Fitness: The ability to perform moderate to vigorous levels of physical activity without undue fatigue and the capability of maintaining such ability throughout life. (American College of Sports Medicine)

Fundamental Movement Skills: Gross motor skills that are the foundational movements for more complex and specialized skills required by children throughout their lives to competently and confidently participate in different games, sports, and recreational activities offered at school and in the community. (ACE Youth Fitness Manual) 

Health: Health is a state of complete physical, mental, and social well-being and not merely the absence of disease or infirmity. (World Health Organization) 

Obesity: Obesity is defined as a BMI at or above the 95th percentile for children of the same age and sex. (Centers for Disease Control and Prevention)

Physical Activity: All movements in everyday life, including work, recreation, exercise, and sporting activities. (World Health Organization) 

Physical Education: Physical education provides students with a planned, sequential, K-12 standards-based program of curricula and instruction designed to develop motor skills, knowledge and behaviors for active living, physical fitness, sportsmanship, self-efficacy, and emotional intelligence. (SHAPE America)

Physical Literacy: The ability, confidence, and desire to be physically active for life. (Aspen Institute Physical Literacy Working Group)

Sport: All forms of physical activity that, through organized or casual play, aim to express or improve physical fitness and mental well-being. Participants may be motivated by internal or external rewards, and competition may be with others or themselves (personal challenge). (Aspen Institute Project Play)