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Table 1 The duration of physical activity at baseline and at follow-up

From: A one-year exercise intervention program in pre-pubertal girls does not influence hip structure

  Cases Controls
Organized physical activity (hours/week)   
Baseline before intervention   
   Outside the school 0.7 ± 1.2 1.3 ± 1.6
Baseline after intervention   
   School curriculum 3.3 1.0 **
   Outside the school 0.7 ± 1.2 1.3 ± 1.6
   Total physical activity 4.0 ± 1.2 2.3 ± 1.6 **
Follow-up   
   School curriculum 3.3 1.0 **
   Outside the school 1.1 ± 1.3 1.9 ± 1.9 *
   Total physical activity 4.4 ± 1.3 2.9 ± 1.9 **
  1. Data presented as mean ± SD. *P < 0.05, **P < 0.001