Home > Riviste > The Journal of Sports Medicine and Physical Fitness > Fascicoli precedenti > The Journal of Sports Medicine and Physical Fitness 2011 September;51(3) > The Journal of Sports Medicine and Physical Fitness 2011 September;51(3):515-24

ULTIMO FASCICOLO
 

ARTICLE TOOLS

Estratti

THE JOURNAL OF SPORTS MEDICINE AND PHYSICAL FITNESS

Rivista di Medicina, Traumatologia e Psicologia dello Sport


Indexed/Abstracted in: Chemical Abstracts, CINAHL, Current Contents/Clinical Medicine, EMBASE, PubMed/MEDLINE, Science Citation Index Expanded (SciSearch), Scopus
Impact Factor 1,215


eTOC

 

ORIGINAL ARTICLES  OTHER AREAS
(Biochemistry, Immunology, Kinanthropometry, Neurology, Neurophysiology, Ophtalmology, Pharmacology, Phlebology, etc.)


The Journal of Sports Medicine and Physical Fitness 2011 September;51(3):515-24

Copyright © 2011 EDIZIONI MINERVA MEDICA

lingua: Inglese

Markers of bone turnover across a competitive season in female athletes: a preliminary investigation

Morgan A. L. 1, Weiss Jarrett J. 2

1 Kinesiology Division, School of HMSLS, Bowling Green State University,, Bowling Green, OH, USA; 2 Orthopedic Physician Associates, Seattle, WA


PDF  


AIM: Higher levels of bone formation have been observed in athletes performing high impact exercise when compared to non-impact exercisers. This study was designed to determine if bone formation and resorption fluctuate across a competitive season (4-6 months) in females training at different levels of mechanical stress.
METHODS: Markers of bone formation (osteocalcin [OC]; bone specific alkaline phosphatase [BAP]) and resorption (cross-linked N-telopeptides [NTx]) were measured in serum at pre-, mid- and post-season in 33 female athletes and controls (19.6±1.4 yr). Participants were divided into impact groups of high (HIGH, basketball, N.=6), medium (MED, soccer, N.=12), and non (NON, swimmers, N.=11), and compared to sedentary controls (CON, N.=4). Bone mineral density (BMD) and bone mineral content (BMC) were assessed by DXA in a subset of each group.
RESULTS:BAP was greater in HIGH and MED (31.82±12.21 and 33.09±6.78 U/L) than both NON and CON (23.96±5.71 and 16.66±2.07 U/L); no significant changes over time were noted. Hip BMD was greater in HIGH (1.17±0.14 g×cm-2) than NON and CON (0.98±0.09 and 1.02±0.04 g×cm-2, respectively), while hip BMC was greater in HIGH and MED (41.76±3.06 and 38.56 ± 3.94 g) than NON and CON (32.37 ±3.5 and 30.51 ± 5.91).
CONCLUSION:Women involved in HIGH and MED impact activities have higher levels of bone formation throughout a season than those involved in non-impact activities which may have long term implications for bone health.

inizio pagina

Publication History

Per citare questo articolo

Corresponding author e-mail

amorgan@bgsu.edu