The effect of heart rate variability on blood pressure is augmented in spinal cord injury and is unaltered by exercise training.

ABSTRACT:

Purpose

To define differences in heart rate and blood pressure variability (HRV/BPV) after spinal cord injury (SCI) compared with uninjured controls, and to determine whether variabilities are impacted by whole-body exercise after SCI.

Methods

Individuals with SCI (n = 40), aged 18-40, and uninjured age/sex-matched controls (n = 22) had HRV and BPV determined during supine paced (0.25 Hz) breathing. Spectral and cross-spectral values were derived for fluctuations at low (LF 0.05-0.15 Hz) and high (HF 0.20-0.30 Hz) frequencies. Thirty-two individuals with SCI further underwent either 6 months of whole-body exercise training (n = 17) or a control intervention (n = 15).

Results

Individuals with SCI had injuries graded A-C in severity, neurological levels of injury C1-T10

SUBMITTER: Solinsky R 

PROVIDER: S-EPMC9270103 | biostudies-literature | 2021 Apr

REPOSITORIES: biostudies-literature