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Short-term bone biochemical response to a single bout of high-impact exercise

Rantalainen, Timo, Heinonen, Ari, Linnamo, Vesa, Komi, Paavo V., Takala, Timo E. S. and Kainulainen, Heikki 2009, Short-term bone biochemical response to a single bout of high-impact exercise, Journal of sports science and medicine, vol. 8, no. 4, pp. 553-559.

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Title Short-term bone biochemical response to a single bout of high-impact exercise
Author(s) Rantalainen, TimoORCID iD for Rantalainen, Timo orcid.org/0000-0001-6977-4782
Heinonen, Ari
Linnamo, Vesa
Komi, Paavo V.
Takala, Timo E. S.
Kainulainen, Heikki
Journal name Journal of sports science and medicine
Volume number 8
Issue number 4
Start page 553
End page 559
Total pages 7
Publisher Uludag University
Place of publication Bursa, Turkey
Publication date 2009-12-01
ISSN 1303-2968
Keyword(s) Bone biochemical marker
jumping
bone turnover
osteogenic index
Summary Bone response to a single bout of exercise can be observed with biochemical markers of bone formation and resorption. The purpose of this study was to examine the response of bone biochemical markers to a single bout of exhaustive high-impact exercise. 15 physically active young subjects volunteered to participate. The subjects performed continuous bilateral jumping with the ankle plantarflexors at 65 % of maximal ground reaction force (GRF) until exhaustion. Loading was characterized by analyzing the GRF recorded for the duration of the exercise. Venous blood samples were taken at baseline, immediately after, 2h and on day 1 and day 2 after the exercise. Procollagen type I amino terminal propeptide (P1NP, marker of bone formation) and carboxyterminal crosslinked telopeptide (CTx, marker of bone resorption) were analyzed from the blood samples. CTx increased significantly (32 %, p = 0.015) two days after the exercise and there was a tendensy towards increase seen in P1NP (p = 0.053) one day after the exercise. A significant positive correlation (r = 0.49 to 0.69, p ≤ 0.038) was observed between change in P1NP from baseline to day 1 and exercise variables (maximal slope of acceleration, body weight (BW) adjusted maximal GRF, BW adjusted GRF exercise intensity and osteogenic index). Based on the two biochemical bone turnover markers, it can be concluded that bone turnover is increased in response to a very
Notes Reproduced with the kind permission of the copyright owner.
Language eng
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 ©2009, Uludag University
Free to Read? Yes
Persistent URL http://hdl.handle.net/10536/DRO/DU:30036194

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Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.