Facial reconstruction

Search LJMU Research Online

Browse Repository | Browse E-Theses

Energy expenditure in professional flat jockeys using doubly labelled water during the racing season: Implications for body weight management.

Wilson, G, Lucas, D, Hambly, C, Speakman, JR, Morton, JP and Close, GL (2017) Energy expenditure in professional flat jockeys using doubly labelled water during the racing season: Implications for body weight management. European Journal of Sport Science, 18 (2). pp. 235-242. ISSN 1536-7290

[img] Text
Energy expenditure in professional flat jockeys using doubly-labelled water during the racing season implications for body weight management..pdf - Accepted Version
Restricted to Repository staff only until 7 June 2019.

Download (671kB)

Abstract

To formulate individualized dietary strategies for jockeys, it is vital that energy requirements are quantified. We measured total energy expenditure (TEE) over two separate weeks in spring and summer using doubly labelled water in a group of male flat jockeys (n = 8, 36.9 ± 5.7 years, 164 ± 8 cm, 54.6 ± 2.5 kg). Total energy intake (TEI) was self-recorded, as were all riding and structured exercise activity. Mean daily TEE was 10.83 (±2.3) and 10.66 (±1.76) MJ, (p = .61) respectively. Self-reported TEI were 6.03 (±1.7) and 5.37 (±1.1) MJ (p = .40), respectively, and were significantly lower than TEE (p = .01). Mean race rides were 17 (±6) and 13 (±3; p = 0.37) and horses ridden at morning exercise were 8 (±6) and 7 (±4; p = .77) respectively. Additional structured exercise was 76.25 (±95.1) and 52.5 (±80.9) min per week (p = .35), respectively. At the individual level, TEE was related to body mass and the level of non-racing physical activity, but not riding. Physical activity levels for TEE were 1.76 (±0.37) and 1.69 (±0.27; p = .59) and appear modest when compared with other athletes, and similar to age-matched non-athletes, suggesting that conventional sport-specific nutritional recommendations do not appear applicable. The large discrepancy between TEE and TEI suggests significant under reporting of dietary intake. These data now provide an appropriate framework from which to formulate jockey nutritional guidelines to promote the ability to achieve the daily weight target and improve athlete welfare.

Item Type: Article
Uncontrolled Keywords: 1106 Human Movement And Sports Science, 0913 Mechanical Engineering
Subjects: R Medicine > RC Internal medicine > RC1200 Sports Medicine
Divisions: Sport & Exercise Sciences
Publisher: Taylor & Francis
Related URLs:
Date Deposited: 05 Apr 2018 11:47
Last Modified: 17 Sep 2018 15:01
DOI or Identification number: 10.1080/17461391.2017.1406996
URI: http://researchonline.ljmu.ac.uk/id/eprint/8420

Actions (login required)

View Item View Item