Postures and biomechanical constraints in the study (defined at baseline; self assessed)
| *Two categories: repetitively, versus not repetitively or never. |
| †Two categories: frequently versus infrequently. |
| ‡Not studied for men, fewer than 20 exposed. |
| §Not studied for women, fewer than 20 exposed. |
| Tighten with force* |
| Work with force, other than tighten* |
| Press with the hand* |
| Hit*‡ |
| Pull* |
| Hold in position* |
| Use of a hand held tool*§ |
| Bending forward† |
| Working with arms above shoulder level† |
| Use of vibrating tools: yes (irrespective of frequency) or no‡ |
| Exposure to cold: often or always, versus seldom or never. |