Could exercise be ‘better than a drug’ at preventing colon cancer recurrence?

In a groundbreaking study spanning the contours of North America, cancer survivors are discovering an unexpected ally in their fight against colon cancer: physical exercise. Among the participants is Joan Thompson, a 61-year-old mother of two, who experienced a stage 3 diagnosis two years ago. “After the surgery, I felt lost,” she recalls. “But committing to a structured exercise program turned my recovery into a journey of empowerment.”

The Conundrum of Colorectal Cancer

Colorectal cancer is the third most common cancer worldwide, and the second leading cause of cancer deaths, with nearly 1.9 million cases reported in 2020 alone. Traditionally, treatment options have centered on a triad of surgery, radiotherapy, and chemotherapy. Patients, like Joan, are often encouraged to follow a healthy lifestyle alongside drug therapies to mitigate the risk of recurrence. But what if the remedy lay not in a prescription but in a pair of running shoes?

New Insights from Canadian Research

A study led by researchers at the University of Alberta has unveiled compelling evidence that a structured exercise program can significantly reduce the risk of colon cancer recurrence. “What we found was astounding,” says Dr. Kerry S. Courneya, the study’s lead author and Canada Research Chair in Physical Activity and Cancer. “Patients who adhered to a supervised workout regime had a 28% reduced risk of cancer returning compared to those who only received dietary advice.”

• Effectiveness: 28% lower risk of recurrence in the exercise group.
• Survival rates: 80.3% disease-free after five years for exercisers vs. 73.9% for the control group.
• Health Benefits: Participants reported less fatigue, improved cardiovascular health, and increased strength.

The Study’s Design and Findings

Conducted between 2009 and 2024, the study enrolled 889 patients aged 19 to 84 who had undergone surgery and chemotherapy for high-risk colon cancer. They were randomly assigned to two groups: one receiving rigorous exercise under the guidance of certified consultants and the other given general health education. The results were striking: at a median follow-up of 7.9 years, 93 patients in the exercise group experienced serious health setbacks compared to 131 in the health-education group.

“The strongest takeaway is the improvement in overall survival, which is what everyone aims for,” Courneya states. Despite no significant weight loss among participants, exercise showed tremendous promise in prolonging disease-free intervals. However, the study underscores the need for structured programs tailored to patients’ fitness levels.

The Experts Weigh In

David Sebag-Montefiore, a leading clinical oncologist at the University of Leeds, remarked, “This evidence redefines post-treatment protocols and emphasizes the importance of an active lifestyle. Exercise stands out as a viable supplement to traditional therapies, greatly minimizing side effects.”

However, Dr. Julie Gralow, Chief Medical Officer of the American Society of Clinical Oncology, cautions against viewing exercise as a complete substitute for existing treatments. “I believe it enhances the quality of life significantly. Still, we cannot overlook the personalized drug therapies that have shown that they can be beneficial for specific countermeasures against cancer mutations.”

The Road Ahead

Despite its proven benefits, many survivors face barriers to incorporating exercise into their lives. Joe Henson, an exercise specialist involved in the trials, calls for healthcare providers to become advocates for physical activity. “It’s vital that exercise becomes as routine as medication in cancer care plans,” he emphasizes. “Right now, the disconnect between oncological treatment and lifestyle modifications stymies patient outcomes.”

As researchers like Vicky Coyle, UK lead for the trial, advocate for more inclusive treatment protocols, the healthcare community must address practical challenges: “Clinics often struggle with resources and personnel, which makes it difficult to support tailored exercise regimens,” she notes. “Finding alternative methods to encourage physical activity could truly revolutionize recovery paths for cancer patients.”

Reflecting on her experiences, Joan Thompson is grateful for the transformation she underwent. “I never thought I’d be in a position to teach my kids about healthy living after cancer,” she shares. “Training with others, challenging myself—it’s not just about surviving, but thriving. Exercise breathed new life into my fight.” As more studies underscore the crucial role exercise plays in health maintenance, the conversation around cancer recovery is changing—perhaps for the better.

Source: www.medicalnewstoday.com