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Pedometers and aerobic capacity: evaluating an elementary after-school running program.

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After-school programs can improve children's aerobic fitness. A 12-week pedometer program boosted physical activity (PA) in elementary students, but step counts did not predict fitness gains.

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Area of Science:

  • Pediatric Exercise Science
  • Public Health Nutrition
  • Youth Fitness Interventions

Background:

  • Childhood obesity is a significant public health issue in the U.S., affecting 1 in 6 children.
  • Reduced physical activity (PA) is a key contributor to childhood obesity.
  • Academic pressures often limit opportunities for physical activity during the school day.

Purpose of the Study:

  • To evaluate the impact of a 12-week after-school pedometer program on elementary students' aerobic capacity.
  • To investigate the correlation between daily step counts and improvements in aerobic capacity.

Main Methods:

  • A 12-week after-school program focused on physical activity using pedometers.
  • Participants: 24 elementary school-aged children (9.5 ± 0.9 years).
  • Aerobic capacity was assessed using the 20-meter PACER test (pre- and post-intervention).

Main Results:

  • Significant improvements in aerobic capacity were observed after the 12-week program (pretest: 21.0 laps vs. posttest: 25.2 laps, P ≤ 0.001).
  • No significant correlation was found between individual step counts and the change in PACER test performance (r = 0.318, P = 0.130).

Conclusions:

  • The after-school program effectively enhanced aerobic capacity in elementary school children.
  • Pedometer-measured step count increases were not a significant predictor of aerobic capacity improvements in this study.