You might think it’s unconventional, but integrating exercise into active cancer treatment is not just beneficial—it’s essential. Far from being merely a supplementary activity, exercise stands as a powerful adjunct therapy, second only to traditional treatments like surgery, chemotherapy, and radiation. When combined with proper nutrition, exercise plays a pivotal role in enhancing treatment outcomes and improving quality of life for individuals undergoing cancer therapy.
What Does the Research Say About Exercise and Cancer?
The field of exercise oncology has witnessed significant growth, revealing that physical activity positively influences cancer progression, treatment efficacy, and survivorship. Key findings include:
- Inhibition of Tumor Growth and Metastasis: Engaging in regular physical activity can lead to a surge in epinephrine levels, which mobilizes natural killer (NK) cells—immune cells adept at targeting and destroying cancer cells.
- Enhanced Immune Surveillance: Exercise increases the circulation of immune cells, directing NK cells and T-cells to tumor sites and stimulating the production of new immune cells, thereby strengthening the body’s natural defenses.
- Improved Treatment Efficacy: Physical activity prior to chemotherapy or radiation has been shown to enhance drug uptake at tumor sites, potentially boosting treatment effectiveness.
- Management of Treatment-Related Side Effects: Regular exercise helps mitigate various side effects associated with cancer treatments, such as fatigue, muscle loss, cognitive impairments (“chemo brain”), and peripheral neuropathy. It also reduces the risk of osteopenia and osteoporosis induced by hormone therapy or chemotherapy.
- Enhanced Treatment Tolerance and Compliance: Patients who maintain a routine of physical activity experience fewer toxicities, are less likely to require dose reductions, and are more likely to complete their prescribed treatment plans.
Implementing Exercise in Cancer Care
Translating research into practice involves developing safe, personalized exercise programs administered by qualified professionals, such as Accredited Exercise Physiologists (AEPs). These programs are not about generic recommendations but involve:
- Tailored Exercise Prescription: Designing adaptable exercise regimens that align with the specific phase of treatment—be it surgery, chemotherapy, radiation, or hormone therapy.
- Real-Time Management of Fatigue and Side Effects: Adjusting exercise sessions based on the individual’s current health status and treatment side effects.
- Monitoring and Safety Adjustments: Vigilant observation for any adverse signs, modifying the intensity, volume, and type of activity to ensure safety.
- Support for Long-Term Survivorship: Utilizing evidence-based movement strategies to aid in functional recovery and promote enduring health post-treatment.
Central to this approach is a patient-centered philosophy, recognizing that each cancer journey is unique and requires individualized care.
The Necessity for Specialized Training in Oncology Exercise
While exercise physiologists possess a solid foundation in human movement and clinical conditions, the complexity of cancer care necessitates specialized training. Reasons include:
- Diverse Cancer Profiles: Cancers, such as breast cancer, have multiple subtypes with varying treatment paths and side effect profiles, requiring nuanced understanding and adaptability.
- Potential Risks: Without specialized knowledge, there is a risk of inappropriate exercise prescription, which could overlook complications like lymphedema, cardiac dysfunction, or immune suppression.
- Growing Demand: Specialization in oncology exercise equips professionals to serve an expanding population with complex needs, positioning them as leaders in allied health.
- Meaningful Impact: Assisting individuals in regaining strength, reducing side effects, and feeling empowered during treatment is profoundly rewarding and impactful work.
Exercise is not an optional component during cancer treatment—it is a critical element supported by robust research and clinical outcomes. For exercise professionals aspiring to contribute in this domain, investing in specialized knowledge is imperative. Understanding the mechanisms, treatments, and personalized prescription strategies is essential to effectively support individuals navigating cancer treatment.
