Fig. 3

Localization of myofascial trigger points (mTrPs) within the upper trapezius muscles. The graphs intend to provide information on the localization of mTrPs within trapezius muscles by capturing the linearly measured distances between the signal alteration attributed to the mTrP and the muscle insertion of the trapezius muscle (x-axis) in relation to the entire length of the trapezius muscle (y-axis) for both sides, respectively. Measurements of T2 values of signal alterations attributed to mTrPs were achieved in nine subjects per side