Abstract
Various electrical stimuli with frequencies from 10 Hz to 1000 Hz and pulse widths from 10 μs to 1000 μs were applied to seven spinal-cord injured patients with spasticity of the knee muscle. Spasticity was assessed with the pendulum test and EMG activity in the quadriceps and hamstrings. No universal optimum combination of stimulation parameters could be established but stimuli of 100 Hz and 100 μs pulse width were more effective than other combinations. Subjective remarks of patients regarding the effects over 24 h did not always correlate with measured data obtained within one hour after stimulation.
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Vodovnik, L., Stefanovska, A. & Bajd, T. Effects of stimulation parameters on modification of spinal spasticity. Med. Biol. Eng. Comput. 25, 439–442 (1987). https://doi.org/10.1007/BF02443365
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DOI: https://doi.org/10.1007/BF02443365