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KMID : 1195020160120020059
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Archives of Orthopedic and Sports Physical Therapy
2016 Volume.12 No. 2 p.59 ~ p.65
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A Study of Reduced Reactivity of Upper Trapezius Nerve Fibers Caused by 1Hz and 200Hz Low-frequency Electrical Stimulations
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Park Tae-Sung
Kang Jong-Ho
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Abstract
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The purpose of this study was to examine the effect of electrical stimulation in low- and high- frequency ranges on sensation and pressure-pain thresholds. A group of 54 subjects were randomly assigned to a 1 Hz electrical stimulation group (Group 1) and a 200 Hz electrical stimulation group (Group 2). Sensory threshold and pressure-pain threshold tests were performed before and after electrical stimulation. Electrical stimulation in the low- and high-frequency ranges increased both the sensory and pressure-pain thresholds. Of note, high-frequency electrical stimulation increased the thresholds of sensation and pressure-pain more than that noted with low-frequency electrical stimulation. The findings of this study showed that high-frequency electrical stimulation was more effective than low-frequency electrical stimulation in improving sensation and pressure-pain thresholds.
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KEYWORD
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low frequency electrical stimulation, high frequency electrical stimulation, sensory threshold, pressure pain threshold
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