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Seventy-year-old habitual volleyball players have larger tibial cross-sectional area and may be differentiated from their age-matched peers by the osteogenic index in dynamic performance

Rantalainen, T., Linnamo, V., Komi, P. V., Selänne, H. and Heinonen, A. 2010, Seventy-year-old habitual volleyball players have larger tibial cross-sectional area and may be differentiated from their age-matched peers by the osteogenic index in dynamic performance, European journal of applied physiology, vol. 109, no. 4, pp. 651-658, doi: 10.1007/s00421-010-1400-3.

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Title Seventy-year-old habitual volleyball players have larger tibial cross-sectional area and may be differentiated from their age-matched peers by the osteogenic index in dynamic performance
Author(s) Rantalainen, T.ORCID iD for Rantalainen, T. orcid.org/0000-0001-6977-4782
Linnamo, V.
Komi, P. V.
Selänne, H.
Heinonen, A.
Journal name European journal of applied physiology
Volume number 109
Issue number 4
Start page 651
End page 658
Total pages 8
Publisher Springer Berlin / Heidelberg
Place of publication Berlin, Germany
Publication date 2010-02-27
ISSN 1439-6319
1439-6327
Keyword(s) adults
elderly
aging
athletes
pQCT
DXA
Summary The osteogenicity of a given exercise may be estimated by calculating an osteogenic index (OI) consisting of magnitude and rate of strain. Volleyball involves repetitive jumping and requires high power output and thus may be expected to be beneficial to bone and performance. The purpose of the present study was to examine if habitual volleyball playing is reflected in OI. Ten elderly habitual volleyball players [age 69.9 (SD 4.4) years] and ten matched controls volunteered [age 69.7 (4.2) years] as subjects. Distal tibia (d), tibial mid-shaft (50) and femoral neck (F) bone characteristics were measured using pQCT and DXA. To estimate skeletal rigidity, cross-sectional area (ToA50), and compressive (BSId) and bending strength indices (SSImax50) were calculated. Maximal performance was assessed with eccentric ankle plantar flexion, isometric leg press and countermovement jump (CMJ). A fast Fourier transform (FFT) was calculated from the acceleration of the center of mass during the CMJ. Maximal acceleration (MAG) and mean magnitude frequency (MMF) were selected to represent the constituents of OI. OI was calculated as the sum of the products of magnitudes and corresponding frequencies. Volleyball players had 7% larger ToA50 and 37% higher power in CMJ, 15% higher MAG and 36% higher OI (P B 0.047) than the matched controls. No difference was observed in leg press, plantar flexion or the MMF (P C 0.646). In conclusion, habitual volleyball players may be differentiated from their matched peers by their dynamic jumping performance, and the differences are reflected in the magnitude but not rate of loading.
Language eng
DOI 10.1007/s00421-010-1400-3
Field of Research 119999 Medical and Health Sciences not elsewhere classified
Socio Economic Objective 970111 Expanding Knowledge in the Medical and Health Sciences
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2010, Springer-Verlag
Persistent URL http://hdl.handle.net/10536/DRO/DU:30036196

Document type: Journal Article
Collections: Faculty of Health
School of Exercise and Nutrition Sciences
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