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The Influence of Position Change on Autonomic Nervous System Function

  • Journal of the Korean Society of Physical Medicine
  • Abbr : J Korean Soc Phys Med
  • 2014, 9(1), pp.63-68
  • Publisher : The Korean Society of Physical Medicine
  • Research Area : Medicine and Pharmacy > Physical Therapy > Other physical therapy

김인배 1 Kim EunKyung 2 Jong-Ho Kang 1

1부산가톨릭대학교
2서남대학교

Candidate

ABSTRACT

Purpose:The purpose of this study was to examine the position changes with tilt table on autonomic nervous system using heart rate variability analysis. Methods:Fourty healthy adult males volunteered in this study. The low frequency, high frequency and low frequency/high frequency ratio and mean heart rate, standard deviation of all normal R-R intervals, root mean square of successive differences, heart rate variability index were measured at the tilt table angle of 0。, 45。 and 90。 with pulsoximeter. Data were analyzed one-way ANOVA and LSD post hoc test. Results: The mean heart rate, low frequency and low frequency/high frequency ratio increased significantly at higher angle of tilt table(p<.05). The root mean square of successive differences, heart rate variability index decreased significantly at lower angle of tilt table(p<.05). The standard deviation of all normal R-R intervals, high frequency decreased at higher angle of tilt table did not show significant difference. Conclusion:The symphathetic activity increased significantly at higher angle of tilt table. The parasymphathetic activity decreased at higher angle of tilt table, but the difference were not significant. The autonomic adaptation, balance and heart rate variability decreased significantly at higher angle of tilt table. Based on these results, in the treatment of patients with a change in posture precedence should be carefully treated. Further studies are necessary to determine the most safety and effective methods.

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