The stretch-shortening cycle effect is not associated with cortical or spinal excitability modulations.

ABSTRACT: It is unclear whether cortical and spinal excitability modulations contribute to enhanced stretch-shortening cycle (SSC) performance. Therefore, this study investigated cortical and spinal excitability modulations during and following shortening of SSC contractions compared with pure shortening (SHO) contractions. Participants (n = 18) performed submaximal voluntary plantar flexion contractions while prone on the dynamometer bench. The right foot was strapped onto the dynamometer's footplate attachment, and the resultant ankle joint torque and crank arm angle were recorded. Cortical and spinal excitability modulations of the soleus muscle were analysed by eliciting compound muscle actional potentials via electrical nerve stimulation, cervicomedullary motor-evoked potentials (CMEPs) via ele

SUBMITTER: Rissmann LF 

PROVIDER: S-EPMC12320215 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature