摘要: |
Bicycle riding is one of the most popular recreational activities in the United States. The National Sporting Goods Association (1992) estimates that bicycle riding was the third leading U.S. recreational activity in 1991, after exercise walking and swimming. In addition, bicycle riding is an important means of transportation. The Bicycle Institute of America (1993) estimates that there were about 4.3 million Americans who regularly commuted to work in 1992. Bicycle riding is also a risky activity, as indicated by the large numbers of injuries and deaths involving bicycles every year. According to the U.S. Consumer Product Safety Commission's (CPSC) National Electronic Injury Surveillance System (NEISS), an injury reporting system that consists of a statistical sample of the nation's hospital emergency rooms, there have been about one-half million nonfatal bicycle-related injuries treated in hospital emergency rooms every year since the early 1970s, when NEISS became operational. |