Title :
Tetanic responses of electrically stimulated paralyzed muscle at varying interpulse intervals
Author :
Carroll, Sara G. ; Triolo, Ronald J.
Author_Institution :
Motion Study Lab., VA Med. Center, Cleveland, OH, USA
Abstract :
The influence of interpulse interval (IPI) on torque output during electrically evoked contractions was investigated for the knee extensor muscles of paralyzed subjects. Risetime, magnitude and relaxation time of the contraction were measured at stimulus IPIs ranging from 7 to 62 ms. Torque output increased as IPIs decreased from 62 to 15 ms. IPIs less than this resulted in an insignificant loss of torque. Risetimes decreased and relaxation times generally increased as IPIs decreased. The effect of prolonged simulation at long (50 ms) and short (12 ms) IPIs was also studied.<>
Keywords :
bioelectric phenomena; muscle; patient treatment; 7 to 62 ms; electrically evoked contractions; electrically stimulated paralyzed muscle; knee extensor muscles; magnitude; paralyzed subjects; prolonged simulation; relaxation time; risetime; tetanic responses; torque output; varying interpulse intervals;
Conference_Titel :
Engineering in Medicine and Biology Society, 1988. Proceedings of the Annual International Conference of the IEEE
Conference_Location :
New Orleans, LA, USA
Print_ISBN :
0-7803-0785-2
DOI :
10.1109/IEMBS.1988.95246
