While more than 50% of all Americans are considered 'frequent' sports participants,  12% are classified as 'regular' sports participants and 15% are active on a 'casual' basis

Unfortunately, 23% of all Americans are not active at all — according to the Sporting Goods Manufacturers Association's Sports Participation in America report (2010 edition).  In all, 92 activities are featured in this annual report on athletic, recreational, and exercise trends in the United States.

For each sport listed in this study, there are a series of statistics that showcase total and 'core' participation; participation based on gender; the average age of the participant; the average annual household income of the participant; the average number of days of play per participant; and the percentage of participants that played that sport for the first time.

This study – an expanded version of SGMA's Sports & Fitness Participation Topline Report released in March — also reports on some other factors which are having a significant impact on the activity levels of all Americans.