This unit describes the performance outcomes, skills and knowledge required to identify the role of anatomy and physiology knowledge in fitness instruction, and to use that knowledge to develop and instruct safe and effective exercise activities.Knowledge of anatomy and physiology underpins effective performance in a range of work functions for fitness instruction. This unit has direct links to, and supports, a range of units for planning and instructing group and personalised exercise programs.This unit applies to group fitness instructors, gym instructors and personal trainers. They practise in settings such as fitness facilities, gyms, leisure and community centres, client workplaces and homes and outdoor locations, depending on their role.The skills in this unit must be applied in accordance with Commonwealth and State or Territory legislation, Australian standards and industry codes of practice.No occupational licensing, certification or specific legislative requirements apply to this unit at the time of publication.