Effects Of Whole-body Vibration Research Articles

Effect of whole body vibration on bone mineral density in children with myelomeningocele

In patients with myelomeningocele (MMC), a high number of fractures occur in the paralyzed extremities, affecting mobility and independence.The purpose of this study was to investigate the effect of whole body vibration on bone mineral density in children with MMC. Methodology:20 children with MMC ,fromboth sexes, participated in this study.Their age ranged from 2 to 5 years.They were divided randomly into 2 groups of equal number:Control group(groupA) this group received a specially designed physical therapy program and group B( study group) this group received the same exercise program given to group A ,in addition to, whole body vibration(WBV).Bone mineral density (BMD) of the legs, femur and spine was measured using lunar prodigy advance apparatus pre and after 3 months.Results:There was significant increase in bone mineral density in both groups with more improvement in the study group.Conclusion:Whole body vibration can be used as an effective method for increasing BMD for children with MMC.

Immediate Effects of Whole Body Vibration on the Range of Motion of the Lower Limbs of Stroke Patients with Hemiplegia

〔目的〕本研究はwhole-body vibration （WBV）トレーニングが脳卒中片麻痺患者の身体機能および能力に与える即時効果を検討した．〔対象と方法〕当院に入院中の脳卒中患者30名を対象とした．WBV群と非WBV群の2群に分類した．WBVによる刺激（周波数25 Hz，2分間）を実施し, 実施前後に関節可動域（ROM），10 m歩行時間，timed up and go test（TUG），立位バランスを評価した．〔結果〕WBV群は非WBV群と比較して，ROMが有意に改善した．〔結語〕脳卒中片麻痺患者におけるWBVを用いたトレーニングは, 実施直後にROMの改善によるストレッチ効果があると期待される．

Effects of whole body vibration and resistance training on bone mineral density and anthropometry in obese postmenopausal women.

Objective. The aim of this study was to evaluate the impact of two exercise programs, whole body vibration and resistance training on bone mineral density (BMD) and anthropometry in obese postmenopausal women. Material and Methods. Eighty Egyptian obese postmenopausal women were enrolled in this study; their age ranged from 50 to 68 years. Their body mass index ranged (30–36 kg/m2). The exercise prescription consisted of whole body vibration (WBV) and resistance training. Bone mineral density (BMD) and anthropometrical parameters were measured at the beginning and at the end of the study. Changes from baseline to eight months in BMD and anthropometric parameters were investigated. Results. BMD at the greater trochanter, at ward's triangle, and at lumbar spine were significantly higher after physical training, using both WBV and resistive training. Moreover, both exercise programs were effective in BMI and waist to the hip ratio. Simple and multiple regression analyses showed significant associations between physical activity duration and BMD at all sites. The highest values of R 2 were found for the models incorporating WBV plus BMI. Conclusion. The study suggests that both types of exercise modalities had a similar positive effect on BMD at all sites in obese postmenopausal women. Significant association was noted between physical activity and anthropometric variables and BMD measures at all sites.

Effect of whole body vibration on the serum dentin matrix protein level

Effect of whole body vibration on the serum dentin matrix protein level

The Health Effects and Keep Down of Whole Body Vibration

Vibration was defined that oscillation of the body according to the reference point. The tools that are used in industry and are the source of vibration cause diseases. For this reason, the vibration has been one of the factors that affect the health and of the most widely researched in the field of ergonomics. The perceived intensity and health effects of vibration depend on the vibration frequency, intensity, direction, acceleration, duration of exposure, vibration affects the region, age, gender, posture, distance from the source person, activity, time of day and the person\'s overall health condition. The one of the most common health effects of whole body vibration is impact on musculoskeletal system. In many studies, indicated that whole-body vibration effect waist, back, shoulder and neck especially. There were varied studies that hormone levels were not changed as well there were varied studies that hormone levels were increased or decreased. There were varied studies about the digestive and circulatory system. In these studies, digestive system complaints, peptic ulcer, gastritis, varicose veins and hemorrhoids were determined frequently. For protection the health effect of vibration, Directives of the European Commission, Turkish Standards, Assessment and Management of Environmental Noise and Vibration Regulations were published. For the control of vibration are need technical and medical measures and education

Random Whole Body Vibration over 5 Weeks Leads to Effects Similar to Placebo: A Controlled Study in Parkinson's Disease.

