How does instrument-assisted adjusting differ from manual HVLA in force application?

How does instrument-assisted adjusting differ from manual HVLA in force application?

• A. Instrument-assisted uses patient input to determine force.
• B. Manual HVLA relies on fixed impulse.
• C. Instrument-assisted uses a standardized impulse of fixed magnitude and speed, while manual HVLA relies on clinician-generated force.
• D. Instrument-assisted uses slower impulse than HVLA.

Answer: (C)