If you have read the book Feed, please help!?

Read this paragraph

I paced there. I went around all the chairs. I did them slalom. Men locked into giant wheels with their arms and legs spread out were being wheeled past down the hall. People in smocks were whistling. The men in the wheels stared our, their mouths open, their eyes looking at everything flashing by, but the men were not moving at all. Just looking at the word helpless, in circles, the world going by.

The question I have to answer is, What is the author describing and why doesn't Titus call it by the proper name?

Thanks for the help