Measurement of the Strength of the Posterior Tibial Muscle by Hand-held Dynamometer

Adult flat foot valgus is a degenerative pathology that causes damage to the ligaments of the hindfoot as well as dysfunction of the tendon of the posterior tibial muscle. Currently, there is a lack of a tool allowing a standardized, reliable, reproducible and validated measurement of the strength of the tendon of the posterior tibial muscle in consultation of foot surgery. The hand-held dynamometer could be that tool. The study would consist in measuring the strength of the tendon of the posterior tibial muscle in healthy subjects with a hand-held dynamometer (MicroFET2) by two examiners and compared to isometric reference measurements (CON-TREX CMV Multi-Joint) to validate the reliability of the measurement and its reproducibility.