The findings suggest that even modest physical activity can lead to lasting improvements in health outcomes for cancer survivors.
A major new study has found that regular exercise after treatment can reduce the risk of death in cancer patients by more than 37%, offering a potential shift in post-treatment care.
The CO21 Challenge trial involved 889 colon cancer survivors from six countries, including the UK, all of whom had undergone surgery and chemotherapy. Though initially inactive, participants were medically cleared to exercise.
Researchers divided participants into two groups: one received a highly personalized three-year exercise program, including in-person coaching and ongoing support from physical activity consultants. The other group was provided with general educational materials on exercise and nutrition.
The tailored intervention proved significantly more effective. After five years, those in the personalized program group had a 28% lower risk of dying, relapsing, or developing a new cancer. After eight years, the overall risk of death had dropped by 37%, even though many participants gradually exercised less over time.
Moderate-intensity activities like brisk walking for 40 minutes, jogging, cycling, swimming, or circuit training all met the recommended threshold.
The findings suggest that even modest physical activity can lead to lasting improvements in health outcomes for cancer survivors.
“This could transform medical practice,” the research team stated. Beyond reducing recurrence and mortality, exercise was also found to enhance mood, strength, and energy levels.