Photo Source: pexels.com
A recent study published in Cancer, the journal of the American Cancer Society, reveals a potentially life-saving benefit for colon cancer patients—regular physical activity.
The findings suggest that exercise may significantly enhance survival rates, with some patients potentially achieving a life expectancy comparable to those without cancer.
New Insights on Exercise and Survival
Dr. Justin Brown, an associate professor at Louisiana State University’s Pennington Biomedical Research Center, led a study that followed nearly 3,000 colon cancer patients over six years. The patients’ exercise habits during and after chemotherapy were recorded, and their survival was compared to life expectancy predictions based on factors like age and gender,
“This study suggests that after a diagnosis of colon cancer, engaging in physical activity may help patients live longer, and for some patients, help them live as long, or even longer, as those in the general population without cancer,” said Dr. Brown.
This study reinforces previous research that shows exercise could significantly improve survival outcomes, with some patients potentially matching the life expectancy of cancer-free individuals.
Exercise’s Role in Inhibiting Cancer Progression
Dr. Keith Diaz, a behavioural medicine professor at Columbia University Medical Center, who was not part of the study, explained how exercise can improve heart, mental, and gut health—all of which play a critical role in long-term survival after a cancer diagnosis.
Researchers believe that exercise may slow cancer’s progression by reducing factors like inflammation and insulin, which are known to fuel cancer cell growth.
“Exercise can reduce the inflammation and insulin levels that allow cancer cells to grow and spread,” said Dr. Diaz. “Physical activity also improves the immune system, making it easier for the body to detect and eliminate the cancer cells.”
The Impact of Physical Activity
The study revealed that just five to six hours of brisk walking per week was beneficial for colon cancer patients, though even smaller amounts of physical activity showed advantages. “In this study, we showed that a small amount of physical activity each day may contribute to improved survival,” said Dr. Brown.
“Little changes to behaviours, when integrated over the lifespan, make a big difference for health.” This idea is further supported by past research, including a July 2023 study which found that even one to two minutes of vigorous activity—such as power walking or playing with children—could reduce cancer risk.
Additionally, a March 2023 study suggested that 11 minutes of moderate to vigorous exercise each day could help lower the risk of diseases like cancer.
Optimistic Outlook for Colon Cancer Patients
Colorectal cancer is increasing among younger adults and is expected to be the leading cause of cancer-related deaths for individuals aged 20 to 49 by 2030. Nevertheless, the study’s results provide a promising outlook for patients.
“Patients are often eager to understand how the choices that they make outside of the walls of the cancer centre may impact how they feel, function and survive,” said Dr. Brown. While the study doesn’t prove exercise directly leads to better survival, its observational nature suggests that physical activity can be a valuable tool for colon cancer patients.
“That’s incredibly encouraging news for colon cancer survivors—it underscores that a cancer diagnosis isn’t the end, and there can be many healthy years ahead,” Dr. Diaz noted.
The Importance of Lifestyle Choices in Cancer Survival
While more research is needed to determine the optimal exercise regimen for cancer patients, experts agree that some physical activity is always better than none. For those battling or recovering from colon cancer, this study offers a clear message: Exercise is a proactive step toward a longer, healthier life.