Exercise-Fitness Specialist - Fitness specialists understand the basic concepts of fitness, health, and wellness to prepare an exercise prescription for an individual beginning an exercise program. A fitness specialist instructs groups and individuals in the safe use of equipment, proper body mechanics, health, eating behaviors, and individualized fitness programs. Their primary concerns are to effectively deliver a variety of exercise assessment, training, rehabilitation, lifestyle and risk factor management mainly for those possessing or at risk for cardiovascular, pulmonary, and metabolic disease.