Define training.

• A. activity that improves performance through a measurable organic change in the body
• B. tangible results from a program
• C. changes in the nervous system
• D. external object control

Answer: (A)

Training is activity designed to drive performance gains by producing measurable changes inside the body. It hinges on planned, repeated stress to physiological systems—muscular, nervous, cardiovascular, and metabolic—that lead to improvements in strength, endurance, power, and technique. The emphasis is on changes that you can measure over time, such as a higher resistance you can lift, a faster pace, or better work capacity.

This makes sense because training is about the body's adaptations, not just the end results or the appearance of progress. While the outcomes are important, they come from the underlying, observable changes in how the body functions. Changes in the nervous system are part of this process, but training includes broader adaptations as well, not only neural ones. External object control isn’t related to the concept of training, since training concerns internal bodily changes in response to structured stress.