1)Umegaki H, et al:Acute effects of static stretching on the hamstrings using shear elastic modulus determined by ultrasound shear wave elastography:differences in flexibility between hamstring muscle components. Man Ther 2015;20:610-613
2)Roots J, et al:Ultrasound elastography in the assessment of post-stroke muscle stiffness:a systematic review. Insights Imaging 2022;13:67. doi:10.1186/s13244-022-01191-x
3)Kobayashi K, et al:Effect of age on shear modulus, muscle thickness, echo intensity of the upper limb, lower limb, and trunk muscles in healthy women. Eur J Appl Physiol 2023;123:797-807
4)Akagi R, et al:Age-related differences in muscle shear moduli in the lower extremity. Ultrasound Med Biol 2015;41:2906-2912