%0 Journal Article %A Khani Jazani, Reza %A Saremi, Mahnaz %A Rasouli Kahaki, Zeinab %A Sanjari, Mohammad Ali %A Kavousi, Amir %T Effect of flooring and footrest on muscle fatigue and discomfort in prolonged standing activities %J Iran Occupational Health Journal %V 11 %N 3 %U http://ioh.iums.ac.ir/article-1-1069-en.html %R %D 2014 %K Electromyography, Discomfort, Ergonomic Flooring, Fatigue, Prolonged Standing., %X   Background and aims: prolongedstanding without significantmoving is a requirement of many jobs and is a known factor of causing musculoskeletal disorders that cause pain and discomfort in lower extremitiesand back discomfort.The purposeofthisstudy was to comparethe effects of cerami c surface,flooring andfootreston discomfort and muscle fatigue lower extremities during long- standing activities.   Methods : Thiscross-sectional study was carried out on15 student s with mean(SD) age of 21.5 ± (2.3 ) andmean height of 163± (2.8). Participants attended 3 sessions each lasting one hours. They stood on threedifferentsurfaces: ceramic, rubber flooringandfootrest.Surfaceelectromyographywas usedto assess themuscle fatigue. Body map and visual analog scale were employed to evaluate discomfort ratings of the lower extremitiesand the back . Dataanalyzseswere performedusingANOVA -R.   Results: Based onthe results ofelectromyography, there was no significant difference between soleus and lateral gastrocnemius muscles fatigue and type of surfaces.   There wasa significant differencebetween thesurfaces(p %> http://ioh.iums.ac.ir/article-1-1069-en.pdf %P 10-21 %& 10 %! %9 Applicable %L A-10-1030-1 %+ Faculty of Health, Safety and Environment Shahid Beheshti University %G eng %@ 1735-5133 %[ 2014