The Influence of Relaxation Posture on Respiratory Motor Output and Autonomic Nervous Function

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  • ICHIBA Tomomi
    Department of Physical Therapy School of Health Sciences, Kyorin University Department of Physical Therapy, Graduate Schools of Human Health Sciences of Tokyo Metropolitan University
  • YAMADA Takumi
    Division of Physical Therapy, Faculty of Health Sciences, Tokyo Metropolitan University
  • KERA Takeshi
    Department of Physical Therapy, Nihon Institute of Medical Science
  • AIHARA Akiko
    Department of Physical Therapy, Nihon Institute of Medical Science
  • YATSUNAMI Mitsunobu
    Department of Physical Therapy School of Health Sciences, Kyorin University
  • MIYAGAWA Tetsuo
    Division of Respiratory Care, Showa University Graduate School of Nursing and Rehabilitation Sciences

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Other Title
  • リラクセーション肢位の違いが呼吸運動出力及び自律神経機能に与える影響
  • リラクセーションシイ ノ チガイ ガ コキュウ ウンドウ シュツリョク オヨビ ジリツ シンケイ キノウ ニ アタエル エイキョウ

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[Purpose] The purpose of this study was to investigate the effects of relaxation postures by measuring airway occlusion pressure (P0.1) and heartbeat variability as indicators of respiratory motor output and autonomic nervous function, respectively. [Subjects] Eleven healthy university students (5 males, 6 females, aged 20.3 ± 0.5 years) participated in this study. [Methods] The measurement postures were standing, sitting, forward-leaning sitting, and semi-Fowler's posture. Subjects maintained each posture for four minutes and their respiration and heartbeat variability were measured, following which P0.1 was measured five times in one minute. [Results] P0.1 and heart rate were significantly lower in the semi-Fowler's posture compared with sitting. Also, in terms of heartbeat variability, the activity level of the parasympathetic nervous system was high in the semi-Fowler's posture. [Conclusion] This result suggests that the semi-Fowler's posture is more effective than sitting at reducing heart rate and increasing parasympathetic nervous system activity as a relaxation posture.<br>

Journal

  • Rigakuryoho Kagaku

    Rigakuryoho Kagaku 25 (5), 657-662, 2010

    The Society of Physical Therapy Science

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