Is objectively measured sitting at work associated with low-back pain? A cross sectional study in the DPhacto cohort

Scandinavian Journal of Work, Environment & Health

Mette Aadahl¹  SvendErik Mathiassen¹  Marie Birk Jørgensen¹  Andreas Holtermann¹  David M Hallman¹  Mette Korshøj² 

[1] ;National Research Centre for the Working Environment (NRCWE), Lersø Parkallé 105, 2100 Copenhagen, Denmark.;

关键词: inactivity;    temporal pattern;    occupational sitting;    sedentary;    accelerometer;    time pattern;    sitting at work;    dphacto cohort;    low-back pain;    dphacto;    musculoskeletal disorder;    back pain;    occupational health;    physical activity;    pain;    musculoskeletal pain;    musculoskeletal disease;   

DOI  :  10.5271/sjweh.3680

来源: DOAJ

【 摘 要 】

OBJECTIVES: Low-back pain (LBP) is a substantial health challenge due to the risk for long-term sickness absence and early retirement. Several biomechanical exposures at work, including sitting, have been suggested to increase the risk for LBP. The objectives of this study were to determine (i) the extent to which temporal patterns and total amount of objectively measured sitting is associated with LBP intensity and (ii) whether selected modifiers influence these associations. METHODS: This cross sectional study uses baseline data from the Danish PHysical ACTivity cohort with Objective measurements (DPhacto) of physical activities in the cleaning, transport and manufacturing sectors. Peak intensity of LBP was collected by questionnaire on a 0–10 scale and sitting was expressed in terms of total duration and temporal pattern, ie, time spent in brief bursts (≤5 minutes), moderate periods (>5–≤20 minutes), and prolonged periods of sitting (>20 minutes); both during work and whole day (waking hours only). Associations were determined using linear regression in models accounting for moderation and confounding. Factors evaluated as moderators or confounders were assessed by questionnaire. RESULTS: The population consisted of 704 participants. No significant associations were found between total duration or temporal patterns of sitting and LBP intensity, neither during work nor for the whole day. Body mass index (BMI) significantly moderated the association between sitting and LBP; participants with a high and low BMI showing a negative and positive association, respectively. CONCLUSION: Sitting was not independently associated with peak LBP intensity, suggesting other exposures are more powerful risk factors for LBP.

【 授权许可】

Unknown