title: Effect of Physical Activity Interventions for Girls on Objectively Measured Outcomes: A Systematic Review of Randomized Controlled Trials.
abstract: Most girls are not meeting physical activity (PA) guidelines, and 30% are overweight or obese. The purpose of this systematic review was to evaluate the evidence for PA intervention effects on accelerometer-measured PA, body mass index (BMI), and percent body fat (% BF) among girls.
  
  
  
  The Cumulative Index of Nursing and Allied Health Literature, PubMed, PsychInfo, and SportDISCUS databases were searched for randomized controlled trials published from 1985-2014. Studies with a PA intervention and outcomes of accelerometer-measured PA, BMI, or % BF were included.
  
  
  
  Fifteen studies were reviewed. PA, BMI, and % BF were measured in 5, 15, and 10 studies, respectively. Effect sizes (ES) were highly variable. In one intervention, PA increased (ES = -0.17 to 0.08); in two interventions, BMI was reduced (ES = -0.11 to 0.62); and in five interventions, % BF was lowered (ES = 0.12 to 0.93).
  
  
  
  Future research should involve preadolescent girls, improve methods for handling missing data, include objective measures of PA, and increase intervention attendance rates.
authors.forename: Vicki R
authors.initials: VR
authors.lastname: Voskuil
authors.forename: Dawn A
authors.initials: DA
authors.lastname: Frambes
authors.forename: Lorraine B
authors.initials: LB
authors.lastname: Robbins
mesh_terms: D015992:Body Mass Index; D002648:Child; D015444:Exercise; D005260:Female; D006293:Health Promotion; D006801:Humans; D063766:Pediatric Obesity / Q000517:prevention & control*; D016032:Randomized Controlled Trials as Topic; D040242:Risk Reduction Behavior
keywords: Girls; interventions; physical activity; systematic review; weight