Answer: MOVEMENT , MOTION
for the area of study entitled kinesi/o/logy, the combining form means MOVEMENT and MOTION
Explanation: Kinesiology otherwise known as human Kinetics is the scientific study of the mechanics of body movement. In other words,we can say that it is the study of human and non human movement scientifically.
In Kinesiology, somethings are addressed like biochemical, psychological, and physiological dynamic principles.
Kinesiology is being studies by Kinesiologists, they study the movement of the human body inorder to ascertain/determine the causes of imbalances in the body system.
They achieve this by testing the muscle inorder to get access to the flow of energy through the body and as well accessing the function of the body.