In Unfit Men, Heavy Work May Increase Fatal Heart Disease Risk: Study

The results suggest that by maintaining good physical fitness, men who engage in heavy labor can avoid increased risk, and possibly even lower their risk of death from heart disease.

High physical work demands are linked to an increased risk of death from ischemic heart disease (IHD)—but only for men who aren’t physically fit, reports a study in the November Journal of Occupational and Environmental Medicine, official publication of the American College of Occupational and Environmental Medicine (ACOEM).

The increase in risk is not explained by the higher rates of heavy work and health risk factors among men at lower socioeconomic levels, concluded the new research, led by Andreas Holtermann, Ph.D., of Bispebjerg University Hospital, Copenhagen.

A previous study of 5,250 Danish men found an increased risk of death from IHD (such as heart attack) in men with high physical work demands and low physical fitness. However, social class was a potential confounding factor: men at lower socioeconomic levels are more likely to have jobs involving heavy work. They also have higher rates of lifestyle risk factors, such as smoking and obesity.

To address this question, the researchers analyzed 2,707 men in the lower socioeconomic levels. Thirty percent of men in this group had high physical work demands, compared to 3.5 percent for those at higher socioeconomic levels. The long-term risk of death from IHD was 14 percent for men in the lower social classes, compared to about nine percent in the higher social classes.

However, the main risk factor was not low socioeconomic status, but rather low physical fitness. Men with low fitness and high physical work demands were nearly three times more likely to die from IHD, compared to those with low work demands.

Among men who did heavy work, risk was about 40 percent lower for those with high physical fitness.

Thus socioeconomic factors don't seem to explain the link between heavy labor and IHD risk. “These observations indicate that physical fitness is a protector of or a risk modifier among men exposed to high physical loads on their cardiovascular system,” Holterman and co-authors wrote. The results suggest that by maintaining good physical fitness, men who engage in heavy labor can avoid increased risk, and possibly even lower their risk of death from heart disease.

Download Center

HTML - No Current Item Deck
  • Free Safety Management Software Demo

    IndustrySafe Safety Management Software helps organizations to improve safety by providing a comprehensive toolset of software modules to help businesses identify trouble spots; reduce claims, lost days, OSHA fines; and more.

  • Get the Ultimate Guide to OSHA Recordkeeping

    When it comes to OSHA recordkeeping there are always questions regarding the requirements and in and outs. IndustrySafe is here to help. We put together this page with critical information to help answer your key questions about OSHA recordkeeping.

  • Safety Training 101

    When it comes to safety training, no matter the industry, there are always questions regarding requirements and certifications. We put together a guide that’s easy to digest so you can ensure you're complying with OSHA's training standards.

  • Conduct EHS Inspections and Audits

    Record and manage your organization’s inspection data with IndustrySafe’s Inspections module. IndustrySafe’s pre-built forms and checklists may be used as is, or can be customized to better suit the needs of your organization.

  • Track Key Safety Performance Indicators

    IndustrySafe’s Dashboard Module allows organizations to easily track safety KPIs and metrics. Gain increased visibility into your business’ operations and safety data.

  • Industry Safe
comments powered by Disqus