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.
| Original language | English |
|---|---|
| Pages (from-to) | 235-242 |
| Number of pages | 8 |
| Journal | European Journal of Sport Science |
| Volume | 18 |
| Issue number | 2 |
| Early online date | 7 Dec 2017 |
| DOIs | |
| Publication status | Published - 2018 |
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Keywords
- athlete welfare
- doubly labelled water
- energy expenditure
- Jockey
- nutrition
- weight-making
ASJC Scopus subject areas
- Physical Therapy, Sports Therapy and Rehabilitation
- Orthopedics and Sports Medicine
Cite this
Energy expenditure in professional flat jockeys using doubly labelled water during the racing season : Implications for body weight management. / Wilson, George; Lucas, Daloni; Hambly, Catherine; Speakman, John R.; Morton, James P.; Close, Graeme L.
In: European Journal of Sport Science, Vol. 18, No. 2, 2018, p. 235-242.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Energy expenditure in professional flat jockeys using doubly labelled water during the racing season
T2 - Implications for body weight management
AU - Wilson, George
AU - Lucas, Daloni
AU - Hambly, Catherine
AU - Speakman, John R.
AU - Morton, James P.
AU - Close, Graeme L.
N1 - Acknowledgements The authors wish to thank Sheikh Mansour Festival Abu Dhabi and The Racing Foundation UK, for funding this research. Additionally, we would like to thank Dr Jerry Hill for permission to undertake testing in racecourse weighing room areas and Bronson Goodman for help in data collection and collation. Finally, we would like to thank all the jockeys for their time and participation in this study.
PY - 2018
Y1 - 2018
N2 - 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.
AB - 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.
KW - athlete welfare
KW - doubly labelled water
KW - energy expenditure
KW - Jockey
KW - nutrition
KW - weight-making
UR - http://www.scopus.com/inward/record.url?scp=85038019356&partnerID=8YFLogxK
U2 - 10.1080/17461391.2017.1406996
DO - 10.1080/17461391.2017.1406996
M3 - Article
VL - 18
SP - 235
EP - 242
JO - European Journal of Sport Science
JF - European Journal of Sport Science
SN - 1746-1391
IS - 2
ER -