Shear wave elastography for assessing rectus femoris stiffness: a study on the interaction and reliability of body position and contraction state

Key Points

• Stiffness assessment focuses on rectus femoris, highlighting the interaction between body position and contraction state.
• Findings show the need for standardized measurement in stiffness evaluation using shear wave elastography, offering a foundational approach.
• Assessment used observational methods to detail the interplay of posture and muscle contraction on measurements.
• Implications suggest that standardized protocols may enhance reliability in biomechanics, sports science, and rehabilitation fields.