This 10-year longitudinal study is from Norway. 630 subjects who responded to questionnaires at age 13 + 7 follow-ups over 10 years. Jogging and cycling, skiing and hiking, and ball games, showed a high degree of tracking from age 15 to 23. The findings indicate low associations between participation in specific types of activities during adolescence and global leisure-time physical activity in young adulthood, while participation in several adolescent physical activities simultaneously was moderately related to later activity. Thus, being involved in various types of physical activity may offer good opportunities for establishing lifelong involvement in physical activity, independent of the specific type of activity.