Age-Related Changes in Types and Contexts of Physical Activity in Middle School Girls

Background:Proximity to routine destinations is an important correlate of physical activity. We examined the association between distance from school and physical activity in adolescent girls.Methods:We mapped the addresses of 1554 sixth-grade girls who participated in the Trial of Activity for Adolescent Girls (TAAG) Study and calculated the shortest distance from home to school along the street network. Using a hierarchical design we examined the association between MET-weighted moderate to vigorous physical activity (MW- MVPA) and distance to school, while controlling for potential confounders.Results:Distance to school was inversely associated with weekday MW- MVPA for middle school girls. For every mile the girls lived from their schools, they engaged in an average of 13 fewer MET-weighted minutes per week.Conclusions:Distance to school is inversely associated with MW-MVPA. The most adversely affected girls lived more than 5 miles from school. Time spent commuting could explain reduced time for physical activity.

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Compensation or displacement of physical activity in middle-school girls: the Trial of Activity for Adolescent Girls

Yearbook of Sports Medicine ◽

10.1016/s0162-0908(10)79768-3 ◽

2011 ◽

Vol 2011 ◽

pp. 113-115

Author(s):

R.J. Shephard

Keyword(s):

Physical Activity ◽

Middle School ◽

Adolescent Girls ◽

Middle School Girls ◽

School Girls

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Dose Response Effect Of Physical Activity And Behavioral Regulation Measures On The Science Achievement Of At-risk Middle School Girls

Medicine & Science in Sports & Exercise ◽

10.1249/01.mss.0000517419.87856.20 ◽

2017 ◽

Vol 49 (5S) ◽

pp. 210

Author(s):

Jennifer A. Gatz ◽

Angela M. Kelly

Keyword(s):

Physical Activity ◽

Middle School ◽

At Risk ◽

Dose Response ◽

Science Achievement ◽

Behavioral Regulation ◽

Middle School Girls ◽

Response Effect ◽

School Girls ◽

Dose Response Effect

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Promoting Physical Activity in Middle School Girls

American Journal of Preventive Medicine ◽

10.1016/j.amepre.2007.11.018 ◽

2008 ◽

Vol 34 (3) ◽

pp. 173-184 ◽

Cited By ~ 189

Author(s):

Larry S. Webber ◽

Diane J. Catellier ◽

Leslie A. Lytle ◽

David M. Murray ◽

Charlotte A. Pratt ◽

...

Keyword(s):

Physical Activity ◽

Middle School ◽

Middle School Girls ◽

School Girls

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A Path Analysis to Identify the Psychosocial Factors Influencing Physical Activity and Bone Health in Middle-School Girls

Journal of Physical Activity and Health ◽

10.1123/jpah.6.5.606 ◽

2009 ◽

Vol 6 (5) ◽

pp. 606-616 ◽

Cited By ~ 11

Author(s):

Shreela V. Sharma ◽

Deanna M. Hoelscher ◽

Steven H. Kelder ◽

Pamela M. Diamond ◽

R. Sue Day ◽

...

Keyword(s):

Physical Activity ◽

Middle School ◽

Psychosocial Factors ◽

Bone Health ◽

Physical Activity Intervention ◽

Structural Equations ◽

Middle School Girls ◽

Sports Teams ◽

Effective Interventions ◽

School Girls

Background:The purpose of this study was to identify pathways used by psychosocial factors to influence physical activity and bone health in middle-school girls.Methods:Baseline data from the Incorporating More Physical Activity and Calcium in Teens (IMPACT) study collected in 2001 to 2003 were used. IMPACT was a 1 1/2 years nutrition and physical activity intervention study designed to improve bone density in 717 middle-school girls in Texas. Structural Equations Modeling was used to examine the interrelationships and identify the direct and indirect pathways used by various psychosocial and environmental factors to influence physical activity and bone health.Results:Results show that physical activity self-efficacy and social support (friend, family engagement, and encouragement in physical activity) had a significant direct and indirect influence on physical activity with participation in sports teams as the mediator. Participation in sports teams had a direct effect on both physical activity (β= 0.20, P < .05) and bone health and (β=0.13, P < .05).Conclusion:The current study identified several direct and indirect pathways that psychosocial factors use to influence physical activity and bone health among adolescent girls. These findings are critical for the development of effective interventions for promoting bone health in this population.

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