| Effect of high-impact aerobics and strength training on BMD in young women aged 20-35 years. | |
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MedLine Citation:
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PMID: 21165807 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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To evaluate the effects of a 12-month exercise intervention using either high-impact step aerobic exercise or moderate-intensity strength training on areal bone mineral density (aBMD) we studied 51 untrained women, aged 20-35 years, for this study. Whole body and heel and wrist aBMD were measured by dual-energy X-ray absorptiometry (DXA, Hologic or PIXI Lunar). Subjects were randomly assigned to: impact-loaded step aerobic exercise (SA, n=15), moderate-intensity lower body strength training (ST, n=16) or non-exercise control (CON, n=20). Data analysis only included those who completed 95% of each training routine and attended at least 80% of all sessions. Group differences in aBMD, leg press strength and urinary cross-link deoxypridinoline (μDPD) were analysed using analysis of variance. After a 12-month intervention, the SA elicited an increase in aBMD of the heel (4.4%, p<0.05) and leg press strength (15%, p<0.05), relative to baseline. Meanwhile, the ST showed an increase in leg press strength (48%, p<0.05) with no significant increase in aBMD at any measured site. Similar and unchanged μDPD was observed in all 3 groups at baseline, 6 and 12 months. In conclusion, a 12-month high-impact step aerobic exercise resulted in a significant increase in the heel aBMD in untrained young women, who complied with the exercise regimen. A moderate intensity strength training intervention of similar duration had no effect on aBMD although leg strength increased significantly. |
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Authors:
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M T C Liang; W Braun; S L Bassin; D Dutto; A Pontello; N D Wong; T W Spalding; S B Arnaud |
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Publication Detail:
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Type: Comparative Study; Journal Article; Randomized Controlled Trial; Research Support, N.I.H., Extramural; Research Support, U.S. Gov't, Non-P.H.S. Date: 2010-12-16 |
Journal Detail:
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Title: International journal of sports medicine Volume: 32 ISSN: 1439-3964 ISO Abbreviation: Int J Sports Med Publication Date: 2011 Feb |
Date Detail:
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Created Date: 2011-01-31 Completed Date: 2011-05-04 Revised Date: 2011-06-15 |
Medline Journal Info:
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Nlm Unique ID: 8008349 Medline TA: Int J Sports Med Country: Germany |
Other Details:
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Languages: eng Pagination: 100-8 Citation Subset: IM |
Copyright Information:
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© Georg Thieme Verlag KG Stuttgart · New York. |
Affiliation:
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California State Polytechnic University Pomona, United States. mtcliang@csupomona.edu |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Absorptiometry, Photon Adult Amino Acids / urine Biological Markers / urine Body Height Body Weight Bone Density / physiology* Calcium, Dietary / administration & dosage Creatinine / urine Diet Records Exercise / physiology* Female Humans Muscle Strength / physiology Physical Fitness Premenopause Resistance Training* Weight-Bearing / physiology Young Adult |
| Grant Support | |
ID/Acronym/Agency:
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5 S0 GM053933-06/GM/NIGMS NIH HHS; 5M01RR00827-29/RR/NCRR NIH HHS |
| Chemical | |
Reg. No./Substance:
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0/Amino Acids; 0/Biological Markers; 0/Calcium, Dietary; 60-27-5/Creatinine; 90032-33-0/deoxypyridinoline |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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