The physical demands of riding in National Hunt races

Eur J Appl Physiol Occup Physiol. 1995;70(1):66-9. doi: 10.1007/BF00601810.


Heart rate (fc) and post-competition blood lactate concentration ([La+]) were studied in seven male professional National Hunt jockeys over 30 races. The fc response for individual races followed a similar pattern for all subjects. The mean peak fc recorded during competition was 184 beats.min-1 (range 162-198 beats.min-1) with average fc during the races ranging from 136 to 188 beats.min-1. During consecutive races the recovery fc did not return to resting values. The mean [La+] was 7.1 mmol.l-1 (range 3.5-15.0 mmol.l-1). The conclusions of this study suggest that riding in National Hunt races is a physically demanding occupation. The muscular activity in this profession requires a high metabolic drive and produces a significant cardiorespiratory response.

Publication types

  • Clinical Trial

MeSH terms

  • Adult
  • Electrocardiography
  • Exercise / physiology*
  • Heart Rate / physiology
  • Hemodynamics / physiology
  • Humans
  • Lactates / blood
  • Lactic Acid
  • Male
  • Oxygen Consumption / physiology
  • Sports*


  • Lactates
  • Lactic Acid