Université de Fribourg

Brachialis muscle activity can be assessed with surface electromyography

Staudenmann, Didier ; Taube, Wolfgang

In: Journal of Electromyography and Kinesiology, 2015, vol. 25, no. 2, p. 199–204

The brachialis muscle (BR) represents an important elbow flexor and its activity has so far mainly been measured with intramuscular electromyography (EMG). The aim of this study was to examine whether the activity of the BR can be assessed with surface EMG without interference from the biceps brachii (BB). With eight subjects we measured surface EMG of the arm flexor synergists, BR, BB, and...

Université de Neuchâtel

Theory and computer simulation of the time-dependent selectivity behavior of polymeric membrane ion-selective electrodes

Morf, Werner E. ; Pretsch, Ernö ; de Rooij, Nicolaas F.

In: Journal of Electroanalytical Chemistry, 2008, vol. 614, no. 1-2, p. 15-23

A theoretical treatment of the time-dependent potential response of ion-selective electrodes to sample solutions containing primary and interfering ions is presented. The theory accounts for the influence of ion fluxes in the electrode membrane and the contacting aqueous sample layer and describes the variations in the apparent selectivity behavior as a function of the measuring time. The...