Effects of whole body vibration on postural steadiness in an older population. J Sci Med Sport

Human Performance Laboratory, School of Leisure, Sport and Tourism, University of Technology, Sydney, Australia.
Journal of science and medicine in sport / Sports Medicine Australia 06/2008; 12(4):440-4. DOI: 10.1016/j.jsams.2008.02.002
Source: PubMed

ABSTRACT The aim of this study was to investigate the effects of vibration exercise on postural steadiness performance in a healthy, older population. Forty-three healthy, older participants (23 men and 20 women, aged 73.5+/-4.5 yr) were randomly assigned to either a vibration group (VIB), an exercise without vibration group (EX) or a control group (CONT). The VIB and EX groups undertook static and dynamic bodyweight exercises three times per week for eight weeks. Static balance was assessed using a one-legged postural steadiness (OLPS) test. This test was performed prior to and immediately after the training period. OLPS improved significantly for the VIB intervention after eight weeks training (p<0.05) compared to the EX and CONT groups. The improvements in OLPS were significantly affected by the baseline values, with the largest changes evident for VIB participants with a poorer initial score (p<0.01). Vibration exercise can contribute to improved static one-legged balance in a healthy, older population. As improvements in OLPS were related to baseline values, vibration exercise as an intervention would appear to serve the most benefit for those that exhibit diminished postural control.

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    • "Significant difference in amount of change in TUG compared to CON WBV/EX: Significant difference in amount of change in STS compared to CON Rees et al.2009 [50] "
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    ABSTRACT: This systematic review was performed to summarize the current evidence for whole body vibration (WBV) interventions on postural control in elderly. English and German language papers in Medline, PEDro, Cinahl and the Cochrane databases were searched. Two reviewers extracted data on patients' characteristics, type of WBV intervention and outcomes. Two independent reviewers rated the methodological quality of these studies. Data were pooled using random-effects meta-analysis. Fifteen papers reporting quantitative data were included. Results from 15 papers could be pooled for a meta-analysis. The studies involved 933 participants. In 7 studies the authors investigated the effects of vibration plates generating vertical sinusoidal vibrations (VS-WBV) and 7 papers described the use of side-alternating sinusoidal vibrations (SS-WBV). One study investigated both VS-WBV and SS-WBV.Weak to moderate evidence of an overall effect as a result of VS-WBV and SS-WBV was observed for (a) static balance for post-intervention values with a standardized mean difference (SMD) -0.06, 95% CI -0.31 to 0.18 and for change values SMD -0.26, 95% CI -1.09 to 0.57, and (b) dynamic balance for post-intervention-values SMD -0.34, 95% CI -0.60 to -0.08. For functional balance (c) an overall outcome for post-intervention values with SMD of 0.34, 95% CI -0.19 to 0.87 was found. The 15 studies reviewed were of moderate methodological quality. In summary, SS-WBV seems to have a beneficial effect on dynamic balance in elderly individuals. However, the current results should be interpreted with caution because of the observed heterogeneity of training parameters and statistical methods. Future studies are warranted to evaluate the effects of WBV on postural control in an elderly population.
    BMC Geriatrics 11/2011; 11:72. DOI:10.1186/1471-2318-11-72 · 2.00 Impact Factor
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    • "For instance besides direct effects on the neuromuscular level (Torvinen et al., 2002) reactions occur also within the neuroendocrine system (Prisby et al., 2008). Other authors have demonstrated that whole body vibration exercises might improve muscle strength (Rees et al., 2008) bone density (Rubin et al., 2003; Verschueren et al., 2004), postural control (Rees et al., 2009) and muscle power (Russo et al., 2003). Moreover, the health-related quality of life is increased and the fall risk is decreased (Bruyere et al., 2005). "
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    ABSTRACT: Parkinson's disease (PD) is a complex, progressive and disabling neurodegenerative disorder marked by progressive loss of nigrostriatal dopaminergic neurons which is related to a continuous impairment of motor functions. As pharmacological treatments (L-Dopa, Dopamin Agonists) are lowly effective with respect to postural disturbance, and furthermore they lose effectiveness with disease progression potent nonpharmacologic therapies, are of crucial importance for the management of impairments. Besides traditional types of exercise, like strength or endurance training, whole body vibration was found having positive influence on PD motor symptoms. The aim of this work is to present a suitable review about the published papers found in the PubMed in which there are information about the use of the whole body vibration in patients with PD. Using the keywords "Parkinson's disease" or "Parkinson's disease" associated with "whole body vibration" six publications were found. One publication among the six, it was about vibration delivered in the entire body produced by a physioacoustic chair and it was also not analyzed in this work. Five papers among six were selected after a search in the PubMed using the keywords "Parkinson´s disease" and "whole body vibration". The frequency used in four of these five papers is the same (6Hz). Only a paper presents a frequency of 25Hz. The positive findings indicated in the papers seem in depend on the frequency and they were found with 6 or 25 Hz. Only in a publication has not presented difference between the clinical conditions in the experimental (whole body vibration) and control (placebo). All the other authors have noticed positive clinical findings using the oscillating platform. It is highly relevant in the development of clinical procedures to the management of patients with PD. As the use of the oscillating platforms is very inexpensive and positive clinical findings have been noticed with the use of whole body vibration in patients with PD, it is suggested to implement the studies involving the application of the exercises with whole body vibration in oscillating platforms to manage the patients with PD.
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    • "(Cheung et al., 2007; Rees et al., 2008b "
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    ABSTRACT: To determine whether 10 weeks of whole-body vibration (WBV) training has a significant effect on strength, muscle mass, muscle power, and mobility in older women, 26 subjects were randomly assigned to a WBV training group (n=13; mean age 79 years) and a control (CON) group (n=13; mean age 76 years). Maximal voluntary isometric contraction (MVIC) increased 38.8% in the WBV group, without changes in the CON group. Electromyographic activity of the vastus medialis (VM), the vastus lateralis, and the biceps femoris (BF) did not change in either group. Thigh muscle cross-sectional area increased significantly after training in VM (8.7%) and BF (15.5%). Muscle power at 20%, 40%, and 60% MVIC decreased from pre-test to post-test in the CON group; however, WBV training prevented the decrease in the WBV group. Consequently, mobility, measured by the Timed Up and Go test, increased significantly after training (9.0%) only in the WBV group. Ten weeks of lower limb WBV training in older women produces a significant increase in muscle strength induced by thigh muscle hypertrophy, with no change in muscle power. The adaptations to WBV found in the present study may be of use in counteracting the loss of muscle strength and mobility associated with age-induced sarcopenia.
    Scandinavian Journal of Medicine and Science in Sports 05/2009; 20(2):200-7. DOI:10.1111/j.1600-0838.2009.00919.x · 3.17 Impact Factor
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