As a fitness professional, your primary responsibilities include instruction, education, and personal training in health and fitness. You can work as a personal trainer, group fitness instructor, health and wellness professional, and more. As a group trainer, you teach a class of students in a specific style of exercise. You can also choose to work one-on-one or with small groups as a personal trainer to meet their particular needs. Your general duties in any of these fields revolve around teaching safe exercise techniques, but your specific day-to-day tasks can differ significantly from job to job. You need strong communication skills to inspire others and clearly explain how to use any equipment.