Bicycling to school is associated with improvements in physical fitness over a 6-year follow-up period in Swedish children

ObjectiveTo examine whether modes of commuting to school at baseline and changes in commuting were related to 6-year changes in cardiorespiratory fitness in youth.MethodsA total of 262 (142 girls) Swedish children (9 years at entry) were measured at baseline (1998/9) and follow-up (2004/5). Mode of commuting to school was assessed by questionnaire and fitness by a maximal bicycle test.ResultsAt baseline, 34% of children used passive modes of commuting (e.g., car, motorcycle, bus, train), 54% walked, and 12% bicycled to school. Six years later the percentage of bicyclists increased 19% and the percentage of walkers decreased 19%. On average, children who bicycled to school increased their fitness 13% (p = 0.03) more than those who used passive modes and 20% (p = 0.002) more than those who walked. Children who used passive modes or walked at baseline and bicycled to school at 6 years later increased their fitness 14% (p = 0.001) more than those who remained using passive modes or walking at follow-up.ConclusionsImplementing initiatives that encourage bicycling to school may be a useful strategy to increase cardiorespiratory fitness of children.

► Bicycling to school increased and walking decreased from childhood to adolescence. ► Bicycling to school in childhood was associated with improvements in fitness. ► Becoming a bicyclist to school was associated with improvement in fitness.