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    The effect of a worksite based walking programme on cardiovascular risk in previously sedentary civil servants

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    Authors
    Murphy, Marie H.
    Murtagh, Elaine M.
    Boreham, Colin A.G.
    Hare, Lesley G.
    Nevill, Alan M.
    Issue Date
    2006
    
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    Abstract
    Background: A significant proportion of Europeans do not meet the recommendations for 30 mins of physical activity 5 times per week. Whether lower frequency, moderate intensity exercise alters cardiovascular disease (CVD) risk has received little attention. This study examined the effects of 45 minutes self-paced walking, 2 d· wk-1 on aerobic fitness, blood pressure (BP), body composition, lipids and C-Reactive Protein (CRP) in previously sedentary civil servants. Methods: 37 subjects (24 women) aged 41.5 ± 9.3 years were randomly assigned to either two 45 minute walks per week (walking group) or no training (control group). Aerobic fitness, body composition, blood pressure (BP), CRP and lipoprotein variables were measured at baseline and following 8 weeks. Steps counts were measured at baseline and during weeks 4 and 8 of the intervention. Results: Compared to the control group, the walking group showed a significant reduction in systolic BP and maintained body fat levels (P < 0.05). There were no changes other risk factors. Subjects took significantly more steps on the days when prescribed walking was performed (9303 ± 2665) compared to rest days (5803 ± 2749; P < 0.001). Conclusion: These findings suggest that walking twice per week for 45 minutes at ~ 62% HRmax, improves activity levels, reduces systolic BP and prevents an increase in body fat in previously sedentary adults. This walking prescription, however, failed to induce significant improvements in other markers of cardiovascular disease risk following eight weeks of training.
    Citation
    BMC Public Health, 6 : 136
    Publisher
    BioMed Central
    Journal
    BMC Public Health
    URI
    http://hdl.handle.net/2436/30396
    DOI
    10.1186/1471-2458-6-136
    Additional Links
    http://www.biomedcentral.com/1471-2458/6/136
    Type
    Journal article
    Language
    en
    ISSN
    14712458
    ae974a485f413a2113503eed53cd6c53
    10.1186/1471-2458-6-136
    Scopus Count
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    Faculty of Education, Health and Wellbeing

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