Does aerobic exercise improve or impair cardiorespiratory fitness and health among cleaners? A cluster randomized controlled trial

Mette Korshøj Larsen, Mark Lidegaard, Jørgen H Skotte, Peter Krustrup, Niklas Krause, Karen Søgaard, Andreas Holtermann

34 Citations (Scopus)

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 languageEnglish
JournalScandinavian Journal of Work, Environment & Health
Volume41
Issue number2
Pages (from-to)140-152
Number of pages13
ISSN0355-3140
DOIs
Publication statusPublished - 2015

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