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Efficacy of yoga for vasomotor symptoms: a randomized controlled trial.
- Author(s): Newton, Katherine M
- Reed, Susan D
- Guthrie, Katherine A
- Sherman, Karen J
- Booth-LaForce, Cathryn
- Caan, Bette
- Sternfeld, Barbara
- Carpenter, Janet S
- Learman, Lee A
- Freeman, Ellen W
- Cohen, Lee S
- Joffe, Hadine
- Anderson, Garnet L
- Larson, Joseph C
- Hunt, Julie R
- Ensrud, Kristine E
- LaCroix, Andrea Z
- et al.
Published Web Locationhttp://10.0.4.73/GME.0b013e31829e4baa
No data is associated with this publication.
ObjectiveThis study aims to determine the efficacy of yoga in alleviating vasomotor symptoms (VMS) frequency and bother.
MethodsThis study was a three-by-two factorial, randomized controlled trial. Eligible women were randomized to yoga (n = 107), exercise (n = 106), or usual activity (n = 142), and were simultaneously randomized to a double-blind comparison of ω-3 fatty acid (n = 177) or placebo (n = 178) capsules. Yoga intervention consisted of 12 weekly 90-minute yoga classes with daily home practice. Primary outcomes were VMS frequency and bother assessed by daily diaries at baseline, 6 weeks, and 12 weeks. Secondary outcomes included insomnia symptoms (Insomnia Severity Index) at baseline and 12 weeks.
ResultsAmong 249 randomized women, 237 (95%) completed 12-week assessments. The mean baseline VMS frequency was 7.4 per day (95% CI, 6.6 to 8.1) in the yoga group and 8.0 per day (95% CI, 7.3 to 8.7) in the usual activity group. Intent-to-treat analyses included all participants with response data (n = 237). There was no difference between intervention groups in the change in VMS frequency from baseline to 6 and 12 weeks (mean difference [yoga--usual activity] from baseline at 6 wk, -0.3 [95% CI, -1.1 to 0.5]; mean difference [yoga--usual activity] from baseline at 12 wk, -0.3 [95% CI, -1.2 to 0.6]; P = 0.119 across both time points). Results were similar for VMS bother. At week 12, yoga was associated with an improvement in insomnia symptoms (mean difference [yoga - usual activity] in the change in Insomnia Severity Index, 1.3 [95% CI, -2.5 to -0.1]; P = 0.007).
ConclusionsAmong healthy women, 12 weeks of yoga class plus home practice, compared with usual activity, do not improve VMS frequency or bother but reduce insomnia symptoms.
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