Non-significant changes were reported for most health- and work-related outcomes .
Findings suggest that activity-permissive workstations can be effective to reduce occupational sedentary time , without compromising work performance .
Excessive sedentary time is detrimentally linked to obesity , type 2 diabetes , cardiovascular disease and premature mortality .
Studies have been investigating the use of activity-permissive workstations to reduce sedentary time in office workers , a highly sedentary target group .
This review systematic ally summarizes the evidence for activity-permissive workstations on sedentary time , health-risk biomarkers , work performance and feasibility indicators in office workplaces .
Postural load during VDU work: a comparison between various work postures.
The aim of this study was to compare the postural load during VDU work in the following work postures : ( 1 )  Supporting and not supporting the forearms on the table top  , ( 2 )  Sitting and st and ing positions  , and ( 3 )  Sightline to the centre of the screen at an angle of 15 degrees and 30 degrees below the horizontal . The muscle load from the upper part of musculus trapezius and from the lumbar part of musculus erector spinae ( L3 level ) was measured by electromyography ( EMG ) .  Postural angles of head , upper arm and back were measured by inclinometers . The load on m. trapezius when using the keyboard was significantly less in sitting with supported forearms compared to sitting and st and ing without forearm support . Further , the time and number of periods when the trapezius load was below 1 % MVC was significantly greater with support versus no support . The load on the right erector spinae lumbalis was also significantly less and the time when the load was below 1 % MVC was significantly longer in a sitting work position with support versus st and ing without support . In addition , when using a mouse supporting the forearms reduced the static trapezius load in sitting . The results from this study document clearly the importance of giving the operator the possibility of supporting the forearms on the table top
Non-significant changes were reported for most health- and work-related outcomes .
Findings suggest that activity-permissive workstations can be effective to reduce occupational sedentary time , without compromising work performance .
Excessive sedentary time is detrimentally linked to obesity , type 2 diabetes , cardiovascular disease and premature mortality .
Studies have been investigating the use of activity-permissive workstations to reduce sedentary time in office workers , a highly sedentary target group .
This review systematic ally summarizes the evidence for activity-permissive workstations on sedentary time , health-risk biomarkers , work performance and feasibility indicators in office workplaces .