Fig. 1From: Reliability of muscle stiffness measures in popliteus, medial and lateral gastrocnemius muscles by ultrasound shear wave elastography in participants with knee osteoarthritis accompanied by myofascial trigger pointsTypical elastography maps of the popliteus muscles. The upper images display color-coded boxes representing muscle stiffness. The bottom images show grayscale sonograms of the muscle. The measurement of shear modulus is conducted within a circular area, and the Q-Box is displayed on the right side for referenceBack to article page