Post activity cuffless blood pressure estimation in a body area network for paraplegic spinal cord injured patient rehabilitation

Joshua C. T. Khoo, Ma Ke, Ian T. H. Brown, Andrew Nunn

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This paper will concern the post activity performance of a non-invasive method of blood pressure estimation through photoplethysmophgraphy (PPG) and ECG implemented within a body area network (BAN) and validated at 2 non-intrusive locations (arm and leg) on paraplegic spinal cord injured (SCI) patients undergoing rehabilitation. The sensors are connected wirelessly with the Bluetooth protocol within the BAN eliminating cumbersome wires between sensors, making it suitable for long-term rehabilitation monitoring. The patient is monitored during 3 predefined levels of activity, followed by a period of unsupervised monitoring in the field. Results show that for long-term, unsupervised monitoring, the estimation performance is directly proportional to the level of activity affecting the attachment of the PPG sensor and thus changing the calibration vectors if located on the arm. Results also show that estimation performance is within the Association for Advancement of Medical Instrumentation (AAMI) requirements for measurements taken from the leg during supervised and unsupervised rehabilitation monitoring.

Original languageEnglish
Title of host publicationProceedings - 2011 4th International Conference on Biomedical Engineering and Informatics, BMEI 2011
EditorsYonghong Peng, Riyi Shi
Place of PublicationPiscataway NJ USA
PublisherIEEE, Institute of Electrical and Electronics Engineers
Number of pages5
ISBN (Electronic)9781424493524
ISBN (Print)9781424493517
Publication statusPublished - 2011
EventInternational Conference on Biomedical Engineering and Informatics (BMEI) 2011 - Shanghai, China
Duration: 15 Oct 201117 Oct 2011
Conference number: 4th


ConferenceInternational Conference on Biomedical Engineering and Informatics (BMEI) 2011
Abbreviated titleBMEI 2011


  • Blood Pressure
  • Body Area Network
  • Photoplethysmophgraphy
  • Rehabilitation
  • Spinal Cord Injury

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