New evidence for the relationship between exercise and cancer: Sports protect men from cancer

In recent years, many scientific studies have been published that exercise protects against cancer. Research on middle-aged people in particular shows that basic exercises such as walking provide significant benefits. In this regard, last year Journal of Cancer SurvivorshipA study published in . In a very recent study published in the JAMA Oncology journal a few days ago, it was shown that men in their forties who play sports are protected from certain cancers, such as lung cancer and colorectal cancer, and their risk of developing cancer is significantly reduced. One of the most interesting aspects of the study is that it shows that those who do sports have a higher chance of surviving even when they have cancer.

In the study conducted by researchers at the University of Vermont, it is emphasized that even a small amount of exercise in men helps to reduce the risk of cancer. The Cancer Research Institute of England has determined that researching the links between levels of exercise and cancer risk in men is a new approach in this field.

Regular exercise and sports are vital to prevent cancer.

Various studies have previously shown that being physically active and eating a healthy and balanced diet are important factors in reducing the risk of developing cancer and other diseases. But the author of the new study, Dr Susan Lakoski, says it would be more helpful to tell people how much they should exercise to reduce their cancer risk to acceptable levels. This can take the form of a personalized plan that begins with the cardio-respiratory fitness measurement of the person in question.

Treadmill test

The study of 14,000 men between the ages of 46 and 50 in Texas tested cardio-respiratory levels on a treadmill. Thereafter, their physical levels were regularly tested every six and a half years, on average, between 1971 and 2009. Between 1999 and 2009, 1,310 of the men were diagnosed with prostate cancer, 200 with lung cancer, and 181 with colorectal cancer.

The study found that middle-aged men with high fitness reduced their risk of lung cancer by 55% and colorectal cancer by 44%, compared with men with low fitness. However, the study showed no effect of fitness in reducing prostate cancer risk in middle-aged men. The exact reasons for this are unknown, the authors say.

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The full text of the study can be accessed from the link below:

Source: Midlife Cardiorespiratory Fitness, Incident Cancer, and Survival After Cancer in MenThe Cooper Center Longitudinal Study. SG. Lakoski, BL. Willis, E. Barlow, D. Leonard, JD. Berry, LW. Jones, JAMA Oncol. 2015. doi:10.1001/jamaoncol.2015.0226

importance: Cardiorespiratory fitness (CRF) as assessed by formalized incremental exercise testing is an independent predictor of numerous chronic diseases, but its association with incident cancer or survival following a diagnosis of cancer has received little attention.

Objective To the association between midlife CRF assess and incident cancer and survival following a cancer diagnosis.

Design, Setting, and Participants This was a prospective, observational cohort study conducted at a preventive medicine clinic. The study included 13 949 community-dwelling men who had a baseline fitness examination. All men completed a comprehensive medical examination, a cardiovascular risk factor assessment, and incremental treadmill exercise test to evaluate CRF. We used age- and sex-specific distribution of treadmill duration from the overall Cooper Center Longitudinal Study population to define fitness groups as those with low (lowest 20%), moderate (middle 40%), and high (upper 40%) CRF groups . The adjusted multivariable model included age, examination year, body mass index, smoking, total cholesterol level, systolic blood pressure, diabetes mellitus, and fasting glucose level. Cardiorespiratory fitness levels were assessed between 1971 and 2009, and lung, prostate, and colorectal cancer using Medicare Parts A and B claims data from 1999 to 2009; the analysis was performed in 2014.

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Main Outcomes and Measures The main outcomes were (1) incident prostate, lung, and colorectal cancer and (2) all-cause mortality and cause-specific mortality among men who developed cancer at Medicare age (≥65 years).

Results Compared with men with low CRF, the adjusted hazard ratios (HRs) for incident lung, colorectal, and prostate cancers among men with high CRF were 0.45 (95% CI, 0.29-0.68), 0.56 (95% CI, 0.36-0.87) , and 1.22 (95% CI, 1.02-1.46), respectively. Among those diagnosed as having cancer at Medicare age, high CRF in midlife was associated with an adjusted 32% (HR, 0.68; 95% CI, 0.47-0.98) risk reduction in all cancer-related deaths and a 68% reduction in cardiovascular disease mortality following a cancer diagnosis (HR, 0.32; 95% CI, 0.16-0.64) compared with men with low CRF in midlife.

Conclusions and Relevance There is an inverse association between midlife CRF and incident lung and colorectal cancer but not prostate cancer. High midlife CRF is associated with lower risk of cause-specific mortality in those diagnosed as having cancer at Medicare age.




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