‘Kneeling and stooping’ is perceived among workers in both occupations perceived as the most important factor related to knee complaints (among 63/74 (85%) of the bricklayers and 28/37 (76%) of the supervisors).
Among the workers in both occupations, several participants reported other causes for their MSD. Most of these other causes were not work-related causes, including sports activity (n=12) or neural symptoms after a disc herniation (n=10). None of the bricklayers reported distress as a cause or aggravator of their MSD, whereas seven of the supervisors did.