Gulick Dawn T
Widener University, Institute for Physical Therapy Education, One University Place, Chester, PA 19013, USA.
J Bodyw Mov Ther. 2018 Apr;22(2):341-345. doi: 10.1016/j.jbmt.2017.10.012. Epub 2017 Oct 28.
A myofascial trigger point (MTrP) has been defined as a hyperirritable, palpable nodule in a skeletal muscle. The signs and symptoms of a MTrP include muscle pain, weakness, and dysfunction. MTrPs are common problems associated with soft tissue pathology. Having an intervention to decrease MTrP pain can be clinically valuable.
To determine if a series of six instrument-assisted soft tissue mobilization (IASTM) treatments rendered over three weeks would influence the pressure pain threshold (PPT) of a myofascial trigger point (MTrP).
Randomized, control trial of healthy individuals (n = 29) with MTrPs in the upper trapezius muscle. The intervention was six IASTM treatments rendered over three weeks. Each treatment included 1 min of sweeping with the GT-1/HG-2 (handle bar), 1 min of swivel with the knob of the GT-1/HG-2 directly over the MTrP, 2 min of fanning with the GT-4/HG-8 (convex single bevel), and concluded with 1 min of sweeping with GT-1/HG-2. The outcome measure used a dolorimeter to compare PPT before and after three weeks in both the treatment and control groups.
Paired t-test for PPT pre-test and post-test of the control and treatment groups were p = 0.42159 and p = 0.00003, respectively. A one-way ANOVA of the control and IASTM groups revealed a statistically significant difference (p < 0.0001). The power calculation was greater than 0.99.
A 5-min intervention using three IASTM techniques can effectively increase the PPT of a MTrP in six treatments over a three-week period of time.
肌筋膜触发点（MTrP）被定义为骨骼肌中一个高度敏感、可触及的小结节。MTrP的体征和症状包括肌肉疼痛、无力和功能障碍。MTrP是与软组织病理相关的常见问题。进行干预以减轻MTrP疼痛具有临床价值。
确定在三周内进行一系列六次器械辅助软组织松动术（IASTM）治疗是否会影响肌筋膜触发点（MTrP）的压力疼痛阈值（PPT）。
对29名健康个体进行随机对照试验，这些个体的上斜方肌存在MTrP。干预措施为在三周内进行六次IASTM治疗。每次治疗包括使用GT-1/HG-2（把手）进行1分钟的扫动、在MTrP正上方使用GT-1/HG-2的旋钮进行1分钟的旋转、使用GT-4/HG-8（凸面单斜面）进行2分钟的扇形操作，最后使用GT-1/HG-2进行1分钟的扫动。结局指标使用痛觉计比较治疗组和对照组在三周前后的PPT。
对照组和治疗组PPT的预测试和后测试配对t检验分别为p = 0.42159和p = 0.00003。对照组和IASTM组的单因素方差分析显示存在统计学显著差异（p < 0.0001）。功效计算大于0.99。
在三周时间内进行六次治疗，使用三种IASTM技术进行5分钟的干预可有效提高MTrP的PPT。
