Many people play sports with their friends. Sports Photography: An Introduction An Introduction to Sports Photography. Some games and many kinds of racing are called sports. This course showcases sports-specific marketing strategies and trends. Sports psychology is the study of how psychological factors influence sports, athletic performance, exercise, and physical activity. Human communities have engaged in sport for reasons as diverse as amusement, religious worship and political stability (Baker, 1988). A professional at a sport is called an athlete. Everyday we can encounter with these people. Sports - is an activity that requires physical actions and skills where individuals or teams compete under a set of rules.