Table of Contents
ISRN Neurology
Volume 2012, Article ID 153745, 7 pages
http://dx.doi.org/10.5402/2012/153745
Research Article

Decreased Nocturnal Awakenings in Young Adults Performing Bikram Yoga: A Low-Constraint Home Sleep Monitoring Study

1Sleep Division, Neurology Department, Massachusetts General Hospital, Wang 720, Boston, MA 02114, USA
2Olin Business School, Washington University in St. Louis, Campus Box 1133, One Brookings Dr., St. Louis, MO 63130, USA

Received 12 December 2011; Accepted 24 January 2012

Academic Editor: N. Bresolin

Copyright © 2012 Ravi S. Kudesia and Matt T. Bianchi. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

This pilot study evaluated the impact of Bikram Yoga on subjective and objective sleep parameters. We compared subjective (diary) and objective (headband sleep monitor) sleep measures on yoga versus nonyoga days during a 14-day period. Subjects ( 𝑛 = 1 3 ) were not constrained regarding yoga-practice days, other exercise, caffeine, alcohol, or naps. These activities did not segregate by choice of yoga days. Standard sleep metrics were unaffected by yoga, including sleep latency, total sleep time, and percentage of time spent in rapid eye movement (REM), light non-REM, deep non-REM, or wake after sleep onset (WASO). Consistent with prior work, transition probability analysis was a more sensitive index of sleep architecture changes than standard metrics. Specifically, Bikram Yoga was associated with significantly faster return to sleep after nocturnal awakenings. We conclude that objective home sleep monitoring is feasible in a low-constraint, real-world study design. Further studies on patients with insomnia will determine whether the results generalize or not.