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Schematic representation of the subject’s posture for ultrasound shear wave elastography (SWE) measurement. The vastus lateralis (VL) shear modulus was measured at the following three different knee joint angles: knee full extension in the supine position (A), 90° of knee flexion in the seated position (B), and knee full flexion in the seated position (with the right heel in contact with the hip) (C).
