中國醫藥大學機構典藏 China Medical University Repository, Taiwan:Item 310903500/28441
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    题名: Electrophysiologic Effects of a Therapeutic Laser on Myofascial Trigger Spots of Rabbit Skeletal Muscles.
    作者: 陳凱華(Chen KH);洪章仁(Hong CZ);郭芳娟(Kuo FC);許鴻志(Hsu HC);謝悅齡(Yueh-Ling Hsieh)*
    贡献者: 健康照護學院物理治療學系
    关键词: Endplate Noise;Laser;Myofascial Trigger Point;Rabbit
    日期: 2008-11
    上传时间: 2010-09-23 19:55:31 (UTC+8)
    摘要: "OBJECTIVE: To better understand the mechanisms of therapeutic lasers for treating human myofascial trigger points, we designed a blinded controlled study of the effects of a therapeutic laser on the prevalence of endplate noise (EPN) recorded from the myofascial trigger spot (MTrS) of rabbit skeletal muscle.

    DESIGN: In eight rabbits, one MTrS in each biceps femoris muscle was irradiated with a 660-nm, continuous-wave, gallium-aluminum-arsenate (GaAlAs) laser, at 9 J/cm2. The contralateral side of muscle was treated with a sham laser. Each rabbit received six treatments. The immediate and cumulative effects were assessed by the prevalence of EPN with electromyographic (EMG) recordings after the first and last treatments.

    RESULTS: Compared with pretreatment values, the percentages of EPN prevalence in the experimental side after the first and last treatments were significantly reduced (P < 0.01 for both). The change in EPN prevalence in the experimental side was significantly greater than in the control side immediately after the first and last treatments (P < 0.05). However, no significant differences were noted between the first and last treatments (P > 0.05).

    CONCLUSIONS: In our study, immediate and cumulative effects of a GaAlAs laser applied on MTrS were demonstrated on the basis of the assessment of EPN prevalence. It seems that laser irradiation may inhibit the irritability of an MTrS in rabbit skeletal muscle. This effect may be a possible mechanism for myofascial pain relief with laser therapy."
    显示于类别:[物理治療學系暨復健科學碩士班] 期刊論文

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