ElectromyographyCopyright: © Mario Irrmischer
Electromyography (EMG) is a measuring technique that is suitable for gathering, recording, and analyzing signals which arise during the activation of muscles. As opposed to the so-called neurological EMG, which is used in human medicine, our focus is on kinesiological EMG. Kinesiological EMG qualifies for the investigation of signals that arise during the voluntary activation of muscles. Electrodes can be stuck on the skin surface for these electromyographic measurements, as shown in the figure. The acquired measurement signals are often normalized by MVC (Maximally Voluntary Contraction) measurements so that the values are comparable for individuals. The evaluations of the signal data can provide indications of muscular strain during work tasks, such as in connection with complex movement sequences when walking on inclined planes or when operating tablets while walking. These objective data support the ergonomic design of new technical solutions, if necessary supplemented by data from questionnaires, etc., so that long-term damage to health can be prevented and the ability to work can be maintained into old age.