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Electrical Stimulation Using Kilohertz-Frequency Alternating Current
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DOI：10.2522/ptj.20080060.png)
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摘要
En 中文
Transcutaneous electrical stimulation using kilohertz-firequency alternating current (AC) became popular in the 1950s with the introduction of interferential currents, promoted as a means of producing depth-efficient stimulation of nerve and muscle. Later, Russian current was adopted as a means of muscle strengthening. This article reviews some clinically relevant, laboratory-based studies that offer an insight into the mechanism of action of kilohertz-frequency AC. It provides some answers to the question: What are the optimal stimulus parameters for eliciting forceful, yet comfortable, electrically induced muscle contractions? It is concluded that the stimulation parameters commonly used clinically (Russian and interferential currents) are suboptimal for achieving their stated goals and that greater benefit would be obtained using short-duration (2-4 millisecond), rectangular bursts of kilohertz-frequency AC with a frequency chosen to maximize the desired outcome.
Keyword:
QUADRICEPS FEMORIS
TORQUE PRODUCTION
SKIN IMPEDANCE
FATIGUE
DISCOMFORT
CONDUCTION
STRENGTH
DURATION
FORCE
MOTOR
期刊
IF:
3.3
论文数:
5.0K
被引数:
1.6W
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