TY  - JOUR
PY  - 2007//
TI  - Travel by walking before and after school and physical activity among adolescent girls
JO  - Archives of pediatrics and adolescent medicine
A1  - Saksvig, Brit I.
A1  - Catellier, Diane J.
A1  - Pfeiffer, Karin
A1  - Schmitz, Kathryn H.
A1  - Conway, Terry L.
A1  - Going, Scott
A1  - Ward, Dianne
A1  - Strikmiller, Patty
A1  - Treuth, Margarita S.
SP  - 153
EP  - 158
VL  - 161
IS  - 2
N2  - OBJECTIVE: To examine how "travel by walking" before and after school contributes to total physical activity of adolescent girls. DESIGN: Cross-sectional sample. SETTING: Thirty-six middle schools from Arizona, Maryland, Minnesota, Louisiana, California, and South Carolina participating in the Trial of Activity for Adolescent Girls (TAAG). PARTICIPANTS: Seventeen hundred twenty-one sixth-grade girls consented to participate; adequate information was available for 1596 participants (93%). MAIN EXPOSURE: Travel by walking before school, after school, and before and after school combined assessed from the 3-Day Physical Activity Recall. MAIN OUTCOME MEASURE: Mean minutes of physical activity measured by accelerometry were estimated for total physical activity (light, moderate, vigorous), moderate to vigorous activity (MVPA), and MVPA of 3 metabolic equivalents. RESULTS: Travel by walking was reported by 14% of participants before school and 18% after school. Girls who reported travel by walking before and after school (combined) had 13.7 more minutes (95% confidence interval, 1.2-26.3) of total physical activity and 4.7 more minutes (95% confidence interval, 2.2-7.2) of MVPA than girls who did not report this activity. Before-school and after-school walkers (but not both) accumulated 2.5 more minutes (95% confidence interval, 0.10-4.9) and 2.2 more minutes (95% confidence interval, 0.24-4.2) of MVPA on an average weekday, respectively, than nonwalkers. CONCLUSION: Our results provide evidence that walking to and from school increases weekday minutes of total physical activity and MVPA for middle-school girls.<p /> <p>Language: en</p>
LA  - en
SN  - 1072-4710
UR  - http://dx.doi.org/10.1001/archpedi.161.2.153
ID  - ref1
ER  -