The effect of a stimulation pattern on force and fatigue of paralyzed human quadriceps

The effects of several stimulation patterns at constant duty cycle on isometric and isokinetic knee torque development and fatigue-induced torque decline in electrically stimulated paralyzed human quadriceps were studied. The benefit of optimizing the interpulse intervals (IPIs) in comparison to a r...

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Bibliographic Details
Main Authors: Franken, H.M., van Harn, A., Veltink, P.H., Thomsen, M., Boom, H.B.K.
Format: Conference Proceeding
Language:English
Subjects:
Biomedical informatics
Biomedical measurements
Fatigue
Humans
Image analysis
Knee
Muscles
Pulse measurements
Time measurement
Torque measurement
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Summary:The effects of several stimulation patterns at constant duty cycle on isometric and isokinetic knee torque development and fatigue-induced torque decline in electrically stimulated paralyzed human quadriceps were studied. The benefit of optimizing the interpulse intervals (IPIs) in comparison to a repetitive train (constant IPIs) increased with the number of stimulation pulses. Application of an optimized pattern on sustained intermittent stimulation resulted in higher torque-time integral (TTI) per cycle. The overall loss had a typical exponential decay reaching asymptotic values.
DOI:10.1109/IEMBS.1993.979085