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Published on: January 12, 2017
Effects of Exercise Interventions on Breast Cancer Patients During Adjuvant Therapy: A Systematic Review and
Zhiyuan Sun1, Tengteng Han1, Lianshi Feng1
1Shandong Sports Science Research Institute, Shandong Sport University, Jian, China.
Purpose:
Exercise can enhance the therapeutic effects of adjuvant medications, improve both physiological and psychological functions, and increase physical fitness among breast cancer patients receiving adjuvant therapy. This systematic review and meta-analysis examined the latest research on the effects of exercise interventions in this population. Furthermore, subgroup analyses were performed based on exercise type, intensity, frequency, duration and Types of adjuvant therapy.
Materials And Methods:
The PubMed, Embase, CINAHL, and CENTRAL databases were systematically searched from inception to April 2024 to identify randomized controlled trials (RCTs) examining the use of exercise interventions among breast cancer patients receiving adjuvant therapy. The data extracted from the included studies were analyzed via RevMan 5.4.
Results:
A total of 34 studies involving 2,696 participants were included, with 1,369 in the intervention group and 1,327 in the control group, and a mean age ranging from 40 to 60 years. Compared to the control group, exercise interventions improved fatigue, muscular strength, cardiorespiratory fitness, inflammation, and quality of life in breast cancer patients (fatigue: SMD=-0.29, 95% CI (-0.50, 0.09), p=0.005; upper limb strength: SMD=0.50, 95% CI (0.33, 0.68), p<0.00001, lower limb strength: SMD=0.37, 95% CI (0.22, 0.52), p<0.0001; cardiorespiratory fitness: SMD =0.51, 95% CI (0.26,0.75), p<0. 0001; inflammation: SMD =-0.36, 95% CI (-0.66, -0.06), p=0.02; quality of life: SMD=0.21, 95% CI (0.11, 0.31), p< 0.0001). Moderate effect sizes were observed for the alleviation of anxiety and depressive symptoms, although these results did not reach statistical significance (depression: SMD=-0.13, 95% CI (-0.28, 0.02), p=0.08; anxiety: SMD=-0.81, 95% CI (-1.65, 0.03), p=0.06). This meta-analysis was registered in Prospero, the international register of systematic reviews, with registration number: CRD42024553589.
Conclusion:
Exercise during adjuvant therapy can reduce the side effects of adjuvant medications, improve both physiological and psychological functions, and enhance physical fitness among patients with breast cancer.
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