Shultz Sarah P, Driban Jeffrey B, Swanik Charles B
Biokinetics Research Laboratory, Athletic Training Division, Department of Kinesiology, Temple University, Philadelphia, PA, USA.
Arch Phys Med Rehabil. 2007 Jun;88(6):780-4. doi: 10.1016/j.apmr.2007.03.012.
To determine whether skin resistance measurements can objectively identify the location of myofascial trigger points (MTPs) and to differentiate between 3 states.
Static group comparison.
Climate-controlled laboratory.
Forty-nine participants (age, 20.5+/-2.6 y) were assigned to 1 of 3 groups based on clinical examination result: absent (n=21), latent (n=16), or active (n=12) MTP.
Not applicable.
Skin resistance (in kilo-ohms).
The 16 data points were divided into 3 categories for analysis: MTP site, surrounding tissue proximal to the MTP (first ring), and area furthest from the MTP (second ring). There was a significant increase in skin resistance between the MTP (403.64+/-124.73 kOmega), first ring (419.66+/-123.04 kOmega), and second ring (454.61+/-163.19 kOmega) (P<.01). The measurements did not differ significantly between the 3 MTP states.
The changes in skin resistance between the MTP and the surrounding tissue support the inclusion of this technique to help identify MTPs. The similarity between MTP states warrants investigation into the physiologic differences at specific anatomic locations.
确定皮肤电阻测量是否能客观识别肌筋膜触发点（MTP）的位置，并区分三种状态。
静态组比较。
气候控制实验室。
49名参与者（年龄，20.5±2.6岁）根据临床检查结果被分为3组之一：无（n = 21）、潜伏（n = 16）或活跃（n = 12）MTP。
不适用。
皮肤电阻（千欧）。
16个数据点分为3类进行分析：MTP部位、MTP近端周围组织（第一环）和距MTP最远的区域（第二环）。MTP（403.64±124.73 kΩ）、第一环（419.66±123.04 kΩ）和第二环（454.61±163.19 kΩ）之间的皮肤电阻有显著增加（P <.01）。三种MTP状态之间的测量结果无显著差异。
MTP与周围组织之间皮肤电阻的变化支持将该技术纳入以帮助识别MTP。MTP状态之间的相似性值得研究特定解剖位置的生理差异。
