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

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

doi:10.5271/sjweh.3475

Cited by 48 publications

(84 citation statements)

References 49 publications

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“…They observed increased cardiorespiratory fitness, lowered resting and sleeping heart rate, and reduced relative workload (heart rate reserve), but also significantly increased systolic blood pressure. The study10 supports the positive cardiovascular health effects from high LTPA among workers with high OPA reported from cohort studies, but also indicates that high LTPA may cause a potential cardiovascular overload among workers with high OPA.…”

supporting

confidence: 84%

“…A recent RCT10 investigated the effects of 1 h per week of aerobic exercise for 4 months offered during working hours on cardiovascular health indicators among cleaners. They observed increased cardiorespiratory fitness, lowered resting and sleeping heart rate, and reduced relative workload (heart rate reserve), but also significantly increased systolic blood pressure.…”

mentioning

confidence: 99%

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Occupational and leisure-time physical activity and coronary heart disease

Holtermann

2015

Occup Environ Med

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supporting

confidence: 84%

mentioning

confidence: 99%

Occupational and leisure-time physical activity and coronary heart disease

Holtermann

2015

Occup Environ Med

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“…A recent cluster randomized controlled trial also reported opposing health impacts of a 4-month aerobic exercise intervention among Danish cleaners. While the intervention increased cardiorespiratory fitness, lowered resting and sleeping heart rate, reduced inflammation markers, and reduced relative workload (measured as percent heart rate reserve, which is equivalent to RAS), it also significantly increased systolic blood pressure (58). These mixed findings cast doubt on whether the international PA recommendation for the public at large (45) is similarly applicable to working populations with high physical job demands or with preexisting CVD.…”

Section: Effects Of Ltpa Accounting For Opamentioning

confidence: 46%

Effects of leisure-time and occupational physical activities on 20-year incidence of acute myocardial infarction: mediation and interaction

Wang¹,

Arah²,

Kauhanen³

et al. 2016

Scand J Work Environ Health

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High occupational physical activity (OPA) increased acute myocardial infarction (AMI) risk among workers with and without preexisting ischemic heart disease (IHD), however consistently only at low levels of leisure-time physical activity (LTPA). Workers with high OPA and low LTPA and workers with high LTPA and moderate OPA had the highest risks for AMI. LTPA did not mediate the impact of OPA on AMI risk. Affiliation:

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“…Both internet-based motivation programs (Andersen et al 2013) and structured exercise sessions (Korshoj et al 2015) have been shown to successfully increase the level of PA in workers. Such increase in PA may have positive effects on risk biomarkers for CVD, but there is scarce knowledge of how PA initiated at the workplace will affect such variables in generally healthy employees.…”

Section: Introductionmentioning

confidence: 99%

Physical activity initiated by employer induces improvements in a novel set of biomarkers of inflammation: an 8-week follow-up study

et al. 2017

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PurposeWe investigated the level of pro- and anti-inflammatory biomarkers before and after 8 weeks of unsupervised physical activity (PA) initiated by employer.MethodsDuring autumn 2014, background data, blood samples and self-reported exercise level were collected from 76 men and 41 women in a Norwegian road maintenance company. Monocyte chemoattractant protein-1 (MCP-1), tumor necrosis factor-alpha (TNF-α), interleukin-6 (IL-6), leptin, adiponectin, p-selectin and CD40 ligand (CD40L) were analyzed. was measured in a subgroup of 50 subjects.ResultsWith reference point of exercise ≤1 time/week, we found that participants who exercised 2–3 times/week had higher values (5.6 mL kg−1 min−1; 95% CI [1.3, 9.9]). MCP-1 was lower in those who exercised ≥ 4 times/week (−81.98 pg/ml [−142.9, −21.0]). IL-6 and p-selectin levels were lower in females who exercised ≥4 times/week (−1.04 pg/ml [−2.04, −0.03] and −13.75 ng/ml [−24.03, −3.48]). Leptin was lower in participants who exercised 2–3 times/week (−0.39 µg/ml ln [−0.68, −0.09]) and ≥4 times/week (−0.69 µg/ml ln [−1.10, −0.28]). During follow-up, increased (2.9 mL kg−1 min−1 [1.5, 4.3]), while p-selectin and CD40L decreased (−2.33 ng/ml [−3.78, −0.87] and 718.14 ng/ml [−1368, −68]). MCP-1 levels decreased among men (−32.70 pg/ml [−51.21, −14.19]). A joint analysis of all biomarkers (inversed adiponectin) showed that those who exercised ≥4 times/week at baseline had lower total levels of biomarkers and that total biomarker levels decreased during follow-up.ConclusionsExercising several times a week was associated with less inflammation compared to exercising once a week or less. During the 8-week follow-up, total levels of biomarkers of inflammation improved.Electronic supplementary materialThe online version of this article (doi:10.1007/s00421-016-3533-5) contains supplementary material, which is available to authorized users.

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

Cited by 48 publications

References 49 publications

Occupational and leisure-time physical activity and coronary heart disease

Occupational and leisure-time physical activity and coronary heart disease

Effects of leisure-time and occupational physical activities on 20-year incidence of acute myocardial infarction: mediation and interaction

Physical activity initiated by employer induces improvements in a novel set of biomarkers of inflammation: an 8-week follow-up study

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