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A study of hand anthropometry dimensional on middle-aged women and male in Hamadan
Rashid Heidarimoghadam, Mehrane Shabani, Younes Lotfi, Fakhradin Ghasemi, Younes Mohammadi,
Volume 6, Issue 2 (Journal of Ergonomics 2018)
Abstract
Introduction: One of the factors affecting carpal tunnel syndrome (CTS) is the lack of coordination and appropriateness of these tools. Designing a handy tool helps with a better performance, befitting and less fatigue. In this study, anthropometric data on the hands (right and left) of women and men were collected.
Materials & Methods: This research was descriptive and 576 people participated in this study; 10 anthropometric measurements of the hand according to the principles of measurement of Pheasant were measured by digital caliper under the same conditions. The measured anthropometric dimensions were the length of the hands and palms, the width of the hands and palms, the length of the fingers (m1-m2-m3-m4-m5) and the maximum power grip. Descriptive indices such as percentile 5, 50 and 95, maximum and minimum, mean and standard deviation were calculated using SPSS software.
Results: 290 women and 286 men participated in this study. Mean and standard deviation of age was (40.58 ± 9.95), height (1.66 ± 1.14) and BMI (26.85 ± 4.50). 90.8% were right handed and (9.2%) were left handed. The mean difference in length of hand, palm length, hand width, thumb length, middle finger length, small finger length, maximum power grip of women and men were statistically significant (P<0.01). All dimensions of the hand in men were larger than women.
 Conclusion: Anthropometric dimensions are influenced by factors such as gender, age, genetics, and even type of nutrition, occupation, and other factors. The size of the dimensions of the hands of women and men are different. Anthropometric database of two communities should be used to design handheld devices that are commonly used by both women and men. The findings can be used to design and redesign any hand tools and improve the convenience of users.
 

Structural Modeling of Relationship Among Ethical Climate, Emotional Exhaustion with Job Satisfaction and Turnover Intention
Zahra Lotfi, Mohammad Hassani, Mahdi Najjari,
Volume 9, Issue 2 (Iranian Journal of Ergonomics 2021)
Abstract
Background & Objectives: Ethical atmosphere and burnout of employees is an important issue for the management of the organization and management should play a key role in improving the performance of employees and the organization. The present study aimed to model the structural relationship between ethical atmosphere and emotional exhaustion with job satisfaction and turnover intention.
Methods: The present study is an applied research in terms of purpose and descriptive-correlational in terms of the data collection method. The statistical population includes 125 employees of the West Azerbaijan Gas Company who were surveyed by census method. The data collection tool was a questionnaire. Confirmatory factor analysis and Cronbach's alpha method were used to evaluate the validity and reliability of measuring instruments. Structural equation modeling using Smart PLS software was done to analyze the data.
Results: The results of the determined coefficients showed that the ethical atmosphere was able to explain more than 22% of the changes in emotional exhaustion. Also, emotional exhaustion can explain more than 44% of the changes in job satisfaction and 18% of the changes in the desire to leave the job. The coefficient of morale's impact on job satisfaction with emotional exhaustion was also 0.07. And the impact coefficient of the ethical atmosphere on the desire to leave the job with an emotional exhaustion was also -0.09.
Conclusion: Improving the ethical atmosphere of the organization and reducing the emotional burnout of employees leads to job satisfaction and commitment of employees, and as a result, the performance of employees and the organization improves.


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