When most people think about health, they focus on blood pressure, cholesterol, or body weight. But emerging research suggests that something much simpler may tell us a great deal about future health: how strong you are and how fast you walk.
A large study of nearly 483,000 participants from the UK Biobank found that individuals with sarcopenia (loss of muscle strength and function), weaker grip strength, and slower walking pace had significantly higher risks of stroke and poorer survival after stroke. Participants with probable sarcopenia had a 30% higher risk of developing stroke, while those who walked at a slow pace had a 64% higher risk compared with individuals who walked briskly.
Although this study focused on stroke rather than cancer, the findings have important implications for cancer prevention and survivorship.
Cancer treatments—including chemotherapy, hormone therapy, radiation therapy, and surgery—can accelerate muscle loss. In many cancer survivors, sarcopenia develops silently over time, leading to fatigue, reduced physical function, decreased independence, and worse clinical outcomes. Numerous oncology studies have shown that low muscle mass and poor physical performance are associated with higher treatment toxicity, increased complications, lower quality of life, and reduced survival.
One of the most encouraging findings from this study is that walking pace emerged as a potentially causal predictor of health outcomes. Walking pace reflects overall physical function, cardiovascular fitness, and physiologic resilience. In practical terms, the ability to walk briskly may be one of the simplest indicators of healthy aging and long-term health.
For cancer survivors, this reinforces a growing message from Exercise Oncology research: maintaining muscle strength and physical function is not merely about fitness—it is an important component of health and longevity.
Resistance training, regular aerobic exercise, and programs designed to preserve muscle mass can help counteract sarcopenia. These interventions may improve physical performance, reduce treatment-related side effects, enhance quality of life, and potentially improve long-term cancer outcomes.
The message is clear: muscle strength is more than a measure of fitness. It may be a powerful marker of resilience, recovery, and healthy aging.
Key Takeaways for Cancer Survivors
- Muscle strength is a powerful indicator of overall health.
- Sarcopenia is associated with worse long-term health outcomes.
- Walking pace may be one of the simplest measures of physical resilience.
- Cancer treatments can accelerate muscle loss, making exercise especially important.
- Resistance training and regular physical activity can help preserve muscle mass and physical function throughout the cancer journey.
Call to Action
At CancerFitness.org, we believe that preserving muscle strength should be considered a critical component of cancer care—from diagnosis through long-term survivorship. Ask your healthcare team about your physical function, strength, and body composition. If you are not currently participating in a structured Exercise Oncology program, now is the time to start.
Strong muscles support strong survivorship. The best time to build and maintain them is today.
Reference: Sarcopenia, Grip Strength, Walking Pace, and New-Onset Stroke Risk: A UK Biobank Study. Li-Li Tang, MMed; Yu-Hui Huang, PhD; Yu-Jia Jin Feng Gao , MD; Bing Xiong , MD; Kai-Cheng Yang , MD; Changzheng Yuan, ScD; Lu-Sha Tong , MMed; Qing Lin , MD , MD; Zien Zhou , PhD. Stroke. 2026;57:1574–1585. DOI: 10.1161/STROKEAHA.125.052311
