In Maximum Velocity late support concentric knee extension, what is the primary effect?

In Maximum Velocity late support concentric knee extension, what is the primary effect?

• A. Propels center of gravity forward.
• B. Decelerates backward thigh rotation.
• C. Absorbs landing shock.
• D. Aids in propulsion.

Answer: (A)

In maximum velocity, during late support the knee extends concentrically to push against the ground and create propulsion. This knee extension generates a propulsive ground reaction force directed forward, which drives the center of gravity forward and helps maintain or increase speed. The other roles described—absorbing landing shock (done mainly earlier in stance with eccentric control) and decelerating thigh rotation—aren’t the primary purpose of this phase. So the key outcome is the forward propulsion of the center of gravity.

In maximum velocity, during late support the knee extends concentrically to push against the ground and create propulsion. This knee extension generates a propulsive ground reaction force directed forward, which drives the center of gravity forward and helps maintain or increase speed. The other roles described—absorbing landing shock (done mainly earlier in stance with eccentric control) and decelerating thigh rotation—aren’t the primary purpose of this phase. So the key outcome is the forward propulsion of the center of gravity.