Join the WFOB “42-Get Healthy Challenge” , purchase GPT passes or sign up for a GPT membership and have access to Group Personal Training and learn healthy habits to last a lifetime. Earn results when attending GPT sessions (group personal training). WFOB Team Coaches lead these fun and effective high, intensity 30 minute GPT sessions to help you reach your fitness goals and learn proper form and technique. GPT (group personal training) sessions must be reserved 24 hours in advance via the WFOB software or by calling 617-227-1221.(schedule subject to change).