Association between long-term exercise loading and lumbar spine trabecular bone score (TBS) in different exercise loading groups
Heiniö, L., Nikander, R., & Sievänen, H. (2015). Association between long-term exercise loading and lumbar spine trabecular bone score (TBS) in different exercise loading groups. Journal of Musculoskeletal Neuronal Interactions, 15 (3), 279-285. Retrieved from http://www.ismni.org/jmni/pdf/61/06HEINIO.pdf
Published inJournal of Musculoskeletal Neuronal Interactions
© the Authors, 2015. This is an open access article published by The International Society of Musculoskeletal and Neuronal Interactions.
Objective: To examine whether different exercise loading is associated with lumbar vertebral texture as assessed with Trabecular Bone Score (TBS). Methods: Data from 88 Finnish female athletes and 19 habitually active women (reference group) were analyzed. Participants’mean age was 24.3 years(range 17-40 years).Athletes were divided into five specific exercise loading groups according to sport-specific training history: high-impact (triple jumpers and high jumpers), odd-impact (soccer players and squash players), high-magnitude (power lifters), repetitive impact (endurance runners), and repetitive non-impact (swimmers). TBS-values were determined from lumbar vertebral L1-L4 DXA images. Body weight and height, fat-%, lean mass, isometric maximal leg press force, dynamic peak jumping force and lumbar BMD were also measured. Results: Endurance runners’mean TBS value differed significantly from all other groups being about 6% lower than in the reference group. After controlling for body height, isometric leg press force and fat-%, the variables found consistently explaining TBS, the observed between-group difference remained significant (B=-0.072, p=0.020). After controlling for BMD, the difference persisted (B=-0.065, p=0.016). There were no other significant adjusted between-group differences. Conclusion: Exercise loading history comprising several repeated moderate impactsis associated with somewhat lower TBS, which may indicate specific lumbar microarchitecture in endurance runners. ...
PublisherThe International Society of Musculoskeletal and Neuronal Interactions
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