Table 2.
Weighted mean of physical work demands of 46 onshore maintenance petroleum workers during working hours of all workdays.
| Work-related physical activity | Time in % | SD | Time in minutes | SD | Mean %HRR | SD |
|---|---|---|---|---|---|---|
| Lying | 1.3 | 2.8 | 8.2 | 16.8 | 23.1 | 9.4 |
| Sitting | 48.2 | 16.5 | 283.2 | 115.4 | 23 | 6 |
| Static standing | 26 | 12.1 | 157.8 | 80.5 | 30.9 | 7.2 |
| Moving | 9.8 | 4.4 | 60.1 | 29.2 | 34 | 6.8 |
| Walking slowly | 3.2 | 2 | 19.5 | 13 | 34.5 | 6.4 |
| Walking fast | 7.1 | 3.1 | 43.7 | 21.7 | 36.2 | 6.3 |
| Running | 0.0 | 0.1 | 0.2 | 0.3 | 36.2 | 11.8 |
| Stair climbing | 1 | 0.7 | 5.9 | 4.4 | 40.9 | 8.3 |
| Cycling | 0.7 | 1.4 | 3.3 | 7.1 | 45.6 | 12 |
| Light intensity physical activity | 39 | 16.2 | 237.4 | 109.5 | 32 | 6.9 |
| Moderate to vigorous physical activity | 8.8 | 3.8 | 53.1 | 26.1 | 39.8 | 7.2 |
| Total physical activity | 47.8 | 17.8 | 290.5 | 124.5 | 35.1 | 7 |
| Demanding postures | Time in % | SD | Time in minutes | SD | – | – |
| Kneeling | 1.8 | 2.5 | 11.5 | 15.1 | – | – |
| Arm elevation ≥30° | 50.1 | 12.2 | 294.8 | 106.7 | – | – |
| Arm elevation while on feet ≥30° | 43.2 | 12.6 | 253.7 | 102.6 | – | – |
| Arm elevation ≥60° | 12.8 | 7.3 | 76.6 | 52.6 | – | – |
| Arm elevation while on feet ≥60° | 11.3 | 7.1 | 67.9 | 51.6 | – | – |
| Arm elevation ≥90° | 2.2 | 2.3 | 12.9 | 11.5 | – | – |
| Arm elevation while on feet ≥90° | 1.8 | 2.2 | 10.9 | 10.8 | – | – |
| Forward trunk inclination ≥30° | 19 | 11.8 | 113.5 | 76.8 | – | – |
| Forward trunk inclination while on feet ≥30° | 7.5 | 6.2 | 46.9 | 40.9 | – | – |
| Forward trunk inclination ≥60° | 3.9 | 6 | 21.0 | 20.3 | – | – |
| Forward trunk inclination while on feet ≥60° | 2.2 | 2.2 | 13.6 | 12.6 | – | – |
| Forward trunk inclination ≥90° | 0.6 | 0.8 | 3.9 | 5 | – | – |
| Forward trunk inclination while on feet ≥90° | 0.5 | 0.6 | 2.9 | 4 | – | – |
Values are means and standard deviations (SD). N: number; %HRR: heart rate reserve; LIPA: light intensity physical activity (static standing, moving, walking slowly); MVPA: moderate to vigorous physical activity (walking fast, running, stair climbing, and cycling); total activity: LIPA and MVPA combined.