Comparison of the measurements of exposure to risk factors of low back pain in present working conditions of scaffolders and supervisors
| Scaffolders (n=60) | Supervisors (n=20) | ||||||
|---|---|---|---|---|---|---|---|
| Mean | SD | Mean | SD | ||||
| Postural load: | |||||||
| Awkward back posture: bent and twisted over 45o 2-150 (% of working time) | 7.7 | 6.7 | 1.6 | 2.9 | |||
| One or two arms raised2-150 (% of working time) | 27.1 | 14.7 | 2.3 | 3.7 | |||
| Lifting or carrying loads >5 kg2-150 (% of working time) | 22.2 | 8.1 | 0.4 | 0.3 | |||
↵2-150 Student t test and Mann-WhitneyU test, p<0.05.