Cited by 74Cancer survivorship and careWomen's cancer prevention and managementComplementary and Alternative Medicine Studies

The Effect of Yoga Interventions on Cancer-Related Fatigue and Quality of Life for Women with Breast Cancer: A Systematic Review and Meta-Analysis of Randomized Controlled Trials

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O’Neill, Meagan, Samaroo, Dominic, Lopez, Christian, Tomlinson, George, Santa Mina, Daniel, Sabiston, Catherine, Culos-Reed, Nicole, Alibhai, Shabbir M. H.·2020·Integrative Cancer Therapies

Abstract

Background: Women with breast cancer (BC) are living longer with debilitating side effects such as cancer-related fatigue (CRF) that affect overall well-being. Yoga promotes health, well-being and may be beneficial in reducing CRF. Although there have been previous systematic reviews and meta-analyses, the effects of yoga on CRF and quality of life (QOL) remain unclear, particularly in comparison with other types of physical activity (PA). Our objective is to carry out a systematic review and meta-analysis of the effects of yoga on CRF and QOL in women with BC. Methods: Electronic databases were searched (MEDLINE, Embase Classic+Embase and EMB Reviews, Cochrane Central CT) from inception to May 2018. Randomized controlled trials were included if they were full text, in English, included a yoga intervention, a comparator (including non-PA usual care or alternate PA intervention), and reported on CRF or QOL. Effects of yoga were pooled using standardized mean difference (SMD) via a random effects model. Results: Of the 2468 records retrieved, 24 trials were included; 18 studies compared yoga to a non-PA comparator and 6 to a PA comparator. Yoga demonstrated statistically significant improvements in CRF over non-PA (SMD −0.30 [−0.51; −0.08]) but not PA (SMD −0.17 [−0.50; 0.17]) comparators. Additionally, yoga demonstrated statistically significant improvements in QOL over non-PA (SMD −0.27 [−0.46; −0.07]) but not PA (SMD 0.04 [−0.22; +0.31]) comparators. Discussion: This meta-analysis found that yoga provides small to medium improvements in CRF and QOL compared to non-PA, but not in comparison to other PA interventions.

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  • Mixed results have been reported for yoga's effect on QL.

    “and QL (in 18 RCTs with a nonphysical activity comparator, SMD = -0.27; in 6 RCTs with a physical activity comparator, SMD = 0.04; O'Neill et al. 2020).”

    From Psychosocial and Integrative Oncology: Interventions Across the Disease Trajectory. (2023) · cites this paper as O'Neill et al. 2020

    The Results (Quality of Life; page unavailable) support the mixed finding: yoga benefited quality of life versus non-active comparators but had a negligible effect versus active comparators. The cited SMDs match the paper’s reported values, but the sentence presents 18 and 6 RCTs as the quality-of-life comparison counts. Those are the counts of all included trials by comparator; the Quality of Life results specify 10 studies for the non-active comparison. (LLM, conf=0.88)

    Experimental — accuracy not yet measured
  • Mixed results have been reported for yoga's effect on fatigue.

    “fatigue (in 18 RCTs with a nonphysical activity comparator, SMD = -0.30; in 6 RCTs with a physical activity comparator, SMD = -0.17;O'Neill et al. 2020)”

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Authors
O’Neill, M., Samaroo, D., Lopez, C., Tomlinson, G., Santa Mina, D., Sabiston, C., Culos-Reed, N., & Alibhai, S. M. H.
Affiliations
  • University Health Network (CA)
  • University of Toronto, Toronto, ON, Canada
  • University of Toronto (CA)
  • University of Calgary (CA)
Corresponding author
O’Neill, Meagan
Venue
Integrative Cancer Therapies
Published
2020-01
Volume
19
Pages
1534735420959882-1534735420959882
ISSN
  • 1534-7354 (ISSN-L)
  • 1552-695X
OpenAlex
W3093370396
Cited by
74
References
7
Citations by year
2026: 11 · 2025: 7 · 2024: 16 · 2023: 22 · 2022: 16 · 2021: 2
FWCI
1.07
Type
journal article
Language
en
Open access
Locations
  • Integrative Cancer Therapies (publishedVersion, cc-by-nc)
  • PubMed Central (publishedVersion, cc-by-nc)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Topics
  • Health Sciences › Medicine › Oncology › Cancer survivorship and care
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Women's cancer prevention and management
  • Health Sciences › Medicine › Complementary and alternative medicine › Complementary and Alternative Medicine Studies
Keywords
yoga, cancer-related fatigue, quality of life, breast cancer, physical activity interventions, complementary therapy, women with cancer
MeSH terms
Breast Neoplasms, Fatigue, Female, Humans, Quality of Life, Yoga, Randomized Controlled Trials as Topic

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