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 analysis 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 concluded 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.