TOEFL / Reading practice / Section K959
Read in Daily Life

Read a notice posted in a sports centre.

GYM INDUCTION - WHY IT IS COMPULSORY
You cannot use the gym until you have done a forty-minute induction, and there is no way round this. People assume the induction is about the rules. It is mostly about the machines, several of which are set up differently from the ones in commercial gyms, and two of which will let you load them in a way that is unsafe without complaining about it. Inductions run at eight, one and six on weekdays and are booked online. We hold four places at each session for people who turn up without a booking, so if you are passing, ask. Experienced users often ask to skip it. We used to allow that on request and stopped, because the injuries we saw were not in beginners. They were in people who knew what they were doing on different equipment.
21. What is the induction mainly concerned with?