Abstrakt
Recording muscle electrical activity using surface electromyography is by now a routine neurophysiological approach. Over the last few decades it has moved from being purely experimental into the field of rehabilitation medicine, kinesthesiology and sports science.
In addition to this trend there is increasing interest in the study of a wide variety of movement stereotypes conducted both in and out of water. This has also opened up the new area of electromyographic diagnosis, which is a modification of the basic method of surface EMG in water, known as Water Surface Electromyography (WaS-EMG).
In spite of the fact that modern technology permits an enormous amount of computer post-processing of raw data obtained, the phase of actual recording of electrical activity at the hands of an experimenter remains key. For these reasons the methodology and question of the correct placement and fixation of the electrodes receives significant attention in all neurophysiological methods.
The recording of an EMG signal in an aqueous environment does not differ in its general approach from the standard method for surface EMG, but there are some specific differences. This work deals in summary with the question of Water Surface Electromyography (WaS-EMG) from a research and practical standpoint, including a summary of the results of our key experiments.