Systematic Review of the Impact of Nutrition and Physical Activity on Cardiovascular Disease Risk Among Firefighters

Abstract

Objectives: The objective of this systematic review was to summarize the literature on non-occupational cardiovascular disease (CVD) risk factors experienced by firefighters, specifically those related to nutrition, physical fitness, and physical activity. Methods: Two electronic databases (PubMed and Scopus) were used for this review. Search terms included those related to CVD, nutrition, physical fitness, and physical activity among firefighters. The PRISMA checklist was followed to ensure a rigorous review. The Academy of Nutrition and Dietetics Quality Criteria Checklist for Primary Research was also used for critical appraisal of the included studies. The review process was performed by one researcher and is in the process for a second independent researcher to reduce bias. Results: Twenty-six (n = 26) articles were included in the final qualitative synthesis (4 nutrition, 4 nutrition and physical fitness/activity, and 18 physical fitness/activity). The outcomes were that firefighters do not engage in regular physical activity, tend to have substandard fitness levels and poor dietary habits, and work in a poor food environment. These factors have been shown to relate with higher prevalence of CVD and its indicators. These studies also suggest that firefighters want information, programs, and resources related to improving nutrition and physical activity to reduce CVD. Conclusions: Among firefighters, numerous studies exist regarding increased CVD risk related to inadequate physical fitness and activity levels, however, few studies address the role of a healthy diet in the development of CVD risk. This review is beneficial for public health practitioners, researchers, and fire service leaders, as it provides insight into the need to further investigate how diet affects CVD risk among the firefighting population.