Table 2.
Within-group means baseline to 4 month follow-up for each group, between-group difference (mean ± standard error) from and percentage change relative to the baseline mean of the randomised population of cleaners (N = 116)
| Aerobic exercise | Reference | Δ | % | SE | 95% CI | p | n | |||
|---|---|---|---|---|---|---|---|---|---|---|
| Baseline | 4 months | Baseline | 4 months | |||||||
| Work ability | 9.32 | 9.33 | 9.27 | 9.27 | 0.06 | 0.65 | 0.26 | − 0.46 to 0.58 | 0.83 | 111 |
| Productivity | 9.04 | 9.37 | 9.09 | 9.20 | 0.18 | 1.95 | 0.28 | − 0.38 to 0.73 | 0.53 | 111 |
| Need for recovery | 56.1 | 53.8 | 59.1 | 58.4 | − 4.6 | − 7.9 | 3.8 | − 12.0 to 2.9 | 0.23 | 110 |
| Rating of perceived exertion | 7.83 | 7.98 | 8.00 | 8.69 | − 0.70 | − 5.38 | 0.36 | − 1.41 to 0.00 | 0.05 | 111 |
Between-group 95% confidence interval and level of significance are reported. n differs between the different outcomes due to missing observations in covariate and/or outcome variables. All outcomes are adjusted for baseline value of the respective outcome, age, sex (male), smoking status (never smoked and/or currently non-smoking), length of service and level of leisure time physical activity (< 2 h per week light activity)