Correlation of the dynamic behaviour of deefferented primary muscle spindle endings with their static behaviour

Research paper by Uwe Windhorst, Justus Meyer-Lohmann, Jörg Schmidt

Indexed on: 01 Mar '75Published on: 01 Mar '75Published in: Pflügers Archiv - European Journal of Physiology


20 deefferented primary muscle spindle endings, 8 afferents from the extensor digitorum longus muscle (EDL) and 12 from the tibialis anterior muscle (TA), were investigated in 12 anesthetized cats. Dynamic responses of muscle spindles to ramp stretches were correlated with their static responses. The variation in the static and dynamic behaviour was found to be interdependent. The correlation coefficients were higher for EDL spindles than for TA spindles. The correlation coefficients depended upon the definition of the dynamic responses.