%0 Journal Article
%T Effect of specific resistance training on forearm pain and work disability in industrial technicians: cluster randomised controlled trial
%A Gisela Sjˋgaard
%A Lars L Andersen
%A Markus D Jakobsen
%A Mette K Zebis
%A Mogens T Pedersen
%A Ole S Mortensen
%J -
%D 2012
%R 10.1136/bmjopen-2011-000412
%X Objectives To determine the effect of specific resistance training on forearm pain and work disability in industrial technicians.

Design and setting Two-armed cluster randomised controlled trial of 20ˋweeks performed at two industrial production units in Copenhagen, Denmark.

Participants Working-age industrial technicians both with and without pain and disability.

Interventions The training group (n=282) performed specific resistance training for the shoulder, neck and arm muscles three times a week. The control group (n=255) was advised to continue normal physical activity.

Outcome All participants rated forearm pain intensity (Visual Analogue Scale, 0每100ˋmm) once a week (primary outcome) and replied to a questionnaire on work disability (Disability of the Arm Shoulder and Hand, 0每100) at baseline and follow-up (secondary outcome).

Results Questionnaires were sent to 854 workers of which 30 (n=282) and 27 (n=255) clusters were randomised to training and control, respectively. Of these, 211 and 237 participants, respectively, responded to the follow-up questionnaire. Intention-to-treat analyses including both individuals with and without pain showed that from baseline to follow-up, pain intensity and work disability decreased more in the training group than in the control group (4每5 on a scale of 0每100, p<0.01每0.001). Among those with pain >30ˋmm Visual Analogue Scale at baseline (n=54), the OR for complete recovery at follow-up in the training group compared with the control group was 4.6 (95% CI 1.2 to 17.9). Among those with work disability >30 at baseline (n=113), the OR for complete recovery at follow-up in the training group compared with the control group was 6.0 (95% CI 1.8 to 19.8).

Conclusion Specific resistance training of the shoulder, neck and arm reduces forearm pain and work disability among industrial technicians.

Trial registration number NCT01071980
%U https://bmjopen.bmj.com/content/2/1/e000412