The physical demands of riding in National Hunt races |
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Authors: | E A Trowbridge J V Cotterill C E Crofts |
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Institution: | (1) Sport and Exercise Science Unit, Department of Medical Physics and Clinical Engineering, The University of Sheffield, Royal Hallamshire Hospital, Glossop Road, S10 2JF Sheffield, UK |
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Abstract: | Heart rate (f
c) and post-competition blood lactate concentration (La+]) were studied in seven male professional National Hunt jockeys over 30 races. Thef
c response for individual races followed a similar pattern for all subjects. The mean peakf
c recorded during competition was 184 beats·min–1 (range 162–198 beats·min–1) with averagef
c during the races ranging from 136 to 188 beats·min–1. During consecutive races the recoveryf
c 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. |
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Keywords: | National Hunt races Jockeys Heart rate Blood lactate concentration |
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