<span>Gradually increasing the demands on your body as you advance in your fitness program is known as progression. You progress to other levels of training, so as to make your body stronger. Specificity is the quality of being specific. Regularity refers to something that happens regularly. Overload is too much burden, and it is not good.</span>
When the server's score is an even number, he serves from the right service court. When his score is an odd number, he serves from the left service court.
