As a Group Fitness Instructor, he/she is responsible for providing group fitness instruction while monitoring and educating members on fitness and safety in an enjoyable atmosphere. Live by the RETRO values – integRity, dEdication, consisTency, expeRience and innOvation. . . Responsibilities of Group Fitness Instructor. ⦁ Teaching scheduled classes, beginning & ending on time. ⦁ Providing adequate warm-up, class content, stretching & cool down. ⦁...