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Even between-lap pacing despite high within-lap variation during mountain biking.

Louise Martin1, Anneliese Lambeth-Mansell, Liane Beretta-Azevedo

  • 1Institute of Sport and Exercise Science, University of Worcester, Worcester, UK.

International Journal of Sports Physiology and Performance
|February 24, 2012
PubMed
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Mountain bikers maintained an even pace across laps, but showed rapid velocity changes within each lap. These dynamic adjustments, beyond terrain, suggest self-regulated pacing during the race.

Area of Science:

  • Sports Science
  • Exercise Physiology
  • Biomechanics

Background:

  • Pacing strategies in endurance events are crucial for performance.
  • Limited research exists on high-resolution pacing during variable-terrain races.
  • Mountain biking presents unique challenges due to terrain and technical demands.

Purpose of the Study:

  • To analyze pacing profiles in a multi-lap mountain bike race.
  • To examine dynamic, high-resolution performance parameters.
  • To investigate pacing strategies over variable terrain.

Main Methods:

  • Six mountain bikers' performance was recorded using a GPS unit (1 Hz).
  • Parameters included velocity, distance, elevation, and heart rate.
  • Lap-by-lap analysis and 100m-averaged velocity plots were used.

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Main Results:

  • No significant differences in lap times or mean lap velocity were found across laps.
  • High oscillation in velocity within laps correlated with terrain.
  • Additional non-terrain-related velocity variations were observed.

Conclusions:

  • Mountain bikers employed an even overall pace strategy across laps.
  • Rapid intra-lap velocity adjustments occurred, partly due to terrain.
  • These dynamic changes may reflect self-paced exercise regulation.