1 2251-7189 Shahid Sadoughi University of Medical Sciences, Yazd 1228 occupational medicine The effect and Follow – up results of 8 weeks of operational-skill training on the dynamic balance of firefighters Mahmoudi Mohammad Sahebozamani Mansour Akoochakian Mahdieh 1 8 2023 15 2 1 11 02 02 2023 07 06 2023 Introduction: Rescue worker is one of the jobs that is associated with stressful factors. Among the relief occupations, firefighters are faced various physical and chemical hazards, such as high temperatures, chemicals, noise, etc., due to their responsibilities for firefighting and safety services. Therefore, the main goal of this research was the effect and follow–up results of 8 weeks of operational-skill training on the dynamic balance of firefighters. Materials and Methods: The subjects of the research were 34 male firefighters of Tehran who had at least five years of continuous shift experience in the experimental group with an age range of 29.00±2.55 years, height of 178.41±4.62 cm, weight 77.39±4.66 kg, and body mass index 16. 24.31±1 kg per square meter, and in the control group with an age range of 28.71±2.39 years, height 177.47±3.32 cm, weight 76.00±4.12 kg, and body mass index 02/0 were 24.13±1 kg/m2, were selected. Results: The functional balance board of firefighters was used to evaluate dynamic balance. The research base was in the 114th station of the Tehran fire department. The analysis of the data obtained from the research was done by the statistical method of analysis of variance with repeated measures and to compare two groups by Bonferroni's post hoc test at the error level of 0.05 and using SPSS software version 24. According to the results of the research, after the intervention, there was a significant difference in the experimental group (p≥0.05); but no significant difference in the control group (p≤0.05). Conclusion: Operational-skill training can improve and promote the important factors of injury prevention (fatigue, reaction time, and balance) among firefighters. Therefore, fatigue can affect reaction time and imbalance, which will result in musculoskeletal injuries among firefighters, so it is recommended to improve the mentioned factors of injury prevention. And for the lasting effect, operational skill exercises should be used. Finally, it can be said that operational-skill exercises can improve the dynamic balance of firefighters.  
1249 occupational medicine Investigating the relationship between sleep quality and stress, anxiety and depression in shift workers of one of the food industries Dehghan Banadaki Faeze Safari Variani Ali Varmazyar Sakineh 1 8 2023 15 2 12 19 03 06 2023 16 07 2023 Introduction: Shift work among industrial workers can lead to poor sleep quality, which instead is associated with stress, anxiety, and depression. This study aimed to investigate the relationship between sleep quality and stress, anxiety, and depression in shift workers in one of the food industries. Materials and Methods: The participants in this descriptive-analytical study were 208 production line workers in one of the food industries. Data were collected using a demographic questionnaire, Pittsburgh Sleep Quality Questionnaire (PSQI), and depression, anxiety, and stress (DASS-21). Spearman's statistical test was used to investigate the relationship between sleep quality and depression, anxiety, and stress. The data were analyzed using SPSS-23 software. Results: About 42% of workers reported undesirable sleep quality (score more than 5). Almost half of the workers reported a level of normal stress, anxiety, and depression. The results showed that there is a positive and significant correlation between sleep quality and stress (r=0.20, P<0.01) and sleep quality and depression (r=0.172, P≤0.01) so that the quality of sleep, stress, and depression interact with each other and have a mutual effect. Conclusion: According to the results of this study, reducing stress and depression can improve the sleep quality of workers, and in turn, good sleep quality can lead to reducing stress and depression in shift workers. Therefore, identifying the influencing factors and corrective strategies to reduce stress, anxiety, and depression can play an important role in improving the sleep quality of shift workers.   1243 Safety and occupational accidents Investigation of the relationship between biorhythms and occupational accidents severity in a chemical industry, 2009-2022 Halvani Gholamhossein h Soleimani Abbas Sadri Esfahani Ali Akhavan Afarin Mortazavi Morteza l Jafari Nodoushan Mahdi m h Shahid Sadoughi University of Medical Sciences l Shahid Sadoughi University of Medical Sciences m Shahid Sadoughi University of Medical Sciences 1 8 2023 15 2 20 28 02 05 2023 19 07 2023 Introduction: Occupational accidents have several life and financial consequences in industries. Among the causes of accidents, human error and unsafe behavior are known as the most important factors. Studies showed that biorhythms affect human errors and occupational accidents. This study aimed to investigate the relationship between biorhythms and the severity of occupational accidents in the chemical industry.   Materials and Methods: This study investigated chemical industry accidents from 2009-2022. After removing the incomplete reports, 279 accidents report was collected. The investigated accidents were classified into two groups major and minor. Information related to the biorhythms cycles was analyzed using Natural Biorhythm software. Data analysis was done using SPSS-24. Results: The investigation of accidents showed that 115 and 164 people were involved in major and minor accidents, respectively. In this study, in the critical state of the intellectual cycle, the number of major accidents was significantly higher than minor accidents (P=0.009). In the investigation of morning shift work accidents, the relationship between the critical state of the intellectual cycle and the severity of accidents was confirmed (P=0.004). We found no significant relationship between physical and emotional cycles with the severity of accidents.  