Effects of intermittent high frequency electrical stimulation on denervated EDL muscle of rabbit.
This study was performed to determine whether electrical stimulation can retard denervation-induced changes. The denervated extensor digitorum longus of the rabbit, a fast-twitch muscle, was stimulated at a rate mimicking its motoneuron firing pattern. The 100-Hz stimulation given intermittently subjected the muscle to a low mean total daily frequency of 1.6 Hz. Four weeks of stimulation resulted in no effect upon the denervated stimulated muscle. This stimulation protocol, therefore, is unable to substitute for the lost neuronal influence of the nerve. The muscle contralateral to the stimulated side showed physiological changes making it unsuitable to serve as a control.
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Department of Neurology, Johannes Gutenberg University Clinics, Mainz, West Germany.
D000818:Animals; D004558:Electric Stimulation; D004576:Electromyography; D009119:Muscle Contraction; D009121:Muscle Denervation; D009132:Muscles / Q000502:physiology* / Q000503:physiopathology; D009133:Muscular Atrophy / Q000503:physiopathology; D011817:Rabbits