Table 1.
Description of the randomised study population of cleaners at baseline (N = 116), stratified by intervention group
| Aerobic exercise (n = 57) | Reference (n = 59) | p | |||||
|---|---|---|---|---|---|---|---|
| Mean | SD | n | Mean | SD | n | ||
| Age (years) | 44.9 | 9.2 | 45.7 | 8.1 | > 0.05 | ||
| Sex (% females) | 75.4 | 43 | 76.3 | 45 | > 0.05 | ||
| Height (m) | 1.63 | 0.09 | 1.62 | 0.08 | > 0.05 | ||
| Weight (kg) | 69.7 | 12.7 | 71.7 | 15.4 | > 0.05 | ||
| BMI (kg/m2) | 26.2 | 4.0 | 27.1 | 4.9 | > 0.05 | ||
| Length of service (years) | 12.3 | 8.7 | 11.5 | 6.8 | > 0.05 | ||
| Current smoker (%) | 22.8 | 13 | 25.4 | 15 | > 0.05 | ||
| Leisure time physical activity (% < 2 h/week light activity or light activity 2‒4 h/week) | 78.9 | 45 | 66.1 | 39 | > 0.05 | ||
| Physical activity at work (% of standing/walking work, including lifting and strenuous physical work) | 63.2 | 36 | 57.6 | 34 | > 0.05 | ||
| Cardiorespiratory fitness (mlO2 min−1 kg−1) | 24.8 | 5.8 | 25.0 | 7.2 | > 0.05 | ||
| Work ability (scale 0–10) | 9.35 | 1.72 | 9.19 | 1.65 | > 0.05 | ||
| Productivity (scale 0–10) | 9.12 | 2.13 | 9.37 | 1.82 | > 0.05 | ||
| Need for recovery (scale 0–100) | 53.9 | 28.0 | 61.4 | 25.4 | > 0.05 | ||
| Rating of perceived exertion (scale 6–20) | 12.9 | 3.2 | 13.1 | 3.3 | > 0.05 | ||