RT Journal Article SR Electronic T1 Enhanced oxidative stress in workers with a standing occupation JF Occupational and Environmental Medicine JO Occup Environ Med FD BMJ Publishing Group Ltd SP 548 OP 550 DO 10.1136/oem.2003.008805 VO 61 IS 6 A1 R Flore A1 L Gerardino A1 A Santoliquido A1 R Pola A1 A Flex A1 C Di Campli A1 P Pola A1 P Tondi YR 2004 UL http://oem.bmj.com/content/61/6/548.abstract AB Background: Several epidemiological studies have shown a statistically significant association between standing work and chronic venous insufficiency of lower limbs. This condition has been associated with an enhanced oxidative stress that, according to the literature, could represent a risk factor for cardiovascular and other systemic diseases. Aims and Methods: To evaluate venous pressure of the lower limbs and reactive oxygen species (ROS) before and after work in 62 workers with a standing occupation (surgery room nurses) and 65 outpatient department nurses who can walk during their working time. Results: After work, a statistically significant increase of venous pressure of the lower limbs levels was observed in both the study group and controls. Standing workers showed significantly higher mean levels of ROS after work.