Energy expenditure and distance travelled by polocrosse horses during competition

Buzas, A. M., Cawdell-Smith, A. J., Dryden, G. McL. and Bryden, W. L. (2008). Energy expenditure and distance travelled by polocrosse horses during competition. In: Asia Pacific Journal of Clinical Nutrition. Proceedings of the Nutrition Society of Australia. 32nd NSA Annual Scientific Meeting, Adelaide, Australia, (S125-S125). 30 Nov.-3 Dec. 2008.


Author Buzas, A. M.
Cawdell-Smith, A. J.
Dryden, G. McL.
Bryden, W. L.
Title of paper Energy expenditure and distance travelled by polocrosse horses during competition
Conference name 32nd NSA Annual Scientific Meeting
Conference location Adelaide, Australia
Conference dates 30 Nov.-3 Dec. 2008
Proceedings title Asia Pacific Journal of Clinical Nutrition. Proceedings of the Nutrition Society of Australia   Check publisher's open access policy
Place of Publication Clayton, Vic., Australia
Publisher Blackwell
Publication Year 2008
ISSN 0964-7058
1440-6047
Volume 17
Issue Suppl. 3
Start page S125
End page S125
Total pages 1
Language eng
Formatted Abstract/Summary
Background – Polocrosse is an equine sport developed in Australia that combines aspects of polo and lacrosse. It is a game of four periods (chukkas) of approximately 8 minutes each. A team consists of two groups of three horses, which play in either chukkas 1 and 3, or 2 and 4. Horses play in Position 1 (attack), Position 2 (centre) or Position 3 (defence). The game imposes constantly changing exercise intensities but these have not been measured.
Objectives – The objectives of this study were to use heart rate responses to quantify energy expenditure of horses during a polocrosse game and to calculate the distance travelled and velocities reached.
Methodology – Measurements of heart rate, velocity and distance travelled were made during competitive polocrosse games with six polocrosse horses. Data were recorded for two chukkas and the intervening recovery period, using an integrated heart rate monitor and global positioning system (E-TRAKKA; Equitronics Pty Ltd., Perth). Energy expenditure was calculated from a relationship between heart rate and Vo2 (Coenen 2005).
Outcome – During play, the maximum heart rate recorded was 224 bpm (sustained for 6 sec.); mean heart rates varied from 119 to 150 bpm. There was no difference in mean heart rate between the 2 chukkas played by each horse. The horses in this study used an average of 0.55 ± 0.124 MJ NE/min. (mean ± SE), with one horse using 22 MJ NE in a game of two chukkas and the intervening recovery period (overall mean 5.3 ± 2.70 MJ). Energy expenditure was similar in the first (0.8 MJ NE/min.) and the second (0.7 MJ NE/min.) chukka played. Horses playing in Position 1 tended to have higher (P<0.1) rates of energy expenditure (0.63 MJ NE/min) than horses
playing in Position 2 (0.48 MJ/min.) or Position 3 (0.54 MJ/min.). The total distances recorded were 5.3 ± 1.3, 4.8 ± 1.1 and 4.1 ± 1.2 km for horses in positions 1, 2 and 3 respectively. Multiple regression analysis for velocity showed that higher average velocities were achieved by horses playing in position 1 with a maximum speed of over 42 km/hr.
Conclusion – Polocrosse imposes considerable energy demands on the horse and horses playing in position 1 exercise with the greatest intensity and travel the greatest distance.
Subjects 0707 Veterinary Sciences
Keyword Animal science
Heart rate
Horses
Polocrosse horses
Q-Index Code EX
Q-Index Status Provisional Code
Institutional Status Unknown
Additional Notes P29

Document type: Conference Paper
Collection: School of Agriculture and Food Sciences
 
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Created: Fri, 16 Apr 2010, 14:03:15 EST by Ms May Balasaize on behalf of Faculty Of Nat Resources, Agric & Veterinary Sc