Modified Tardieu is primarily used to assess:

Modified Tardieu is primarily used to assess:

• A. Endurance during walking.
• B. Selective motor control of the lower extremities.
• C. Mechanical properties only of soft tissue.
• D. Spasticity and the relationship between neural mechanisms and tissue mechanics via the Tardieu angle.

Answer: (D)

The main idea behind the Modified Tardieu is to separate the neural component of muscle tone from purely mechanical tissue properties by using different stretch speeds and looking at the resulting angles. In this test, you measure how a muscle responds to a slow stretch (minimizing reflex activity) to get the maximal range at slow speed (R2), and then you stretch it quickly to elicit any sudden catch or resistance (R1). The difference between these two measurements, the Tardieu angle (R2 minus R1), reflects how much of the resistance is due to neural factors (spasticity) versus the mechanical properties of the muscle-tendon unit. A larger Tardieu angle indicates a greater neural contribution to the resistance, while a small or zero angle suggests that limitation is mostly mechanical (shortening or contracture). That’s why this choice is best: it directly addresses spasticity and the interplay between neural control and tissue mechanics, which the Modified Tardieu is designed to quantify. It’s not about endurance during walking, selective motor control, or only the mechanical properties in isolation.

The main idea behind the Modified Tardieu is to separate the neural component of muscle tone from purely mechanical tissue properties by using different stretch speeds and looking at the resulting angles. In this test, you measure how a muscle responds to a slow stretch (minimizing reflex activity) to get the maximal range at slow speed (R2), and then you stretch it quickly to elicit any sudden catch or resistance (R1). The difference between these two measurements, the Tardieu angle (R2 minus R1), reflects how much of the resistance is due to neural factors (spasticity) versus the mechanical properties of the muscle-tendon unit. A larger Tardieu angle indicates a greater neural contribution to the resistance, while a small or zero angle suggests that limitation is mostly mechanical (shortening or contracture).

That’s why this choice is best: it directly addresses spasticity and the interplay between neural control and tissue mechanics, which the Modified Tardieu is designed to quantify. It’s not about endurance during walking, selective motor control, or only the mechanical properties in isolation.