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Figure 2 | SpringerPlus

Figure 2

From: Effect of exercise-induced muscle damage on muscle hardness evaluated by ultrasound real-time tissue elastography

Figure 2

Changes in the axial RTE image superimposed on the B-mode image of a representative subject before and at day 4 after exercise. The rectangular ROIs were placed within the MG (B) and a reference material (A) on an RTE image obtained at each measurement time. The color code indicated the relative strain of the tissues and the reference material to the compression force within the field of view, and ranged from red (soft) to blue (hard), with green indicating average strain. The compression velocity during scan was expressed as a numeric scale ranging from levels 1–6 on the lateral part of the RTE image (recommended velocity by manufacturer: 3–5 levels). Compared with the pre-exercise RTE image, the post-exercise RTE image showed a decrease in the red region and an increase in the blue and green regions in the ROI in the MG.

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