A fitness instructor organizes and conducts fitness classes for groups of people. They teach a variety of classes within a gym or fitness studio. Instructors are responsible for developing class plans, being familiar with various styles of class formats offered, supervising class participants, and leading instructional sessions. They deliver fun, engaging fitness classes designed to improve participants’ mental and physical well-being. This position requires excellent customer service and extensive knowledge of the specific class being taught, along with a good understanding of current fitness trends.