Scientists from the Swedish School of Sports and Health Sciences have shown that men with a high level of physical fitness are less likely to develop colon cancer and die from prostate and lung cancer. The research was published in the journal JAMA Network Open.
Previous studies have proven that regular exercise reduces the risk of developing various types of cancer. However, it was unknown whether high cardiorespiratory endurance, i.e. the ability of the cardiovascular and respiratory systems to deliver oxygen to tissues during prolonged physical activity, had such an effect.
In the new study, researchers analyzed data from 177,709 Swedish men aged 18 to 75 between 1982 and 2019. Cardiorespiratory endurance was assessed using an exercise bike test. The team then followed the participants for an average of 9.6 years and tracked cancer incidence and mortality.
After adjusting for other cancer risk factors (such as lifestyle), the analysis showed that moderate to high levels of cardiorespiratory endurance were associated with a significantly lower risk of colon cancer.
Additionally, low, moderate, and high endurance levels were associated with a lower risk of death from prostate cancer. Among older men, high levels of endurance have been associated with a lower risk of death from lung cancer.
Researchers also found that among men with very low cardiorespiratory endurance, 4% to 8% of all colon cancers, 4% of all lung cancer deaths, and 4% to 19% of prostate cancer deaths could be prevented by these men. increase their stamina.
The study’s authors suggested that higher endurance levels may reduce systemic inflammation associated with cancer development and prevent the deterioration in insulin sensitivity.
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