Bone metabolism in elite male rowers: adaptation to volume-extended training

We examined the effect of 6-month volume-extended training on bone metabolism in elite male rowers. Twelve elite male rowers (20.8+/-3.0 years; 192.9+/-4.7 cm; 91.9+/-5.3 kg; body fat 10.1+/-2.3%; VO2max 6.2+/-0.5 l min(-1)) participated in this study. Bone biochemical markers, hormones, bone minera...

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Published in:European journal of applied physiology 2006-05, Vol.97 (1), p.127-132
Main Authors: Jürimäe, Jaak, Purge, Priit, Jürimäe, Toivo, von Duvillard, Serge P
Format: Article
Language:English
Subjects:
Adaptation, Physiological - physiology
Adiponectin - metabolism
Bone and Bones - metabolism
Bone Density - physiology
Calcification, Physiologic - physiology
Hormones - metabolism
Humans
Insulin-Like Growth Factor I - metabolism
Male
Physical Exertion - physiology
Physical Fitness - physiology
Sports - physiology
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Summary:We examined the effect of 6-month volume-extended training on bone metabolism in elite male rowers. Twelve elite male rowers (20.8+/-3.0 years; 192.9+/-4.7 cm; 91.9+/-5.3 kg; body fat 10.1+/-2.3%; VO2max 6.2+/-0.5 l min(-1)) participated in this study. Bone biochemical markers, hormones, bone mineral content (BMC), and bone mineral density (BMD) were assessed before and after training. Average weekly training volume was significantly higher (P or =0.05). In addition, osteocalcin was related to IGF-1 (r>0.58; P0.59; P< or =0.055) before and after training. In summary, heavy training had a moderately favorable effect on BMD. Bone tissue at specific skeleton sites is sensitive to changes in training volume even in athletes with already high BMD values. Changes in BMD and bone formation may be caused by changes in specific hormones such as IGF-1 and adiponectin in male athletes.
ISSN:1439-6319
1439-6327
DOI:10.1007/s00421-006-0158-0