Overview
- Published in The Lancet Healthy Longevity on February 25, the study was led by Sylvester Comprehensive Cancer Center at the University of Miami.
- Researchers synthesized 21 randomized controlled trials involving 3,024 women receiving chemotherapy for breast cancer.
- Structured programs featuring aerobic exercise, resistance training, or combined routines yielded significant gains in physical, emotional, and mental quality-of-life measures by treatment completion.
- No single exercise type proved superior, supporting flexible, personalized prescriptions with appropriate supervision during active treatment.
- The analysis showed a moderate overall effect (Hedges g≈0.43) and a roughly two‑thirds probability of better outcomes with exercise, while noting heterogeneity, regional differences, and limited adherence reporting as constraints.