Stronger Muscles May Boost Survival Chances for Cancer Patients

New research published in the British Journal of Sports Medicine highlights a vital link between muscular strength, physical fitness, and improved survival rates in cancer patients. The study suggests that tailored exercise programs focusing on building muscle strength and cardiorespiratory fitness could significantly lower the risk of death in people living with cancer.

Why This Research Matters

In 2022, 20 million people worldwide were diagnosed with cancer, and nearly 10 million deaths were reported due to the disease. These numbers are expected to rise in the coming years. While advancements in cancer prevention, diagnosis, and treatment have improved survival rates, the side effects of treatments often affect the heart and muscles, impacting patients’ overall health and longevity.

This study explores how physical strength and fitness could help reduce mortality risks and provide cancer patients with a better chance of survival.

Key Findings of the Study

  • Better Muscle Strength Improves Survival:
    Using handgrip strength as a measure, the study found that low muscle strength increased the risk of death. Conversely, every unit increase in muscle strength reduced the risk of death by 11%.
  • Cardiorespiratory Fitness Matters:
    Fitness levels were assessed using cardiopulmonary exercise testing (CPET) or the 6-minute walk test (MWT). Patients with higher fitness levels had up to 46% lower risk of death compared to those with poor fitness.
  • Advanced Cancer Survival:
    Patients with advanced cancer (stages 3 and 4) who had higher muscle strength and fitness levels experienced an 8%-46% lower risk of death from any cause.
  • Cancer Type and Fitness:
    Among patients with lung or digestive cancers, higher fitness levels reduced the risk of death by 19%–41%.

Why Muscle Strength and Fitness Are Important for Cancer Patients

  • Reduces Mortality Risk: Stronger muscles and better fitness levels lower the chances of death from both cancer and other causes.
  • Improves Quality of Life: Exercise helps manage the side effects of cancer treatments, including fatigue and muscle loss.
  • Supports Advanced Cancer Cases: Even in later stages, patients benefit significantly from improved strength and fitness.

How Doctors Can Help

  1. Promote Strengthening Exercises: Encourage muscle-strengthening activities, such as resistance training, for patients where it is safe.
  2. Recommend Tailored Fitness Programs: Work with physiotherapists or exercise specialists to develop personalized exercise plans.
  3. Assess Muscle Strength Regularly: Use tools like handgrip strength tests to monitor and address risks early.
  4. Educate Patients: Inform patients about the role of exercise in improving survival and quality of life during cancer treatment.

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