Question

______ is the principle whereby improvement occurs when increased demands are made upon the body.
○ overload
○ plateau
○ progression
○ specificity

Explanation:

The Overload principle in exercise physiology states that to improve fitness, the body must be subjected to greater demands than it is accustomed to. Plateau refers to a period where progress stalls. Progression is about gradually increasing intensity, and Specificity is about training for a specific goal. So the principle where improvement occurs with increased demands is Overload.

Answer:

A. Overload