دوره 8، شماره 3 - ( فصلنامه تخصصی انجمن ارگونومی و مهندسی عوامل انسانی ایران 1399 )                   جلد 8 شماره 3 صفحات 48-58 | برگشت به فهرست نسخه ها


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Mahdavi N, Faradmal J, Dianat I, khotanlou H, Haidari Moghadam R. Investigating the Relationship Between the Risk of Psychosocial Factors and Grip Fatigue of Employees with Manual Tasks. Iran J Ergon. 2020; 8 (3) :48-58
URL: http://journal.iehfs.ir/article-1-731-fa.html
مهدوی ندا، فردمال جواد، دیانت ایمان، ختن لو حسن، حیدری مقدم رشید. بررسی رابطۀ بین ریسک‎فاکتورهای روانی‌اجتماعی و خستگی چنگش کارکنان دارای وظایف دستی. مجله ارگونومی. 1399; 8 (3) :48-58

URL: http://journal.iehfs.ir/article-1-731-fa.html


گروه ارگونومی، مرکز تحقیقات بهداشت و ایمنی شغلی، دانشکدۀ بهداشت، دانشگاه علوم پزشکی همدان، همدان، ایران ، Dr_haidari@yahoo.com
چکیده:   (692 مشاهده)
زمینه و هدف: خستگی مشکلی بسیار شایع در میان کارکنان است. خستگی عضلانینیز به عنوان یکی از پیامدهای خستگی عمومی ناشی از ریسک‎فاکتورهای متعددی است. این مطالعه با هدف توصیف خستگی عضلانی کارکنان دارای وظایف دستی مختلف و یافتن رابطه آن با ریسک‎فاکتورهای روانی-اجتماعی انجام شد.
روش کار: در این مطالعه برای تعیین میزان کاهش در نیروی چنگش (یا خستگی)، از دینامومتر هیدرولیک جامار استفاده شد.  نیروی چنگش دست راست و چپ 157 آزمودنی دارای معیارهای ورود، در سه سطح شغلی، طی یک شیفت کاری8 ساعته، سه بار ثبت شد. ریسک‎فاکتورهای روانی-اجتماعی نیز با استفاده از پرسشنامه روانی-اجتماعی کوپنهاگن ارزیابی و رابطه آنها با نیروی چنگش و خستگی چنگش مورد بررسی قرار گرفت.
یافته‎ها: به ترتیب 61%، 62% و 69% کارکنان مشاغل دارای وظایف سبک، متوسط و سنگین در فاز دوم مطالعه خستگی چنگش را تجربه کردند. به نظر می‎رسد با بیشتر شدن نیرو/سرعت موردنیاز و سخت‎تر شدن انجام وظایف، خستی چنگش بیشتری در دست راست شاهد خواهیم بود. روند کاهشی نیروی چنگش و افزایش خستگی چنگش، در مشاغل سنگین مشهودتر بود. هیچ‎گونه همبستگی متوسط یا قوی بین ریسک‎فاکتورهای روانی-اجتماعی با خستگی چنگش مشاهده نشد.
نتیجه‎گیری: کارکنان مشاغل دارای وظایف دستی سنگین به علت ماهیت شغل آن‎ها (نیاز به اعمال نیروی زیاد) نسبت به کارکنان سایر سطوح شغلی، خستگی چنگش بیشتری در دست راست خود تجربه نمودند. نمی‎توان نتیجه‎گیری قاطعی در مورد تأثیر ریسک‎فاکتورهای روانی-اجتماعی بر خستگی چنگش ارائه نمود. بررسی تأثیر بارهای شناختی شغل و ابعاد آنتروپومتری دست بر خستگی چنگش می‎تواند موضوعی جذاب برای مطالعات آینده باشد.
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نوع مطالعه: پژوهشي | موضوع مقاله: عمومى
دریافت: 1399/3/8 | پذیرش: 1399/6/6 | انتشار الکترونیک: 1399/7/1

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