Journal article
Bone density and body composition in newly-licensed, professional jockeys
- Abstract:
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Purpose/Introduction
Describe bone mineral density (BMD) and body composition in entry-level male and female, flat and jump jockeys in Great Britain.
Methods
Data was collected on jockeys applying for a professional jockey license between 2013 and 2015. Areal BMD at the spine, Femoral-Neck (FN), total hip and body composition were assessed by Dual-energy X-ray absorptiometry (DXA) scan. We examined differences between BMD and body composition by gender and race type (flat or jump). Volumetric bone mineral apparent density (BMAD) of the spine and FN was also calculated to account for groups differences in bone size.
Results
Seventy-nine male flat jockeys (age 18.5 ± 1.9, BMI 19.0 +/- 1.4), 69 male jump (age 20.7 ± 2.0, BMI 20.6 +/-1.3) and 37 female flat jockeys (age 19.3 ± 2.0, BMI 20.8 +/- 1.7). Spine BMD Z-scores ≤-2 for male flat, male jump and female flat jockeys were 29%, 13% and 2.7%, respectively. Spine BMD was lower in male than female flat jockeys (p<0.001). All BMD scores were lower in male flat compared to male jump jockeys (p<0.001). Body fat % (BF %) was lower in male flat jockeys compared to male jump and female flat jockeys (p<0.05). Lean mass index (LMI) was lower in male flat compared to male jump jockeys (p<0.001).
Conclusions
Male flat jockeys had a significantly lower BMD, LMI and BF% compared to jump jockey and female flat jockeys. Male flat jockeys had lower spine BMD scores than females. Individual bone maturation may influence these findings. Further investigation into the relevance of low BMD and altered body composition on jockey health is required.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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(Preview, Version of record, pdf, 638.2KB, Terms of use)
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- Publisher copy:
- 10.1007/s00198-017-4086-0
Authors
- Publisher:
- Springer
- Journal:
- Osteoporosis International More from this journal
- Publication date:
- 2017-06-01
- Acceptance date:
- 2017-05-08
- DOI:
- EISSN:
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1433-2965
- ISSN:
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0937-941X
- Keywords:
- Pubs id:
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pubs:697088
- UUID:
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uuid:96071489-7837-432d-935d-bc15148db1fc
- Local pid:
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pubs:697088
- Source identifiers:
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697088
- Deposit date:
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2017-05-25
- ARK identifier:
Terms of use
- Copyright holder:
- Sanchez et al
- Copyright date:
- 2017
- Notes:
- © The Author(s) 2017 This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
- Licence:
- CC Attribution (CC BY)
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