What does the suffix -kinesia mean in medical terminology?

The suffix -kinesia is derived from the Greek word "kinesis," which means movement. In medical terminology, it specifically relates to motion or activity. This suffix is commonly used in terms describing various aspects of movement within the body, such as in "hypokinesia," which refers to reduced movement, or "hyperkinesia," indicating excessive movement. Recognizing this root allows one to understand and interpret medical terms relating to physical activity and motion effectively. The other options deal with different concepts—such as study and conditions unrelated to movement—making them distinct from the meaning associated with -kinesia.