Which statement correctly differentiates HVLA adjustments from mobilization techniques?

Which statement correctly differentiates HVLA adjustments from mobilization techniques?

• A. HVLA uses a high-velocity, low-amplitude thrust to provoke a release in a joint; mobilization uses slower, graded, low-amplitude movements within the joint’s available range to improve mobility without a distinct thrust.
• B. Mobilization uses a high-velocity thrust to provoke a release in a joint.
• C. HVLA and mobilization are identical in speed and amplitude.
• D. Mobilization uses high-amplitude, rapid movements outside the joint’s range.

Answer: (A)

The key idea is how the two techniques deliver movement to the joint. HVLA adjustments involve a brief, rapid impulse—high velocity with low amplitude—delivered to overcome a restrictive barrier and often produce a quick release. Mobilization, on the other hand, uses slower, controlled, graded movements with low amplitude performed within the joint’s available range to improve mobility without a distinct thrust. This distinction is exactly what the statement captures: HVLA is a high-velocity thrust aiming for a release, while mobilization is gradual, within-range work that avoids a thrust. The other options mischaracterize the methods—mobilization isn’t defined by a fast thrust, they aren’t identical in speed/amplitude, and mobilization doesn’t involve high-amplitude movements outside the joint’s range.

The key idea is how the two techniques deliver movement to the joint. HVLA adjustments involve a brief, rapid impulse—high velocity with low amplitude—delivered to overcome a restrictive barrier and often produce a quick release. Mobilization, on the other hand, uses slower, controlled, graded movements with low amplitude performed within the joint’s available range to improve mobility without a distinct thrust. This distinction is exactly what the statement captures: HVLA is a high-velocity thrust aiming for a release, while mobilization is gradual, within-range work that avoids a thrust. The other options mischaracterize the methods—mobilization isn’t defined by a fast thrust, they aren’t identical in speed/amplitude, and mobilization doesn’t involve high-amplitude movements outside the joint’s range.