1 Citation (Scopus)

Abstract

This study attempted to use the eyesight range to quantify presyncope symptoms (PS), assess the relation between angle of head-up tilt, severity of injury on the American Spinal Injury Association (ASIA) scale, and PS on physiological signals, and determine the notable signals that represent PS in spinal cord injury (SCI) patients. Thirty-eight quadriplegic SCI subjects were recruited, in which the mean blood pressure (MBP), oxygen saturation (SpO2), heart rate (HR), and the low-frequency/high-frequency (LF/HF) ratio of the HR variability were measured during tilting up of the head. The SpO2 and LF/HF differed significantly with the level of PS. These findings of the studied variables suggest that SpO2 and LF/HF are the physiological signals that are most sensitive to detect in PS, and could be used for the optimal biofeedback design of tilt-table training systems aimed at overcoming posture hypotension in SCI patients.

Original languageEnglish
Pages (from-to)681-688
Number of pages8
JournalMedical and Biological Engineering and Computing
Volume46
Issue number7
DOIs
Publication statusPublished - Jul 2008

Fingerprint

Syncope
Spinal Cord Injuries
Biofeedback
Blood pressure
Heart Rate
Head
Posture
Oxygen
Hypotension
Blood Pressure
Wounds and Injuries

Keywords

  • Blood pressure
  • Heart rate variability
  • Oxygen saturation
  • Presyncope symptoms
  • Spinal cord injury

ASJC Scopus subject areas

  • Biomedical Engineering
  • Health Informatics
  • Health Information Management
  • Computer Science Applications
  • Computational Theory and Mathematics

Cite this

Relationships between physiological responses and presyncope symptoms during tilting up in patients with spinal cord injury. / Liu, David S.; Chang, Walter H.; Wong, Alice M K; Chen, Shih Ching; Lin, Kang Ping; Lai, Chien Hung.

In: Medical and Biological Engineering and Computing, Vol. 46, No. 7, 07.2008, p. 681-688.

Research output: Contribution to journalArticle

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AU - Lin, Kang Ping

AU - Lai, Chien Hung

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