Unknown

Dataset Information

0

Bursting Rate Variability.


ABSTRACT: In this paper, a new electromyographic phenomenon, referred to as Bursting Rate Variability (BRV), is reported. Not only does it manifest itself visually as a train of short periods of accrued surface electromyographic (sEMG) activity in the traces, but it has a deeper underpinning because the sEMG bursts are synchronous with wavelet packets in the D8 subband of the Daubechies 3 (db3) wavelet decomposition of the raw signal referred to as "D8 doublets"-which are absent during muscle relaxation. Moreover, the db3 wavelet decomposition reconstructs the entire sEMG bursts with two contiguous relatively high detail coefficients at level 8, suggesting a high incidence of two consecutive neuronal discharges. Most importantly, the timing between successive bursts shows some variability, hence the BRV acronym. Contrary to Heart Rate Variability (HRV), where the R-wave is easily identified, here, time-localization of the burst requires a statistical waveform matching between the "D8 doublet" and the burst in the raw sEMG signal. Furthermore, statistical fitting of the empirical distribution of return times shows a striking difference between control and quadriplegic subjects. Finally, the BRV rate appears to be within 60-88 bursts per minute on average among 9 human subjects, suggesting a possible connection between BRV and HRV.

SUBMITTER: Martin Del Campo Vera R 

PROVIDER: S-EPMC8674618 | biostudies-literature |

REPOSITORIES: biostudies-literature

Similar Datasets

| S-EPMC5825209 | biostudies-literature
| S-EPMC10333517 | biostudies-literature
| S-EPMC11013825 | biostudies-literature
| 2364606 | ecrin-mdr-crc
| S-EPMC3001896 | biostudies-other
| S-EPMC7390908 | biostudies-literature
| S-EPMC9913831 | biostudies-literature
| S-EPMC5813906 | biostudies-literature
| S-EPMC6716055 | biostudies-literature
| S-EPMC9637627 | biostudies-literature