Right-left sEMG burst synchronization of the lumbar erector spinae muscles of seated violin players.

ABSTRACT: Burst-like activation of postural muscles has been previously described and plays a crucial role in elucidating the strategies for postural control adopted by the central nervous system (CNS). A spatio-temporal descriptor of surface electromyographic (sEMG) bursts (STB) is proposed and applied to statistically quantify the burst-like activity of the right and left (R-L) lumbar erector spinae muscle of nine seated violinists playing for two hours. The STB signal is the number of pixels of the high density sEMG (HDsEMG) maps simultaneously showing sEMG amplitude above a given threshold. Burst activity was present in all nine subjects. Four of them met four stringent criteria allowing analysis of frequency, duration, and synchronization between the R-L bursts after 0, 15, 30, 60, 120 min of p

SUBMITTER: Khorrami Chokami A 

PROVIDER: S-EPMC11450191 | biostudies-literature | 2024 Oct

REPOSITORIES: biostudies-literature