Skeletal differences at the ulna and radius between pre-pubertal non-elite female gymnasts and non-gymnasts
Burt, Lauren A. Naughton, Geraldine A. Greene, David A. Ducher, Gaele
Burt, Lauren A.
Naughton, Geraldine A.
Greene, David A.
Ducher, Gaele
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Abstract
Objective: To compare skeletal parameters between the ulna and radius in pre-pubertal non-elite gymnasts and non-gymnasts.
Methods: Fifty-eight non-elite artistic gymnasts, aged 6-11 years, were compared with 28 non-gymnasts for bone mineral content (BMC), total and cortical bone area (ToA, CoA), trabecular and cortical volumetric density (TrD, CoD) and estimated bone strength (BSI and SSIp), obtained by pQCT at the distal and proximal forearm.
Results: Gymnasts had greater estimated bone strength than non-gymnasts at both sites of the forearm. At the distal forearm, the gymnastics-induced skeletal benefits were greater at the radius than ulna (Z-scores for BMC, TrD and BSI +0.40 to +0.61 SD, p<0.05 vs. +0.15 to +0.48 SD, NS). At the proximal forearm, the skeletal benefits were greater at the ulna than the radius (Z-scores for BMC, ToA, CoA and SSIp +0.59 to +0.82 SD, p<0.01 vs. +0.35 (ToA) and +0.43 SD (SSIp), p<0.01).
Conclusion: Skeletal benefits at the distal and proximal forearm emerged in young non-elite gymnasts. Benefits were larger when considering skeletal parameters at both the ulna and radius, than the radius alone as traditionally performed with pQCT. These findings suggest the ulna is worth investigating in future studies aiming to accurately quantify exercise-induced skeletal adaptations.
Keywords
Date
2011
Type
Journal article
Journal
The Journal of Musculoskeletal and Neuronal Interactions
Book
Volume
11
Issue
3
Page Range
227-233
Article Number
ACU Department
School of Behavioural and Health Sciences
Faculty of Health Sciences
Faculty of Health Sciences
Relation URI
DOI
Source URL
Event URL
Open Access Status
Open access
License
CC BY-NC-SA 4.0
File Access
Open