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Snow Shoveling's Deadly Heart Strain
6 Dec
Summary
- Shoveling snow can strain the heart as much as a stress test.
- Holding breath while shoveling increases blood pressure and heart rate.
- Cold air constricts blood vessels, raising blood pressure.
The strenuous activity of shoveling snow presents a serious cardiac risk, even for individuals who are generally active. Heart health expert Barry Franklin notes that the physical demand on the heart during snow removal can be as intense as undergoing a stress test. Participants in studies have shown heart rates exceeding 85% of their maximum capacity after just two minutes of shoveling.
Several factors contribute to this heightened risk. Shoveling involves tensing muscles without joint movement, primarily uses the arms, and can lead to holding one's breath, which elevates blood pressure. Furthermore, standing in one place causes blood to pool in the lower extremities, hindering efficient circulation back to the heart.
The impact of cold weather adds another layer of danger. Exposure to frigid air causes blood vessels to constrict, leading to increased blood pressure. Franklin advises individuals with pre-existing cardiovascular conditions or those at higher risk due to factors like obesity, smoking, diabetes, or high blood pressure to avoid shoveling snow entirely.