Conclusion: The results of the present study showed that the critical days of the intellectual biorhythm are related to the severity of occupational accidents. It is recommended to conduct more studies on different jobs and duties to clarify the exact relationships between the variables.  1240 Ergonomics Investigating the impact of ergonomics training in reducing musculoskeletal discomfort among office workers abbasi ali mohamad bahmanipour sara rahimi mina rashidi zahra sayyadi hojjat 1 8 2023 15 2 29 37 10 04 2023 14 06 2023 Introduction: Office workers, regardless of educational principles, may be exposed to musculoskeletal injuries due to the nature of their work. Therefore, the present study was conducted to investigate the effect of ergonomics training in reducing musculoskeletal disorders among the administrative staff of an Ilam University of Medical Sciences campus. Materials and Methods: In this descriptive-analytical study, 178 administrative staff of Ilam University of Medical Sciences Campus 1 was examined. Musculoskeletal disorders were evaluated using the Nordic questionnaire. Ergonomic risk factors of the workplace were assessed by Rapid Administrative Strain Assessment (ROSA) before and after the training. Data analysis was done through SPSS version 26 statistical software. Results: According to the findings obtained from the Nordic questionnaire, it was found that the most disorders in the past year were in the back (56.2%) and neck (55.6%) areas and the ROSA evaluation results showed that 24.4% of the subjects the study was at the ergonomic level with high risk. After the implementation of training programs, the results showed that the prevalence of disorders in 9 areas decreased. Also, demographic variables did not have a significant effect on the prevalence of musculoskeletal disorders. (Significance level 0/05 is assumed) Conclusion: The results of this study showed that ergonomic training can be an effective method to reduce musculoskeletal discomfort in office work environments.   1260 General Competency framework of “inter-professional values and professionalism” in occupational health team Keshmiri Fatemeh Mehrparvar Amir Houshang Shahid Sadoughi University of Medical Sciences Shahid Sadoughi University of Medical Sciences 1 8 2023 15 2 38 46 25 01 2023 13 07 2023 Introduction: The present study aimed to develop the framework of inter-professional values and professionalism competencies in occupational health services. Materials and Methods:  This study was carried out at Shahid Sadoughi University of Medical Sciences, Yazd, in 2018-2018. In the first step, the framework of professionalism and inter-professional competencies in different disciplines was reviewed. In the second step, the competencies and expectations of inter-professional professionalism were assessed through the viewpoints of participants through a focus group method. After that, the explored data was refined based on the principles of competency development. The initial version of the inter-professional professionalism framework was reviewed from the perspective of different stakeholders.  Results: In the first step, 39 competencies were explored. In the second phase, 12 competencies were proposed and added to the framework. The inter-professional values and professionalism competency framework was explained with 51 competencies in six areas of altruism, justice, accountability, excellence, respect, and integrity. Conclusion: Providing occupational health services is complex activities that were influenced by multiple stakeholders. Explaining the components of inter-professional professionalism in six core domains as a road map would assist occupational health service providers.   1245 Ergonomics Evaluation of the physical condition and the amount of musculoskeletal disorders in Ganjovian using the REBA and ROSA methods Dezful hospital employees Alamshah Ensieh Sadat Milasi Zahra Mazaheri Maryam Moradi mehr Yasin Sabaghiyan Parya Iran University of Medical Sciences Ahvaz University of Medical Sciences Dezful University of Medical Sciences Dezful University of Medical Sciences Shahid Beheshti University of Medical Sciences 1 8 2023 15 2 47 57 07 05 2023 24 07 2023 Introduction: The most common occupational diseases are musculoskeletal disorders that happen with improper body posture while performing job duties. The present study aimed to determine the prevalence of musculoskeletal disorders and evaluate the physical condition of hospital employees using REBA and ROSA methods. Materials and methods: This descriptive-analytical study was conducted on 125 employees of Dezful teaching hospital, selected by stratified random sampling method. Musculoskeletal disorders were assessed using the Nordic questionnaire, and Rapid Entire Body Assessment (REBA)، and Rapid Office Strain Assessment (ROSA) methods were used to assess physical condition. The normality of the data was checked using Kolmogorov-Smirnov test. Statistical analysis was done with SPSS version 23 software. Results: The average age and work experience were 36.49±8.26 and 7.33±11.8 years, respectively. The highest prevalence of musculoskeletal disorders was related to the neck (47.7%) and wrist (40.4%), and the lowest was the elbow (7.8%). According to the REBA score, 18.3% of posture workers needed immediate corrections, and 37.8% needed corrections as soon as possible. According to the ROSA score, in 75.8% of the tasks, the work environment should be re-evaluated. There was a significant relationship (P-value<0.05) between wrist, shoulder, and neck disorders with gender, height, age, work history, and posture. Conclusion: Considering the prevalence of musculoskeletal disorders and the high level of risk among employees, it is recommended to modify the workstation and train employees.   