NDLI: Effects of plyometric exercise session on markers of bone turnover in boys and young men

Content Provider	Springer Nature Link
Author	Kish, Kimberly Mezil, Yasmeen Ward, Wendy E. Klentrou, Panagiota Falk, Bareket
Copyright Year	2015
Abstract	The acute exercise effects on bone markers in adults are unclear, while in children, there are no such data. To investigate the acute response of biochemical markers of bone turnover to a high-impact exercise session consisting of high-mechanical loading in boys and young men.Twelve boys (10.2 ± 0.4 years) and 14 men (22.0 ± 0.8 years) underwent a protocol of plyometric jumping exercises (total 144 jumps). Venous blood samples were collected pre-, 5 min, 1 and 24 h post-exercise, and analyzed for markers of bone formation and resorption: bone-specific alkaline phosphatase (bone ALP), osteoprotegerin (OPG), amino-terminal cross-linking telopeptide (NTx), and receptor activator of nuclear factor kappa beta ligand (RANKL).Boys had higher resting bone ALP (111.9 ± 29.2 vs. 30.6 ± 11.2 µg/L, p < 0.05) and NTx levels (49.8 ± 13.2 vs. 21.7 ± 5.9 nM BCE, p < 0.05) than men but no group differences were observed in resting OPG or RANKL. Following exercise (24 h), bone ALP and NTx increased in both boys and men (bone ALP: 24.1 vs. 9.9 %, respectively; NTx: 23.5 vs. −5 %, respectively), although the group-by-time interaction was not statistically significant. OPG increased significantly (p < 0.05) in both groups (5.7 and 16.1 %, respectively).Even one session of plyometric exercises appear to stimulate bone formation in boys and men, as reflected by the increase in bone ALP and OPG. The boys’ response appears more pronounced than the men’s, suggesting that during growth, cellular bone activities respond with greater magnitude to mechanical stimuli.
Starting Page	2115
Ending Page	2124
Page Count	10
File Format	PDF
ISSN	14396319
Journal	European Journal of Applied Physiology
Volume Number	115
Issue Number	10
e-ISSN	14396327
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2015-05-29
Publisher Place	Berlin/Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Bone formation Bone resorption Children Jumping Mechanical loading Human Physiology Occupational Medicine/Industrial Medicine Sports Medicine
Content Type	Text
Resource Type	Article
Subject	Orthopedics and Sports Medicine Physiology (medical) Public Health, Environmental and Occupational Health Sports Science

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