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Prev Med. 2017 Dec;105:116-126. doi: 10.1016/j.ypmed.2017.08.017. Epub 2017 Sep 4.

The effects of yoga among adults with type 2 diabetes: A systematic review and meta-analysis.

Author information

1
Department of Public Health, University of Massachusetts Lowell, One University Avenue, Southwick 326 A, Lowell, MA 01854, United States. Electronic address: herpreet_thind@uml.edu.
2
Centers for Behavioral and Preventive Medicine, The Miriam Hospital, Coro building, Suite 309, 164 Summit Avenue, Providence, RI 02906, United States.
3
Centers for Behavioral and Preventive Medicine, The Miriam Hospital, Coro building, Suite 309, 164 Summit Avenue, Providence, RI 02906, United States; Department of Medicine, Alpert School of Medicine, Brown University, 593 Eddy Street, Providence, RI 02903, United States.
4
Centers for Behavioral and Preventive Medicine, The Miriam Hospital, Coro building, Suite 309, 164 Summit Avenue, Providence, RI 02906, United States; Department of Psychiatry and Human Behavior, Alpert School of Medicine, Brown University, 700 Butler Dr., Providence, RI 02906, United States; Department of Behavioral and Social Science, Alpert School of Medicine, Brown University, 121 South Main Street, Providence, RI 02903, United States.

Abstract

The purpose of this meta-analysis was to examine the effects of yoga for glycemic control among adults with type 2 diabetes (T2DM). Comprehensive electronic databases searches located 2559 unique studies with relevant key terms. Studies were included if they (1) evaluated a yoga intervention to promote T2DM management, (2) used a comparison group, (3) reported an objective measure of glycemic control at post-intervention, and (4) had follow-up length or post-test of at least 8weeks from baseline. Independent raters coded participant, design and methodological characteristics and intervention content. Summary effect sizes and 95% confidence intervals (CI) were calculated. Twenty-three studies with 2473 participants (mean age=53years; 43% women) met eligibility criteria. Compared with controls, yoga participants were successful in improving their HbA1c (d+=0.36, 95% CI=0.16, 0.56; k=16), FBG (d+=0.58, 95% CI=0.40, 0.76; k=20), and PPBG (d+=0.40, 95% CI=0.23, 0.56; k=14). Yoga was also associated with significant improvements in lipid profile, blood pressure, body mass index, waist/hip ratio and cortisol levels. Overall, studies satisfied an average of 41% of the methodological quality (MQ) criteria; MQ score was not associated with any outcome (Ps >0.05). Yoga improved glycemic outcomes and other risk factors for complications in adults with T2DM relative to a control condition. Additional studies with longer follow-ups are needed to determine the long-term efficacy of yoga for adults with T2DM.

KEYWORDS:

Diabetes; Meta-analysis; Review; Yoga

PMID:
28882745
PMCID:
PMC5653446
DOI:
10.1016/j.ypmed.2017.08.017
[Indexed for MEDLINE]
Free PMC Article

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