Abstract:
OBJECTIVES:We aimed to clarify whether a short-term whole body vibration training has a beneficial effect on bone mass and structure in elderly men and women. DESIGN:Randomised controlled trial. METHODS:A total of 49 non-institutionalised elderly (20 men and 29 women) volunteered to participate in the study. Participants who met the inclusion criteria were randomly assigned to one of the study groups (whole body vibration or control). A total of 24 elderly trained squat positioned on a vibration platform 3 times per week for 11 weeks. Bone-related variables were assessed by dual-energy X-ray absorptiometry and peripheral quantitative computed tomography. Two-way repeated measures one-way analysis of variance (group by time) was used to determine the effects of the intervention on the bone-related variables and also to determinate the changes within group throughout the intervention period. Analysis of covariance was used to test the differences between groups for bone-related variables in pre- and post-training assessments and in the percentage of change between groups. All analysis were carried out including age, height, subtotal lean mass and daily calcium intake as covariates. RESULTS:11 weeks of whole body vibration training led to no changes in none of the bone mineral content and bone mineral density parameters measured by dual-energy X-ray absorptiometry through the skeleton. At the tibia, total, trabecular and cortical volumetric bone mineral density decreased significantly in the whole body vibration group (all P<0.05). CONCLUSIONS:A short-term whole body vibration therapy is not enough to cause any changes on bone mineral content or bone mineral density and it only produces a slight variation on bone structure among elderly people.
journal_name
J Sci Med Sportjournal_title
Journal of science and medicine in sportauthors
Gómez-Cabello A,González-Agüero A,Morales S,Ara I,Casajús JA,Vicente-Rodríguez Gdoi
10.1016/j.jsams.2013.04.020subject
Has Abstractpub_date
2014-03-01 00:00:00pages
160-4issue
2eissn
1440-2440issn
1878-1861pii
S1440-2440(13)00107-2journal_volume
17pub_type
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