“…Most participants in studies on WPA were engaged in administrative functions in either the public 15,[19][20][21]23,24,26,27,29,32,39,46,55 or the private sector 7,18,38,40,41,44,45,47,50,52,53 . The remainder of the samples included employees working in industrial production 6,18,34,36,41,42,48,52 , civil construction 17 , storage 18,36,50 , general services 27,32,33 , call centers 28,43 , as urban public transport drivers 51 , and also university students 52 . The latter was an experimental study, for this reason the participants were not workers as in the other studies.…”