A total of 197 workers wore for 1-4 days to measure arm elevation.
Unsupported arm elevation is a factor in the prevention of .
Supported arm elevation is more likely to occur during sitting compared to standing.
No occupational group exhibited higher arm elevation at work than during leisure activities.
Excluding arm elevation during sitting revealed significantly higher arm elevation at work for construction workers, garbage collectors, manufacturing workers, and domestic cleaners.
Whole workday measurements of arm elevation may not reliably assess risk for neck and shoulder pain without considering body posture.
Simplified
Regarding prevention of (NSP), unsupported arm elevation is one factor that should be taken into account when performing work risk assessment. can be used to measure arm elevation over several days but it is not possible to differentiate between supported and unsupported arm elevation from accelerometers only. Supported arm elevation is more likely to exist during sitting than standing. The aim of the study was to evaluate the use of whole workday measurements of arm elevation with accelerometers to assess potentially harmful work exposure of arm elevation, by comparing arm elevation at work with arm elevation during leisure, in a population with diverse work tasks, and to assess how the exposure parameters were modified when upper arm elevation during sitting time was excluded. The participants, 197 workers belonging to 12 occupational groups with diverse work tasks, wore triaxial accelerometers on the dominant arm, hip, and back for 1-4 days to measure arm elevation and periods of sitting. None of the groups were found to have higher exposure to arm elevation during work compared to leisure. Even though some occupations where known to have work tasks that forced them to work with elevated arms to a large extent. A high proportion of arm elevation derived from sitting time, especially so during leisure. When arm elevation during sitting time was excluded from the analysis, arm elevation was significantly higher at work than during leisure among construction workers, garbage collectors, manufacturing workers, and domestic cleaners. Together this illustrates that it is not suitable to use whole workday measurments of arm elevation with accelerometer as a sole information source when assessing the risk for NSP due to arm elevation. Information on body posture can provide relevant contextual information in exposure assessments when it is known that the potential harmful exposure is performed in standing or walking.
Key numbers
197
Workers in Study
Total number of workers from 12 occupational groups analyzed.
3316
Work Hours Measured
Total hours of arm posture data collected during work.
3312
Leisure Hours Measured
Total hours of arm posture data collected during leisure.
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