Stochastically modulated inter-pulse intervals to increase the efficiency of functional electrical stimulation cycling:

Journal of Rehabilitation and Assistive Technologies Engineering

EAAksöz¹ 

关键词: Actuators;    biomedical devices;    electrical stimulation;    man/machine interface;    rehabilitation devices;   

DOI  :  10.1177/2055668318767364

学科分类：工程和技术（综合）

来源: Sage Journals

【 摘 要 】

IntroductionFunctional electrical stimulation cycling has various health benefits, but the mechanical power output and efficiency are very low compared to volitional muscle activation. Stimulation with variable frequency showed significantly higher power output values in experiments with a knee dynamometer. The aim of the present work was to compare stochastic modulation of inter-pulse interval to constant inter-pulse interval stimulation during functional electrical stimulation cycling.MethodsSeventeen able-bodied subjects participated (n = 17). Quadriceps and hamstring muscle groups were stimulated with two activation patterns: P1-constant frequency, P2-stochastic inter-pulse interval. Power output was measured on functional electrical stimulation ergometer.ResultsOverall, mean power output with the stochastically modulated pattern P2 was lower than with P1 (12.57 ± 3.74 W vs. 11.44 ± 3.81 W, P1 vs. P2, p = 0.022), but no significant differences during the first 30 s and the last 30 s were observed.Conc...

【 授权许可】

CC BY