Requires special training in specified activity; Requires knowledge and experience in specified activity; Customer service principles; Basic exercise science principles and theories; Recordkeeping principles; Applicable federal, state and local laws, codes, regulations; Specialized equipment relevant to area of assignment; Modern office technology; Computers and related software applications. Incumbents may be subjected to moving mechanical parts, electrical currents, vibrations, fumes, odors, dusts, gases, poor ventilation, chemicals, oils, extreme temperatures, inadequate lighting, work space restrictions, and intense noises.