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dc.contributor.authorMcVeigh, Joanne
dc.contributor.authorMeiring, R.
dc.contributor.authorCimato, A.
dc.contributor.authorMicklesfield, L.
dc.contributor.authorOosthuyse, T.
dc.date.accessioned2017-01-30T11:41:28Z
dc.date.available2017-01-30T11:41:28Z
dc.date.created2016-10-24T19:30:20Z
dc.date.issued2014
dc.identifier.citationMcVeigh, J. and Meiring, R. and Cimato, A. and Micklesfield, L. and Oosthuyse, T. 2014. Radial bone size and strength indices in male road cyclists, mountain bikers and controls. European Journal of Sport Science. 15 (4): pp. 332-340.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/14100
dc.identifier.doi10.1080/17461391.2014.933881
dc.description.abstract

Mountain biking (MB), unlike road cycling (RC) involves exposure to ground impact bone strain and requires upper-body muscle forces to maintain stability over uneven terrain and therefore may have differential effects on radial bone structure and strength. This study aimed to compare serum bone turnover marker concentration, 1-repetition maximum muscle strength and the radial proximal (diaphysis) and distal (metaphysis) bone structure [bone mineral content, total and cortical area (CoA), density and thickness, diameter and circumference], strength strain indices and muscle cross-sectional area (MCSA) using peripheral quantitative computed tomography (pQCT) between 30 male cyclists (18–34 years) MB (n = 10), RC (n = 10) and non-athletes controls (CON, n = 10). Differences were assessed by ANOVA and an ANCOVA (adjusting for body mass and height) where appropriate. MB radii were characterised by significantly stronger (14–16%), denser (9–27%) and larger (10%) metaphyses and stronger (22–23%) and larger (11–13%) diaphyses compared to RC and CON. RC had significantly 7% higher strength indices and 4% greater CoA and thickness than CON at the diaphysis, with no differences for other bone measurements. Serum C-terminal telopeptides of type-1 collagen concentration (bone resorption marker) was higher in RC than MB (p < 0.05) and above the age-reference range. MCSA and strength were greater in MB than RC (p < 0.05). Muscle forces generated during RC appear to produce an osteogenic stimulus to increase radial bone strength indices with minimal improvement in bone structure. However greater resorptive activity in RC suggests inadequate loading to support bone maintenance. In conclusion, bone loading, muscle size and strength of MB are superior to RC.

dc.publisherTaylor and Francis Group
dc.titleRadial bone size and strength indices in male road cyclists, mountain bikers and controls
dc.typeJournal Article
dcterms.source.startPage1
dcterms.source.endPage9
dcterms.source.issn1746-1391
dcterms.source.titleEuropean Journal of Sport Science
curtin.departmentSchool of Occupational Therapy and Social Work
curtin.accessStatusFulltext not available


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