1. The effect of abdominal functional electrical stimulation on blood pressure in people with high level spinal cord injury.
- Author
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Bojanic T, McCaughey EJ, Finn HT, Humburg P, McBain RA, Lee BB, Gandevia SC, Boswell-Ruys CL, and Butler JE
- Subjects
- Humans, Male, Female, Adult, Middle Aged, Cough physiopathology, Electric Stimulation Therapy methods, Transcutaneous Electric Nerve Stimulation methods, Young Adult, Treatment Outcome, Spinal Cord Injuries physiopathology, Spinal Cord Injuries rehabilitation, Spinal Cord Injuries therapy, Spinal Cord Injuries complications, Blood Pressure physiology, Abdominal Muscles physiopathology
- Abstract
Study Design: Single centre training study., Objectives: To investigate, in a group of people with spinal cord injury (SCI), the effect of transcutaneous functional electrical stimulation of the abdominal muscles (abdominal FES) during cough training on blood pressure (BP), and how it is affected by injury characteristics and alters over time., Setting: Laboratory and community., Methods: Sixteen participants with SCI (C4-T5) underwent 25 of abdominal FES cough training (5 sets of 10 stimulated coughs) over 6 weeks as part of a previously published study on the effect of abdominal FES training on cough. Systolic BP (SBP), diastolic BP (DBP) and calculated mean arterial pressure (MAP) were measured at the completion of each set., Results: Abdominal FES coughing resulted in an average ~30% acute increase in BP from initial resting BP across all sessions in almost all participants (p < 0.001). However, the increase in BP during abdominal FES coughs from rest reduced over the 25 sessions of training by ~35% for SBP, MAP and DBP (p = 0.024, p = 0.013 and p = 0.042, respectively). There was no meaningful change in resting BP over time (p = 0.935, p = 0.705 and p = 0.988, respectively). Overall, increases in BP during abdominal FES coughs were greatest for those with chronic injuries and cervical injuries., Conclusions: Transcutaneous abdominal FES during cough training acutely increases BP. However, the magnitude of the increase is reduced after 25 sessions of training. Abdominal FES may offer a solution to combat orthostatic hypotension, but its effectiveness may diminish over time., Competing Interests: Competing interests: The authors declare no competing interests. Ethics: The study upheld the Declaration of Helsinki and was authorised by the Prince of Wales Hospital Human Research Ethics Committee, Australia (2011 HREC ref. 05/008). Written informed consent was obtained from all participants prior to commencement of the study protocol., (© 2024. The Author(s), under exclusive licence to International Spinal Cord Society.)
- Published
- 2025
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