title: Tracking of pedometer-determined physical activity: a 5-year follow-up study of adolescents in Sweden.
abstract: Tracking refers to the tendency for individuals to maintain their rank in a group over time. The authors explored tracking of pedometer-determined physical activity. In October of 2000, 2003, and 2005, data of physical activity as steps per day were collected with sealed Yamax SW-200 pedometers (Tokyo, Japan) for 4 consecutive schooldays in 97 (46 boys and 51 girls) Swedish adolescents (mean age 12.7 in 2000). In general, tracking of pedometer-determined physical activity was low to moderate during adolescence. A sex difference, with boys expressing higher tracking, was seen. Moderate tracking was seen in the individuals who, according to recommendations, were insufficiently active.
authors.affiliation: School of Human Sciences, Division of Physical Education, University of Kalmar, SE 391 82 Kalmar, Sweden.
authors.forename: Anders
authors.initials: A
authors.lastname: Raustorp
authors.forename: Kjell
authors.initials: K
authors.lastname: Svenson
authors.forename: Thommy
authors.initials: T
authors.lastname: Perlinger
mesh_terms: D000293:Adolescent; D002648:Child; D005260:Female; D005500:Follow-Up Studies; D006184:Habits; D006801:Humans; D008297:Male; D018670:Monitoring, Ambulatory / Q000379:methods*; D009043:Motor Activity; D012737:Sex Factors; D013548:Sweden; D016138:Walking