PDF(Pubmed)
Abstract：
UNASSIGNED: Although manual pressure, such as that used during a massage, is often associated with pain, it can simultaneously be perceived as pleasant when applied to certain body areas. We hypothesized that stimulation of myofascial trigger points (TPs) leads to simultaneous pain and pleasure. TPs are hyperirritable points located in the taut band of the skeletal muscle.
UNASSIGNED: In this study, we measured the muscle tone, muscle stiffness, and pressure pain threshold of TPs and control points in the left brachioradialis muscle of 48 healthy participants. We also applied deep compression to the two points and collected subjective data on pain, pleasantness, unpleasantness, and relief.
UNASSIGNED: Greater muscle stiffness was observed in the TPs versus control points (t = 6.55, p < 0.001), and the pain threshold was significantly lower in the TPs (t = -6.21, p < 0.001). Unpleasantness ratings after deep compression were significantly lower in the TPs compared with control points (t = -2.68, p < 0.05). Participants experienced greater relief at the TPs compared with control points (t = 2.01, p < 0.05), although the perceived pain did not differ between the two types of points.
UNASSIGNED: We compared the properties of TPs and control points, and found that deep compression at TPs was associated with higher muscle tone and stiffness, lower unpleasantness ratings, and higher relief ratings compared with the control points. These findings suggest that, at least for some TPs, pain and pleasantness are simultaneously elicited by deep pressure stimulation.
UNASSIGNED: In this study, we measured the muscle tone, muscle stiffness, and pressure pain threshold of TPs and control points in the left brachioradialis muscle of 48 healthy participants. We also applied deep compression to the two points and collected subjective data on pain, pleasantness, unpleasantness, and relief.
UNASSIGNED: Greater muscle stiffness was observed in the TPs versus control points (t = 6.55, p < 0.001), and the pain threshold was significantly lower in the TPs (t = -6.21, p < 0.001). Unpleasantness ratings after deep compression were significantly lower in the TPs compared with control points (t = -2.68, p < 0.05). Participants experienced greater relief at the TPs compared with control points (t = 2.01, p < 0.05), although the perceived pain did not differ between the two types of points.
UNASSIGNED: We compared the properties of TPs and control points, and found that deep compression at TPs was associated with higher muscle tone and stiffness, lower unpleasantness ratings, and higher relief ratings compared with the control points. These findings suggest that, at least for some TPs, pain and pleasantness are simultaneously elicited by deep pressure stimulation.
摘要：
■虽然手动压力，比如在按摩过程中使用的，通常与疼痛有关，当应用于某些身体部位时，它可以同时被认为是令人愉快的。我们假设对肌筋膜触发点（TP）的刺激会导致同时的疼痛和愉悦。TP是位于骨骼肌的拉紧带中的过度刺激点。
■在这项研究中，我们测量了肌肉的张力，肌肉僵硬，48名健康参与者的TP和左臂腰肌控制点的压力疼痛阈值。我们还对这两个点应用了深度压缩，并收集了疼痛的主观数据，愉快,不愉快,和救济。
■与对照组相比，在TP中观察到更大的肌肉僵硬度（t=6.55，p<0.001），并且在TP中疼痛阈值显着降低（t=-6.21，p<0.001）。深度压缩后，TP的不愉快评分明显低于对照组（t=-2.68，p<0.05）。与控制点相比，参与者在TP处经历了更大的缓解(t=2.01，p<0.05)，尽管两种类型的点之间的感觉疼痛没有差异。
■我们比较了TP和控制点的属性，并发现TP的深度压缩与更高的肌肉张力和僵硬有关，较低的不愉快评级，和更高的救济评级与控制点相比。这些发现表明,至少对于一些TP来说，深层压力刺激同时引起疼痛和愉悦。
■在这项研究中，我们测量了肌肉的张力，肌肉僵硬，48名健康参与者的TP和左臂腰肌控制点的压力疼痛阈值。我们还对这两个点应用了深度压缩，并收集了疼痛的主观数据，愉快,不愉快,和救济。
■与对照组相比，在TP中观察到更大的肌肉僵硬度（t=6.55，p<0.001），并且在TP中疼痛阈值显着降低（t=-6.21，p<0.001）。深度压缩后，TP的不愉快评分明显低于对照组（t=-2.68，p<0.05）。与控制点相比，参与者在TP处经历了更大的缓解(t=2.01，p<0.05)，尽管两种类型的点之间的感觉疼痛没有差异。
■我们比较了TP和控制点的属性，并发现TP的深度压缩与更高的肌肉张力和僵硬有关，较低的不愉快评级，和更高的救济评级与控制点相比。这些发现表明,至少对于一些TP来说，深层压力刺激同时引起疼痛和愉悦。
