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Cited by 176Sleep and related disordersMindfulness and Compassion InterventionsObstructive Sleep Apnea Research

The DOI matches its Crossref record; 79 of the 80 references it cites were found in a registry or an index.

The effect of yoga on sleep quality and insomnia in women with sleep problems: a systematic review and meta-analysis

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Wang, Wei-Li, Chen, Kuang-Huei, Pan, Ying-Chieh, Yang, Szu-Nian, Chan, Yuan-Yu·2020·BMC Psychiatry
DOI 10.1186/s12888-020-02566-4PMC PMC7193366

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Abstract

Background: To examine the effectiveness and safety of yoga of women with sleep problems by performing a systematic review and meta-analysis. Methods: Medline/PubMed, ClinicalKey, ScienceDirect, Embase, PsycINFO, and the Cochrane Library were searched throughout the month of June, 2019. Randomized controlled trials comparing yoga groups with control groups in women with sleep problems were included. Two reviewers independently evaluated risk of bias by using the risk of bias tool suggested by the Cochrane Collaboration for programming and conducting systematic reviews and meta-analyses. The main outcome measure was sleep quality or the severity of insomnia, which was measured using subjective instruments, such as the Pittsburgh Sleep Quality Index (PSQI), Insomnia Severity Index (ISI), or objective instruments such as polysomnography, actigraphy, and safety of the intervention. For each outcome, a standardized mean difference (SMD) and confidence intervals (CIs) of 95% were determined. Results: Nineteen studies in this systematic review included 1832 participants. The meta-analysis of the combined data conducted according to Comprehensive Meta-Analysis showed a significant improvement in sleep (SMD = − 0.327, 95% CI = − 0.506 to − 0.148, P < 0.001). Meta-analyses revealed positive effects of yoga using PSQI scores in 16 randomized control trials (RCTs), compared with the control group in improving sleep quality among women using PSQI (SMD = − 0.54; 95% CI = − 0.89 to − 0.19; P = 0.003). However, three RCTs revealed no effects of yoga compared to the control group in reducing insomnia among women using ISI (SMD = − 0.13; 95% CI = − 0.74 to 0.48; P = 0.69). Seven RCTs revealed no evidence for effects of yoga compared with the control group in improving sleep quality for women with breast cancer using PSQI (SMD = − 0.15; 95% CI = − 0.31 to 0.01; P = 0.5). Four RCTs revealed no evidence for the effects of yoga compared with the control group in improving the sleep quality for peri/postmenopausal women using PSQI (SMD = − 0.31; 95% CI = − 0.95 to 0.33; P = 0.34). Yoga was not associated with any serious adverse events. Discussion: This systematic review and meta-analysis demonstrated that yoga intervention in women can be beneficial when compared to non-active control conditions in term of managing sleep problems. The moderator analyses suggest that participants in the non-breast cancer subgroup and participants in the non-peri/postmenopausal subgroup were associated with greater benefits, with a direct correlation of total class time with quality of sleep among other related benefits.

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Crossref · 10.1186/s12888-020-02566-4

