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ORIGINAL ARTICLE  BODY COMPOSITION, NUTRITION AND SUPPLEMENTATION 

The Journal of Sports Medicine and Physical Fitness 2021 November;61(11):1490-8

DOI: 10.23736/S0022-4707.21.11871-7

Copyright © 2021 EDIZIONI MINERVA MEDICA

lingua: Inglese

An investigation into the association of bone characteristics and body composition with stress fracture in athletes

Ian VARLEY 1 , Georgina STEBBINGS 2, Alun G. WILLIAMS 2, 3, Stephen DAY 4, Phil HENNIS 1, Reece SCOTT 1, Neval GRAZETTE 1, Adam J. HERBERT 5

1 Department of Sport Science, Nottingham Trent University, Nottingham, UK; 2 Department of Sport and Exercise Sciences, Manchester Metropolitan University, Manchester, UK; 3 Institute of Sport, Exercise and Health, University College London, London, UK; 4 University of Wolverhampton School of Medicine and Clinical Practice, Wolverhampton, UK; 5 Department of Sport and Exercise, Birmingham City University, Birmingham, UK



BACKGROUND: The aim of the study was to establish the bone and body composition characteristics of high-level athletes with and without a history of stress fracture injury.
METHODS: Overall, 279 high-level athletes (212 men, 67 women) (age 28.0±9.2 years; body mass 75.0±17.4 kg; height 1.78±0.10 m) and 112 non-athletic controls (60 women, 52 men) 36.2±15.0 years; 70.9±12.9 kg; 1.71±0.10 m) were assessed by DXA to establish their bone mineral density and content, body fat and lean mass. Athletes completed a questionnaire detailing their stress fracture history.
RESULTS: There were no differences in whole-body bone mineral density (men 1.41±0.12 g/cm2, women 1.19±0.09 g/cm2), bone mineral content (men 3709±626 g, women 2263±290 g), body fat (men 16.3±5.0%,women 23.0±4.6%) and lean mass (men 65.4±9.9 kg, women 38.7±3.6 kg) between athletes with a history of stress fracture (34 men, 16 women) and those without (176 men, 40 women).
CONCLUSIONS: DXA derived bone and body composition characteristics were not independent risk factors for stress fracture injury in high-level athletes. This study in a large cohort of high-level athletes provides normative bone and body composition values that can be used as a benchmark for researchers and applied practitioners.


KEY WORDS: Bone density; Body composition; Stress fractures

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