New Analysis Highlights Physical Activity's Role in Cancer Survival

A comprehensive analysis conducted by the American Cancer Society (ACS) reveals a significant correlation between physical activity and enhanced survival rates among cancer patients. The study indicates that engaging in moderate-to-vigorous physical activity (MVPA) after a cancer diagnosis can lead to improved outcomes for individuals diagnosed with various types of cancer, including bladder, breast, colon, endometrial, kidney, lung, oral, prostate, rectal, and respiratory cancers.

This landmark research is the first of its kind to longitudinally evaluate the impact of post-diagnosis physical activity on overall mortality rates specifically among survivors of bladder and oral cavity cancers. Furthermore, it represents the largest study to date analyzing the associations between physical activity and survival among survivors of endometrial, kidney, and lung cancers. The findings are detailed in the latest issue of the JNCI: Journal of the National Cancer Institute.

According to Dr. Erika Rees-Punia, a senior principal scientist at the ACS, the study provides compelling evidence supporting the notion that post-diagnosis physical activity can have a significant positive impact on cancer survival rates. The research pooled data from six U.S.-based studies, encompassing a total of 90,844 cancer survivors with an average age of 67. Among these participants, 45,477 passed away over an average follow-up period of 10.9 years.

The researchers utilized proportional hazards models to calculate specific hazard ratios and 95% confidence intervals for MVPA--assessed at least one year following a cancer diagnosis--and its association with all-cause mortality. The models accounted for various factors, including age, sex, race/ethnicity, smoking habits, alcohol consumption, cancer treatments, and the stage of cancer at diagnosis.

The results demonstrated that individuals who engaged in the recommended levels of MVPA after their diagnosis exhibited better overall survival rates compared to those who did not participate in any physical activity. The recommended MVPA levels consist of 7.5 to under 15 Metabolic Equivalent of Task (MET) hours per week, which translates to approximately 2.5 to 5 hours of brisk walking weekly.

Dr. Rees-Punia emphasized that cancer treatment can be physically and mentally taxing, making the prospect of exercising seem daunting. However, she encourages patients to find enjoyable forms of exercise or to consider working out with a friend, as any level of physical activity is better than none.

This study's findings contribute to a growing body of research underscoring the importance of physical activity in improving health outcomes for cancer survivors. As healthcare providers continue to develop supportive care strategies for cancer patients, integrating physical activity into post-diagnosis care plans may prove to be a vital component in enhancing survival rates and quality of life.