Comparison groups in yoga research: a systematic review and critical evaluation of the literature
Language: 
English
Short Title: 
Comparison groups in yoga research
Abstract: 

OBJECTIVES: Comparison groups are essential for accurate testing and interpretation of yoga intervention trials. However, selecting proper comparison groups is difficult because yoga comprises a very heterogeneous set of practices and its mechanisms of effect have not been conclusively established. METHODS: We conducted a systematic review of the control and comparison groups used in published randomized controlled trials (RCTs) of yoga. RESULTS: We located 128 RCTs that met our inclusion criteria; of these, 65 included only a passive control and 63 included at least one active comparison group. Primary comparison groups were physical exercise (43%), relaxation/meditation (20%), and education (16%). Studies rarely provided a strong rationale for choice of comparison. Considering year of publication, the use of active controls in yoga research appears to be slowly increasing over time. CONCLUSIONS: Given that yoga has been established as a potentially powerful intervention, future research should use active control groups. Further, care is needed to select comparison conditions that help to isolate the specific mechanisms of yoga's effects.

Author(s): 
Park, Crystal L.
Groessl, Erik
Maiya, Meghan
Sarkin, Andrew
Eisen, Susan V.
Riley, Kristen
Elwy, A. Rani
Item Type: 
Journal Article
Publication Title: 
Complementary Therapies in Medicine
Journal Abbreviation: 
Complement Ther Med
Publication Date: 
2014-10
Publication Year: 
2014
Pages: 
920-929
Volume: 
22
Issue: 
5
ISSN: 
1873-6963
DOI: 
10.1016/j.ctim.2014.08.008
Library Catalog: 
PubMed
Extra: 
PMID: 25440384 PMCID: PMC4254537

Turabian/Chicago Citation

Crystal L. Park, Erik Groessl, Meghan Maiya, Andrew Sarkin, Susan V. Eisen, Kristen Riley and A. Rani Elwy. 2014-10. "Comparison groups in yoga research: a systematic review and critical evaluation of the literature." Complementary Therapies in Medicine 22: 5: 920-929. 10.1016/j.ctim.2014.08.008.

Wikipedia Citation

<ref> {{Cite journal | doi = 10.1016/j.ctim.2014.08.008 | issn = 1873-6963 | volume = 22 | pages = 920-929 | last = Park | first = Crystal L. | coauthors = Groessl, Erik, Maiya, Meghan, Sarkin, Andrew, Eisen, Susan V., Riley, Kristen, Elwy, A. Rani | title = Comparison groups in yoga research: a systematic review and critical evaluation of the literature | journal = Complementary Therapies in Medicine | date = 2014-10 | pmid = | pmc = }} </ref>