1231 General The physical activity development model of Mobarake steel company employees Lotfi Foroushani Mojtaba salimi mehdi mostahfezian mina soltan hosseini mohammad Department of Physical Education and Sports Science, Najafabad Branch, Islamic Azad University, Najafabad, Iran. Associate professor in sport management, Sport sciences Faculty, University of Isfahan, Isfahan, Iran. Associate professor in sport management, Sport medicine research center, Najafabad Branch, Islamic Azad University, Najafabad, Iran Associate professor in sport management, Sport sciences Faculty, University of Isfahan, Isfahan, Iran. 1 8 2023 15 2 58 71 19 02 2023 30 05 2023 Introduction: Human capital is one of the most important resources of an organization, and as a result, organizations strive to increase their productivity. Since employees' health contributes to it, this study aimed to determine the physical activity development model of Mobarake Steel Company employees. Materials and Methods: The current research is descriptive-analytical. It is a kind of exploratory and applied research that helps to solve the problem in Mobarake Steel Company of Isfahan. The statistical population in this research in the qualitative part includes all specialists, managers, and experts of Mobarake Steel Company as well as knowledgeable academic staff members who have expertise or experience in the field of human resources policy and sports management. Also, in the quantitative part, all the employees of Foulad Mobarakeh formed the statistical population of the research. The research tools in the qualitative and quantitative part were made by the researcher and based on the components extracted from the library studies and the results from the interviews, respectively. The research method in the qualitative part was Glazer's approach data model and in the quantitative part confirmatory factor analysis. The validity of the formal method and reliability was also confirmed through retesting. Data analysis was done using SPSS version 26 and SmartPLS software. Results: Evaluation of the obtained model using model fit indices has shown that the model was suitable (SRMR, 0.186, Chi-square, 341.256, and NFI, 0.087). Also, the final dimensions of the model include the psychosocial environment with the dimensions of promoting sports and physical activity and encouragement and support, the physical environment with the dimensions of providing infrastructure and active company, health resources with the dimensions of program alignment and evaluation and monitoring and company participation with the dimensions of management and Planning was achieved. Conclusion: Considering the comprehensive health program, considering the calendar and regular sports program, creating culture and forming a sports team with a dynamic environment, monitoring related instructions, forcing employees to evaluate physical health and monitoring the progress of physical activity development programs, managers' support, per capita allocation Appropriate exercise and ergonomics of control rooms and related equipment such as chairs and computers and things such as the level of lighting and even per capita dedicated space for employees and encouraging employees can be the results of the implementation of this research model.   1248 General The impact of combined exercises in the workplace on body composition and some psychological indices of female employees after the COVID-19 pandemic Naderi Khadjeh Ghaffari Mehdi Banitalebi Ebrahim Shahrekord University Shahrekord University Shahrekord University 1 8 2023 15 2 72 83 31 05 2023 30 06 2023 Abstract Introduction: After the covid-19 pandemic, the immobility of people and the reduction of their physical activities increased. It seems necessary to maintain the motivation of employees to perform physical activity after this period because an employee's job in normal conditions is characterized by inactivity and inactivity. As a result, it affects the physical and mental health of the person, and following this event mentioned features intensified. The purpose of this research is to investigate the effect of combined exercises in the workplace on the fat profile and psychological indicators of female employees after the end of the Covid-19 disease. Materials and methods: This study is semi-experimental and applied, which was conducted on female employees of Shahrekord University in 1401. Thirty people were divided into two experimental (15 people) and control (15 people) groups randomly by inviting cooperation. The 12-week sports intervention was carried out three times a week, and each session lasted from 30 minutes to a maximum of one hour. The psychological indicators before and after the exercises, were evaluated by the relevant questionnaires. To measure the biochemical variables, blood samples (5 cc) were taken before and 48 hours after the end of the intervention. A correlation T-test was used for intra-group comparisons. An independent T-test was used for inter-group comparisons at a significance level of 0.05 using SPSS software. Results: The findings showed that combined exercises in the work environment significantly improved the quality of life (p=0.001), sleep quality (p=0.001), mental well-being (p=0.001), belonging to work (p=0.001) and resilience (p=0.011) in the experimental group compared to the control. Also, no significant difference was observed in HDL (P=0.184), LDL (P=0.902), cholesterol (P=0.511), and triglyceride (P=0.268). Conclusion: Workplace combined exercises can significantly improve the employees' quality of life, sleep, and psychological issues. These results are important for managers and organizations to consider programs to maintain employees' mental and physical health, especially where viral diseases such as Covid-19 impact employee health. But it did not affect blood lipids (HDL, LDL, triglycerides, and cholesterol), which may be due to the low intensity and duration of the exercise and lack of control over the subjects' nutrition.