Optimisation of electrode placement for abdominal muscle stimulation

TitleOptimisation of electrode placement for abdominal muscle stimulation
Publication TypeConference Proceedings
Year of Publication2010
AuthorsGollee H, Henderson G
EditorMandl T, Martinek J, Bijak M, Lanmueller H, Mayr W, Pichler M
Conference Name15th Annual Conference of the International Functional Electrical Stimulation Society
Date Published09/2012
PublisherCenter for Medical Physics and Biomedical Engineering, Medical University of Vienna, Vienna Medical School, AKH 4L, Waehringer Guertel 18-20, A-1090 Vienna, Austria
Conference LocationImperial Riding School, Vienna, Austria
KeywordsFuture Applications 1
AbstractHigh level tetraplegic individuals have partial or complete paralysis of their breathing muscles, leading to respiratory complications. Functional electrical stimulation of the abdominal wall muscles through surface electrodes can improve respiratory function. In this study the aim was to find the optimum number and position of the electrodes for abdominal stimulation, based on the response to a stimulation burst. Effectiveness of abdominal stimulation was judged by the resulting movement of the abdominal wall which was measured using a piezoelectric belt worn around the abdomen. Pairs of stimulation channels were applied bilaterally in three different positions: anterior, lateral and posterior. In addition to the response to stimulation of single channel pairs, combinations of anterior & lateral and lateral & posterior channels were evaluated, resulting in five different settings. Experiments were conducted with 10 able bodied individuals. Results show that (i) overall the combination of lateral & posterior channels resulted in the strongest response, (ii) in most subjects, the lateral channels resulted in a comparable response to the stimulation of two channel pairs, and (iii) in some subjects the strongest response was obtained from the anterior channel pair. This suggests that the optimal electrode placement may depend on individual factors such as body shape and composition.