AU - Khani Jazani, Reza AU - Saremi, Mahnaz AU - Rasouli Kahaki, Zeinab AU - Sanjari, Mohammad Ali AU - Kavousi, Amir TI - Effect of flooring and footrest on muscle fatigue and discomfort in prolonged standing activities PT - JOURNAL ARTICLE TA - IOH JN - IOH VO - 11 VI - 3 IP - 3 4099 - http://ioh.iums.ac.ir/article-1-1069-en.html 4100 - http://ioh.iums.ac.ir/article-1-1069-en.pdf SO - IOH 3 AB  -   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 CP - IRAN IN - Hakimieh, Tehran, Iran 77309961 LG - eng PB - IOH PG - 10 PT - Applicable YR - 2014