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Running performance in middle-school runners.

E R Malison1, D M Plank, J D Brown

  • 1Human Performance Laboratory, Ball State University, Muncie, IN 47306, USA.

The Journal of Sports Medicine and Physical Fitness
|March 11, 2005
PubMed
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Young male runners

Area of Science:

  • Exercise Physiology
  • Sports Science
  • Pediatric Sports Medicine

Background:

  • Understanding physiological determinants of running performance is crucial for training young athletes.
  • Aerobic and anaerobic capacities are key factors in middle-distance running.
  • Limited research exists on these specific relationships in adolescent male runners.

Purpose of the Study:

  • To investigate the correlation between 3-km run time and measures of aerobic and anaerobic fitness in young male runners.
  • To identify key physiological predictors of middle-distance running performance in this demographic.

Main Methods:

  • Nine male runners (13.4 ± 0.6 years) underwent anthropometric measurements and treadmill testing for running economy and maximal oxygen uptake (VO2max).
  • Participants completed two 55-m sprints followed by a 3-km run on an indoor track.

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  • Post-run blood lactate levels and fractional utilization of VO2max were measured and correlated with 3-km run time.

    • Main Results:

    • Mean VO2max was 61.7 ± 4.4 ml·kg−1·min−1.
    • Average 3-km run time was 13.27 ± 0.97 minutes, representing 90.1 ± 7.2% of VO2max.
    • Post-run blood lactate levels showed a significant negative correlation (r = -0.73, p = 0.02) with 3-km run time.

    Conclusions:

    • High percentage of VO2max utilization during the 3-km run is a significant factor in performance for young male runners.
    • The ability to tolerate elevated blood lactate levels is also a critical determinant of running speed in this age group.
    • These findings highlight the importance of both aerobic capacity and lactate tolerance in optimizing training for adolescent middle-distance runners.