The number of participants in group exercise and in Pilates or yoga classes have not changed appreciably since the 2005 IDEA Fitness Programs & Equipment Survey. What has changed slightly is the length of each class, with a greater number of 60-minute classes now available.

The most recent data were provided by the 286 IDEA business and program director members who responded in February to the online 2006 IDEA Fitness Programs & Equipment Survey. They represented personal training gyms (20%), multipurpose health clubs (18%), fitness-only health clubs (9%), YMCA/YWCA/JCCs (8%) and yoga or Pilates studios (8%), among other types of facilities. Complete survey results appeared in the July–August 2006 issue of IDEA Fitness Manager.