Abstract
Background
Complications of breast cancer treatment can cause physical and psychosocial distress in patients. Yoga demonstrates substantial potential as a supportive therapy for patients with breast cancer. Our aim is to conduct a meta-analysis of randomized controlled trials to evaluate the effectiveness of yoga in enhancing the quality of life (QoL) of patients with breast cancer.
Methods
We searched for studies published before March 2020 in the PubMed, Embase, and Cochrane Library databases. Individual effect sizes were standardized, and the pooled effect size was calculated using a random effect model. Measured outcomes included QoL, anxiety and depression, stress, fatigue, pain severity, and sleep quality.
Results
In total, 26 trials involving 2069 patients were reviewed. Significant enhancement in QoL was observed immediately after the yoga intervention. The pooled mean differences in social (weighted mean difference [WMD]: 1.36, 95% confidence interval [CI] 0.12–2.61), emotional (WMD: 1.46, 95% CI 0.26–2.66), and functional well-being (WMD: 2.04, 95% CI 0.21–3.87) were significantly higher in the yoga group than in the control group. Patients practicing yoga exhibited significant improvements in physical well-being, mental well-being, and sleep quality as well as reductions in anxiety, depression, stress, fatigue, and pain severity after the intervention.
Conclusions
Yoga may enhance QoL in patients with breast cancer experiencing post-treatment complications. Therefore, we recommend yoga as a supportive therapy for patients with breast cancer to relieve post-treatment distress.
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Acknowledgments
This manuscript was edited by Wallace Academic Editing.
Funding
This work was supported by a research grant from Yuan’s General Hospital and Taipei Medical University (Grant no.: 109YGH-TMU-07). The sponsoring organization was not involved in the study design, data analysis, or interpretation of results.
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Dr. Ka-Wai Tam has received research grants from Yuan’s General Hospital and Taipei Medical University. Drs. Er-Jung Hsueh, El-Wui Loh, and Joyce Jui-An Lin have no conflicts of interest or financial ties to disclose.
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Ethical approval is not required as our study will not include confidential participant data and intervention.
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Hsueh, EJ., Loh, EW., Lin, J.JA. et al. Effects of yoga on improving quality of life in patients with breast cancer: a meta-analysis of randomized controlled trials. Breast Cancer 28, 264–276 (2021). https://doi.org/10.1007/s12282-020-01209-6
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DOI: https://doi.org/10.1007/s12282-020-01209-6