Muscle training area: there must be no less mechanical equipment for muscle training, and there must be various types.

Yoga area: soft blanket. I don't know the scientific name of the kind with a lot of cylindrical soft bars lying on it to roll the waist.

Rest area: tables and chairs, multiple drinking fountains to provide rest, at least one newspaper and magazine about fitness.

Dressing room: There should be a locker with a key. There should be a sink, shower room and toilet in this area.

Aerobic area: Treadmill spinning is the place to start the bike.

Note: there is no need for air conditioning, because people who come here are always sweating. It is best to use air conditioning to cool your body. It is better to cool the light naturally, not too dazzling and not too dark. The ground should be dry, non-slip walls, doors and windows should be soundproof.