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Figures

Fig. 1 Flowchart of the results of the literature search
Fig. 1 Flowchart of the results of the literature searchCC BY · PubMed Central
Fig. 2 Risk of bias in individual studies. +, low risk of bias;?, unclear risk of bias; −, high risk of bias (a). Risk of bias for each criterion presented as percentages across all included studies (b)
Fig. 2 Risk of bias in individual studies. +, low risk of bias;?, unclear risk of bias; −, high risk of bias (a). Risk of bias for each criterion presented as percentages across all included studies (b)CC BY · PubMed Central
Fig. 3 Funnel plot of estimate of publication bias in meta-analysis of the effects of yoga on women’s sleep quality compared to control groups (PSQI). SE: standard error; SMD: standardized mean difference
Fig. 3 Funnel plot of estimate of publication bias in meta-analysis of the effects of yoga on women’s sleep quality compared to control groups (PSQI). SE: standard error; SMD: standardized mean differenceCC BY · PubMed Central
Fig. 4 Forest plots for the effects of yoga on sleep quality in women versus control groups. a the global score of the Pittsburgh Sleep Quality Index (PSQI) b the global score of the Insomnia Severity Index (ISI). CI, confidence interval; IV, inverse variance; SD, standard deviation
Fig. 4 Forest plots for the effects of yoga on sleep quality in women versus control groups. a the global score of the Pittsburgh Sleep Quality Index (PSQI) b the global score of the Insomnia Severity Index (ISI). CI, confidence interval; IV, inverse variance; SD, standard deviationCC BY · PubMed Central
Fig. 5 c Forest plots of the effects of yoga on the sleep quality of women with breast cancer (including women under treatment and women who had completed treatment) versus a control group using the global score of the Pittsburgh Sleep Quality Index (PSQI). CI, confidence interval; IV, inverse variance; SD, standard deviation
Fig. 5 c Forest plots of the effects of yoga on the sleep quality of women with breast cancer (including women under treatment and women who had completed treatment) versus a control group using the global score of the Pittsburgh Sleep Quality Index (PSQI). CI, confidence interval; IV, inverse variance; SD, standard deviationCC BY · PubMed Central
Fig. 6 Forest plots displaying the effects of yoga versus control groups on sleep quality in peri/postmenopausal women in (d) the global score of the Pittsburgh Sleep Quality Index (PSQI) (e) the global score of Insomnia Severity Index (ISI). CI, confidence interval; IV, inverse variance; SD, standard deviation
Fig. 6 Forest plots displaying the effects of yoga versus control groups on sleep quality in peri/postmenopausal women in (d) the global score of the Pittsburgh Sleep Quality Index (PSQI) (e) the global score of Insomnia Severity Index (ISI). CI, confidence interval; IV, inverse variance; SD, standard deviationCC BY · PubMed Central

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Research works printed but not linked: 2

  1. Cohen J. Statistical power analysis for the behavioral science. 2nd ed. Hillsdale: L. Erlbaum Associates; 1988.
  2. Yen CY. Effect of body balance sport training on depressive tendencies and sleep quality of female college students. J Natl Taiwan Sports Univ. 2008;19:37–50.

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Metadata

Authors
Wang, W.-L., Chen, K.-H., Pan, Y.-C., Yang, S.-N., & Chan, Y.-Y.
Affiliations
  • Taoyuan Armed Forces General Hospital (TW)
  • Tri-Service General Hospital (TW)
  • Chung Yuan Christian University (TW)
Corresponding author
Chan, Yuan-Yu
ORCID
Venue
BMC Psychiatry
Publisher
Springer Science and Business Media LLC
Published
2020-05-01
Volume
20
Issue
1
Pages
195-195
ISSN
1471-244X (ISSN-L)
DOI
10.1186/s12888-020-02566-4
PMC
PMC7193366
OpenAlex
W3022782640
Cited by
176
References
80
Citations by year
2026: 20 · 2025: 26 · 2024: 38 · 2023: 42 · 2022: 24 · 2021: 23 · 2020: 2
FWCI
3.33
Type
journal article
Language
en
Open access
Licence
Locations
  • BMC Psychiatry (publishedVersion, cc-by)
  • Research Square (acceptedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • AFTYGH (10831)
  • TYAFGH-D (109026)
Topics
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Sleep and related disorders
  • Social Sciences › Psychology › Clinical Psychology › Mindfulness and Compassion Interventions
  • Health Sciences › Medicine › Physiology (medical) › Obstructive Sleep Apnea Research
Keywords
yoga, sleep quality, insomnia, women, breast cancer, menopause, postmenopausal women
MeSH terms
Female, Humans, Sleep Initiation and Maintenance Disorders, Quality of Life, Recreation, Sleep, Yoga

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