Abstract
Age-related changes in body composition are well-documented with a decrease in lean
body mass and a redistribution of body fat generally observed. Resistance training
alone has been shown to have positive effects on body composition, however, these
benefits may be enhanced by the addition of a vibration stimulus.
Objective
The purpose of this study was to determine the effects of 8 months of resistance training
with and without whole-body vibration (WBV) on body composition in sedentary postmenopausal
women.
Methods
Fifty-five women were assigned to resistance only (RG, n = 22), vibration plus resistance (VR, n = 21) or non-exercising control (CG, n = 12) groups. Resistance training (3 sets 10 repetitions 80% strength) was performed
using isotonic weight training equipment and whole-body vibration was done with the
use of the power plate (Northbrooke, IL) vibration platform for three times per week
for 8 months. Total and regional body composition was assessed from the total body
DXA scans at baseline (pre) and after 8 months (post) of training.
Results
In the VR group, total % body fat decreased from pre- to post-time points (p < 0.05), whereas, the CG group had a significant increase in total % body fat (p < 0.05). Both training groups exhibited significant increases in bone free lean tissue
mass for the total body, arm and trunk regions from pre to post (p < 0.05). CG did not show any changes in lean tissue.
Conclusion
In older women, resistance training alone and with whole-body vibration resulted in
positive body composition changes by increasing lean tissue. However, only the combination
of resistance training and whole-body vibration was effective for decreasing percent
body fat.
Keywords
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Article info
Publication history
Published online: April 09, 2009
Accepted:
March 16,
2009
Received in revised form:
March 11,
2009
Received:
February 11,
2009
Identification
Copyright
© 2009 Elsevier Ireland Ltd. Published by Elsevier Inc. All rights reserved.
