Invisible damage to the body resulting from repeating a movement often is a

The answer is Microtrauma.

The correct answer is "Repetitive strain injury".

Explanation:

The repetitive strain injury (RSI), also known as overuse syndrome, is defined as the invisible damage to the body resulting from repeating a movement. These type of damage can affect the muscles, nerves, ligaments and tendons. RSI mostly affects elderly people and could be the result of repeating a movement with an improper technique or just by overusing the movement.