Efficacy study of a vest-type device for positional therapy in position dependent snorers

Ji Ho Choi, Young Hwan Park, Jung Hwa Hong, Se Joong Kim, Dong Sun Park, Soichiro Miyazaki, Seung Hoon Lee, Chol Shin, JungBok Lee

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17 Citations (Scopus)


This study was performed to evaluate the efficacy of positional therapy using a recently developed vest-type device to treat snoring in positional-dependent snorers. Seventeen (60.7%) of the 28 subjects were diagnosed as position-dependent snorers with or without mild obstructive sleep apnea through laboratory nocturnal polysomnography and were included in a pre- and post-treatment comparative parallel study. The mean total snoring rate (from 36.7 ± 20.6% to 15.7 ± 16.2%, P < 0.0001) and snoring rate in the supine position (from 45.8 ± 22.8% to 25.4 ± 20.6%, P < 0.0001) decreased significantly with use of the vest. The mean percent change of total snoring rate between baseline and with the positional device was significant (63.5 ± 22.5%, P < 0.0001). Of the 17 subjects, 15 (88.2%) decreased their snoring rate more than 50% without subjective adverse effects. There were no significant differences in sleep efficiency, arousal index, and wake after sleep onset while sleeping with the vest-type positional device. In conclusion, positional therapy using the recently developed vest-type device is effective at decreasing snoring without subjective and objective adverse effects in position-dependent snorers with or without mild obstructive sleep apnea.

Original languageEnglish
Pages (from-to)181-187
Number of pages7
JournalSleep and Biological Rhythms
Issue number3
Publication statusPublished - 2009 Jul 1



  • Positional therapy
  • Sleep device
  • Snoring

ASJC Scopus subject areas

  • Physiology
  • Physiology (medical)
  • Neurology
  • Neuropsychology and Physiological Psychology

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