Background. Random whole body vibration (WBV) training leads to beneficial short-term effects in patients with Parkinson's disease (PD). However, the effect of WBV lasting several weeks is not clear. Objectives. The aim of this study was to assess a random WBV training over 5 weeks in PD. Methods. Twenty-one participants with PD were allocated to either an experimental or a placebo group matched by age, gender, and Hoehn&Yahr stage. The WBV training consisted of 5 series, 60 s each. In the placebo group, vibration was simulated. The primary outcome was the change of performance in Functional reach test (FRT), step-walk-turn task, biomechanical Gait Analysis, Timed up and go test (TUG), and one leg stance. Findings. In most of the parameters, there was no significant interaction of “time∗group.” Both groups improved significantly in Gait parameters, TUG, and one leg stance. Only in the FRT [F(1,15) = 8.397; P < 0.05] and in the TUG [F(1,15) = 4.971; P < 0.05] the experimental group performed significantly better than the placebo group. Conclusions. Random WBV training over 5 weeks seems to be less effective than reported in previous studies performing short-term training. The slight improvements in the FRT and TUG are not clinically relevant.

Effects of Whole-Body Vibration and High-Impact Aerobic Training on Bone Metabolism and Body Balance in Premenopausal Women

Purpose Whole-body vibration (WBV) is new type of exercise that is being increasingly performed to prevent bone fractures and osteoporosis in frail people. Whether WBV plays an important role in positive skeletal responses of premenopausal women is controversial. The aim of this study was to determine the effects of 6 months of supervised WBV and high-impact aerobics (HIA) on bone metabolism and body balance in pre-menopausal women. Methods Sixty-seven eligible premenopausal women were stratified into three groups: the WBV training group (n = 23), HIA training group (n = 22), and control group (n = 22). The subjects in both training groups participated in a supervised training program involving three sets of 3-minute exercise sessions three times a week for 6 months. The WBV group received vibration in a static standing position. The HIA group jumped rope. Bone-related factors and body balance were compared at baseline and 6-month intervals. Results Comparison of the percent changes of the variables showed that WBV and HIA at the stimulus level of the current study had no superior effect on the bone metabolism of healthy premenopausal women compared with controls. However, comparison of the absolute changes between baseline and the 6-month intervention showed a couple of positive findings in all groups. Conclusions Our data suggest that higher exposures of isolated WBV than those used in the current study or WBV plus various types of HIA training might be needed to improve the bone metabolism and body balance in premenopausal women.

Effect of Whole-Body Vibration Therapy on Health-Related Physical Fitness in Children and Adolescents With Disabilities: A Systematic Review

To summarize the current literature regarding the effects of whole-body vibration (WBV) therapy on the health-related physical fitness of children and adolescents with disabilities. A literature search using MEDLINE-PubMed, SPORT DISCUS, and EMBASE databases was conducted up to August 2013. A total of 22 articles were included in this review (eight randomized controlled trials, four non-randomized controlled trials, three case reports, and seven reviews). Most of the studies showed positive effects of WBV on health-related physical fitness in children and adolescents with disabilities. Overall, 10-20 minutes at least three times per week, for a minimum of 26 weeks, with high frequency (between 15 and 35 Hz) and low amplitude (no more than 4 mm of peak-to-peak displacement) might be an appropriate protocol to achieve improvement in body composition and muscular strength. Because no serious adverse events have been observed, WBV might be defined as a safe treatment to be applied in children and adolescents with disabling conditions. Further research is recommended to explore the minimum dose of exposure to WBV required to elicit an optimal response in children and adolescents for improving health-related physical fitness. These may be translated into a more specific WBV protocol.

Effects of whole-body vibration on plasma sclerostin level in healthy women.

To determine whether plasma sclerostin levels are affected by applying whole-body vibration treatments. Following a pilot study, the pretsent prospective, randomized, controlled single-blind study was performed on 16 healthy volunteer women (ages 20 to 40 years). Subjects were randomly divided into 2 groups, and whole-body vibration was applied to the treatment group but not to the controls. The plasma sclerostin levels were measured before the treatment and at the 10th minute after whole-body vibration on the 1st, 2nd, and 5th days of application. The plasma sclerostin level measured at 10 min after the whole-body vibration treatment increased 91% (P = 0.024) on the 1st day and decreased 31.5% (P = 0.03) on the 5th day in the whole-body vibration group. In the control group, there was no change in the plasma sclerostin level at any time. A progressive increase in baseline plasma sclerostin levels during the 5 days of vibration sessions was also found. Our study demonstrated that whole-body vibration can change plasma sclerostin levels, and that this change is detectable 10 min after whole-body vibration treatments.

