肌筋膜疼痛為十分普遍的疼痛疾病，其主要特徵為於肌肉緊繃帶上有一特定敏感的引痛點，其引發之疼痛影響到患者日常生活品質，然而患者因不便經常至醫院治療導致病情加劇，是目前最需改進的課題。肌膜引痛點的臨床特徵及治療方法顯示機械性刺激具有療效，唯多數療法需治療人員專業技術或易引發疼痛。振動式刺激之按摩器有抑制疼痛的效果，但對於引痛點之療效仍不明確。本研究的目的為探討振動刺激對肌筋膜疼痛患者的疼痛改善，提供患者於居家治療。

　　本研究針對三十名具活動性引痛點的患者，探討評估兩種振動強度(弱V1、強V2)與兩種治療時間(一T1、三T2分鐘)搭配組合為四組(1)V1T1(2)V1T2(3)V2T1(4)V2T2治療引痛點後，對引痛點疼痛改善的程度。評估參數包括疼痛強度數字型評定量表(NRS值)、疼痛閥值、疼痛忍受度、組織柔順度的改善程度。

　　結果顯示：四組治療後之NRS值皆有改善，各組間INC(治療前-治療後NRS值)無顯著差異。疼痛閥值於第四組(V2T2)有顯著改善，時間因子對IThC(治療後÷治療前疼痛閥值) 有顯著影響。四組治療後疼痛忍受度皆無明顯改善，各組間IToC(治療後÷治療前疼痛忍受度)無顯著差異。第四組(V2T2)治療後其組織柔順度有顯著改善，各組間ITCC(治療後÷治療前組織柔順度)無顯著差異。疼痛忍受度的改善程度IToC與疼痛閥值改善程度IThC具相關性。

　　本研究的結論乃是：振動刺激於引痛點上確實有改善肌筋膜疼痛之療效，其中第四組(V2T2)最具效果。本研究提供振動刺激對引痛點即時療效之有效結果，患者應可利用此治療法達到即時緩解病發疼痛的效果。未來可進一步做長期療效評估，供長期治療參考，並配合病患避免致病主因及持續因子，達到逐漸改善病症的目的。

　　Myofascial pain syndrome (MPS) is a common pain disorder. The MPS is characterized primarily by trigger points which are hyperirritable spots within a palpable taut band of skeletal muscle. The pain caused by the trigger point has influenced on the diary life of MPS patients. The mechanical stimulus to trigger points has been proved to be effective in pain relief from the clinical studies and therapies. But most therapies need to be done with professional technique, otherwise usually cause more pain. Due to the inconvenience to go to hospital or clinic, the MPS patients have been often getting worse and worse. Therefore it is necessary to find some methods which could be used at home. Vibration stimulus from massagers could provide the analgesic effects on pain, but the effect to trigger points is still unknown. This research was to investigate the effect of vibration Stimulus on immediate pain relief for myofascial trigger points, and to provide an appropriate home therapy for MPS patients.

　　The research was to quantitatively evaluate the immediate effect of two different treatment vibration forces (small V1, large V2) and two different treatment durations (T1 = 1 minutes, T2 = 3 minutes). Thirty subjects with active trigger points participated in this clinical experiment were divided into four groups: (1) small force in 1 min (V1T1); (2) small force in 3 min (V1T2); (3) large force in 1 min (V2T1); and (4) large force in 3min (V2T2). Evaluation parameters included numerical pain rating scale(NRS)、pain threshold、pain tolerance、tissue compliance.

　　The results of NRS value have showed that after treatment all four groups are significantly improved (P<0.05) and the INC values (before treatment – after treatment NRS value) of four groups are no significantly different (P>0.05). The pain threshold after treatment is significantly improved only in V2T2 group. IThC (after treatment ÷ before treatment pain threshold) is significantly effected by the time factor. The pain tolerance after treatment are not significantly improved in all groups (P>0.05), the IToC (after treatment ÷ before treatment pain tolerance) are no significantly different between all groups (P>0.05). The tissue compliance after treatment is significantly improved only in V2T2 group, but the ITCC (after treatment ÷ before treatment tissue compliance) are not significantly different between all groups. The IToC and IThC are significantly correlate.

　　The findings of this study indicate that the vibration stimulus seems to be effective in immediate pain relief for myofascial trigger points. This research has suggested that vibration stimulus from massager could provide an effective pain relief in homecare for MPS patients.

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