Thus , WIs were seldom design ed to improve return-to-work .
Overall , there was low quality evidence that showed no significant differences between WIs and no intervention for pain prevalence or severity .
If present , significant results in favour of WIs were not sustained across follow-up times .
Overall , this review found low quality evidence that neither supported nor refuted the benefits of any specific WI for pain relief and moderate quality evidence that a multiple-component intervention reduced sickness absence in the intermediate-term , which was not sustained over time .
BACKGROUND Musculoskeletal disorders are the most common cause of disability in many industrial countries .
Recurrent and chronic pain accounts for a substantial portion of workers ' absenteeism .
Neck pain seems to be more prominent in the general population than previously known .
OBJECTIVES To determine the effectiveness of workplace interventions ( WIs ) in adult workers with neck pain .
The effect of forearm support on musculoskeletal discomfort during call centre work.
Using a computer keyboard with the forearms unsupported has been proposed as a causal factor for  neck/shoulder and arm/h and diagnoses . Recent laboratory and field studies have demonstrated that forearm support might be preferable to working in the traditional " floating " posture . The aim of this study was to determine whether providing forearm support when using a normal computer workstation would decrease musculoskeletal discomfort in intensive computer users in a call centre . A r and omised controlled study ( n = 59 ) , of 6 weeks duration was conducted . Thirty participants ( Group 1 ) were allocated to forearm support using the desk surface with the remainder ( Group 2 ) acting as a control group . At 6 weeks , the control group was also set up with forearm support . Both groups were then monitored for another 6 weeks . Question naires were used at 1 , 6 and 12 weeks to obtain information about discomfort , workstation setup , working posture and comfort .  Nine participants ( Group 1 n = 6 , Group 2 n = 3 ) withdrew within a week of commencing forearm support either due to discomfort or difficulty in maintaining the posture . At 6 weeks , the group using forearm support generated significantly fewer reports of discomfort in the neck and back , although the difference between the groups was not statistically significant . At 12 weeks , there were fewer reports of neck , back and wrist discomfort when preintervention discomfort was compared with post intervention discomfort . These findings indicate that for the majority of users , forearm support may be preferable to the " floating " posture implicit in current guidelines for computer workstation setup
Thus , WIs were seldom design ed to improve return-to-work .
Overall , there was low quality evidence that showed no significant differences between WIs and no intervention for pain prevalence or severity .
If present , significant results in favour of WIs were not sustained across follow-up times .
Overall , this review found low quality evidence that neither supported nor refuted the benefits of any specific WI for pain relief and moderate quality evidence that a multiple-component intervention reduced sickness absence in the intermediate-term , which was not sustained over time .
BACKGROUND Musculoskeletal disorders are the most common cause of disability in many industrial countries .
Recurrent and chronic pain accounts for a substantial portion of workers ' absenteeism .
Neck pain seems to be more prominent in the general population than previously known .
OBJECTIVES To determine the effectiveness of workplace interventions ( WIs ) in adult workers with neck pain .