aerobic exercise and vitamin D intake have a significant effect on fatigue, job performance and quality of life. Conclusions: According to the results of the present study, it can be said that aerobic exercise combined with vitamin D consumption can increase the capacity of employees to withstand job stress in the workplace and improve their general health to some extent.