Abstract
OBJECTIVE: It is unknown if aerobic exercise overloads or improves the cardiovascular system among workers with high occupational physical activity. This was investigated in a worksite randomized controlled trial (RCT) of aerobic exercise among cleaners.
METHODS: We randomized 116 cleaners between 18-65 years. The aerobic exercise group (N=57) performed worksite aerobic exercise (30 minutes twice a week) and the reference group (N=59) received lectures. Cardiorespiratory fitness, blood pressure (BP) and diurnal heart rate (HR) for measuring aerobic workload [% HR reserve (% HRR)] were collected at baseline and after four months. A repeated measure 2×2 multi-adjusted mixed-model design was applied to compare the between-group differences in an intention-to-treat analysis.
RESULTS: Between-group differences (P.
Original language | English |
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Journal | Scandinavian Journal of Work, Environment & Health |
Volume | 41 |
Issue number | 2 |
Pages (from-to) | 140-152 |
Number of pages | 13 |
ISSN | 0355-3140 |
DOIs | |
Publication status | Published - 2015 |