<qa>  What is the main inclusion criter?The main inclusion criterion will be the presence of a painful trigger point in the gluteals gluteus maximus or medius and infraspinatus on the same side. The painful trigger point is defined as a distinct hypersensitive taut band within a muscle that begins to radiate diffuse pain into adjacent areas with sustained pressure. In keeping with the study conducted by Srbely et al. the investigators will only include trigger points with a baseline pre-intervention pain pressure threshold PPT value of 35 N or less in order to improve reliability of their detection. The precise location of each trigger point will be marked on the skin using a non-toxic marker for ease of follow-up identification. 