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International Journal of Occupational Hygiene، جلد ۹، شماره ۲، صفحات ۰-۰
عنوان فارسی
چکیده فارسی مقاله
کلیدواژه‌های فارسی مقاله
عنوان انگلیسی Evaluating the fatigue rate of lower leg muscles during prolonged standing: a comparison between stable and unstable footwear
چکیده انگلیسی مقاله It is well established that unstable footwear with a rounded sole design have the potential to alter lower limb muscle activity during standing and walking activities. Thus, the main objective of this study was to compare lower leg muscles fatigue rates between stable and also unstable footwear during prolonged standing. Ten young healthy man were participated in this study. During 2 h of continuous standing with two footwear conditions (stable and unstable shoes), surface electromyography (EMG) data of bilateral tibialis anterior (TA) and medial gastrocnemius (MG) muscles were continuously collected. The probability of muscle fatigue was identified through recording simultaneous increase in the EMG amplitude and shift in the EMG frequency spectrum towards lower frequencies. Analysis of EMG recordings revealed that standing with stable shoe significantly yielded higher rates of muscle fatigue for bilateral MG muscles. Furthermore, no significant differences were observed for the fatigue rates of TA muscles between two footwear conditions. However, none of monitored muscles were indicated fatigue during standing with unstable shoe. The results suggested that unstable footwear, compared to stable one, more efficient to prevent the occurrence of muscle fatigue which seemed to be advantageous for the musculoskeletal system. Therefore, unstable footwear can be recruited as ergonomic intervention for individuals whose stand for prolonged periods.
کلیدواژه‌های انگلیسی مقاله
نویسندگان مقاله زانیار کریمی | zanyar karimi
department of occupational health engineering, school of public health, tehran university of medical sciences, tehran, iran.

سازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (Tehran university of medical sciences)

محمود رضا آذغانی | mahmood reza azghani
b department of biomechanics, faculty of mechanical engineering, sahand university of technology, tabriz, iran

سازمان اصلی تایید شده: دانشگاه صنعتی سهند (Sahand university of technology)

تیمور الهیاری | teimour allahyari
c department of occupational health, school of health, urmia university of medical sciences, urmia, iran

سازمان اصلی تایید شده: دانشگاه علوم پزشکی ارومیه (Urmia university of medical sciences)

حمیدرضا خلخالی | hamidreza khalkhali
department of epidemiology and biostatistics, school of health, urmia university of medical sciences, urmia, iran

سازمان اصلی تایید شده: دانشگاه علوم پزشکی ارومیه (Urmia university of medical sciences)

نشانی اینترنتی http://ijoh.tums.ac.ir/index.php/ijoh/article/view/260
فایل مقاله اشکال در دسترسی به فایل - ./files/site1/rds_journals/190/article-190-408788.pdf
کد مقاله (doi)
زبان مقاله منتشر شده en
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نوع مقاله منتشر شده Original Article(s)
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