%0 Journal Article
%T Is prolonged sitting at work associated with the time course of neck每shoulder pain? A prospective study in Danish blue-collar workers
%A Andreas Holtermann
%A David M Hallman
%A Marie Birk Jˋrgensen
%A Marina Heiden
%A Mette Korshˋj
%A Nidhi Gupta
%A Svend Erik Mathiassen
%J -
%D 2016
%R 10.1136/bmjopen-2016-012689
%X Objectives This study aimed to determine the extent to which objectively measured sitting time at work is associated with the course of neck每shoulder pain across 1ˋyear in blue-collar workers.

Methods Data were analysed from 625 blue-collar workers in the Danish PHysical ACTivity cohort with Objective measurements (DPHACTO) cohort study (2012每2013). Objective data on sitting time were collected at baseline using accelerometry. Self-reported pain intensity (numeric rating scale 0每10) in the neck每shoulder region was registered for 1ˋyear using repeated text messages (14 in total). Linear mixed models were used to determine the relationship between per cent time in sitting at work and trajectories of neck每shoulder pain, with and without adjustment for demographic, occupational and lifestyle factors, and baseline pain intensity.

Results More sitting time at work was associated with a faster decline in pain intensity over 12ˋmonths, as indicated by a statistically significant effect of sitting on pain trajectories in the crude (p=0.020) and fully adjusted models (p=0.027).

Conclusions In blue-collar workers, more sitting time at work was associated with a favourable development of pain intensity over time. The relationship between sitting at work and pain needs further investigation before explicit recommendations and guidelines on sedentary behaviour among blue-collar workers can be developed
%U https://bmjopen.bmj.com/content/6/11/e012689