Synergetic effect of whole-body vibration and parathyroid hormone (1-34) on bone healing

Synergetic effect of whole-body vibration and parathyroid hormone (1-34) on bone healing

Whole-body vibration training effect on physical performance and obesity in mice.

The purpose of this study was to verify the beneficial effects of whole-body vibration (WBV) training on exercise performance, physical fatigue and obesity in mice with obesity induced by a high-fat diet (HFD). Male C57BL/6 mice were randomly divided into two groups: normal group (n=6), fed standard diet (control), and experimental group (n=18), fed a HFD. After 4-week induction, followed by 6-week WBV of 5 days per week, the 18 obese mice were divided into 3 groups (n=6 per group): HFD with sedentary control (HFD), HFD with WBV at relatively low-intensity (5.6 Hz, 0.13 g) (HFD+VL) or high-intensity (13 Hz, 0.68 g) (HFD+VH). A trend analysis revealed that WBV increased the grip strength in mice. WBV also dose-dependently decreased serum lactate, ammonia and CK levels and increased glucose level after the swimming test. WBV slightly decreased final body weight and dose-dependently decreased weights of epididymal, retroperitoneal and perirenal fat pads and fasting serum levels of alanine aminotransferase, CK, glucose, total cholesterol and triacylglycerol. Therefore, WBV could improve exercise performance and fatigue and prevent fat accumulation and obesity-associated biochemical alterations in obese mice. It may be an effective intervention for health promotion and prevention of HFD-induced obesity.

Effects of osteocytes on vibration-induced reflex muscle activity in postmenopausal women

To assess whether osteocytes have an effect on reflex myoelectrical activity during whole-body vibration (WBV) in postmenopausal women. Participants were classified into 2 groups: the low bone mineral density (BMD) group (n = 37) and normal BMD group (n = 43). Hip BMD was measured using dual-energy X-ray absorptiometry. Surface electromyography data recorded from the adductor longus muscle were processed to obtain vibration-induced reflex myoelectrical activity. Changes in plasma sclerostin (SOST) levels with WBV were expressed as a standardized vibration-induced SOST index. The standardized vibration-induced SOST index was 1.03 ± 0.24 in the low BMD group and 0.99 ± 0.33 in the normal BMD group. For plasma SOST levels, no group-by-time interaction was found. The resting myoelectrical activities of adductor muscles increased significantly during WBV in both groups. However, there was no significant difference in the main effects of WBV on resting myoelectrical activity between the groups. The standardized vibration-induced plasma SOST index was found to be a significant independent predictor of the standardized vibration-induced reflex myoelectrical activity of the adductor muscle in both groups. This study suggests that osteocytes serve as mechanoreceptors of reflex electromyography during WBV.

The acute effect of whole body vibration (WBV) training on power-related measurements of field hockey players

The purpose of this study was to determine the effect of acute whole body vibration (WBV) training on the speed, agility and explosive power performance measurements of university field hockey players. A two-way randomized, crossover experimental research design was used in the study. Seventeen university field hockey players were randomly chosen from the first hockey teams of the North-West University, South-Africa to participate in the study and were divided into two groups. The players underwent two days of testing once as part of a control group and subsequently as part of the experimental group. After the first testing opportunity, a crossover design was implemented by subjecting the control group to the treatment and allowing the initial experimental group to form the control group. The results showed that no statistical significance was obtained in any of the measurements from pre to post-testing. ANOVA analysis of the speed, agility and explosive power measurements revealed that the sequence of treatment had no significant effect on any of the variables. Main effect ANOVA analysis of the same variables revealed that none of the measurements were influenced significantly by the acute application of vibration training. The investigation of individual results from pre-to post-testing did however show tendencies towards improvement in the performances of 5m sprint (65%) and agility t-test (ATT) (53%) times. The acute application of WBV did not lead to any significant changes in the speed, agility and explosive power measurements of university field hockey players.Key words: Whole body vibration training, field hockey, speed, explosive power, agility.

Efficacy of WBV as a modality for inducing changes in body composition, aerobic fitness, and muscular strength: a pilot study

The purpose of this pilot study was to evaluate the effectiveness of whole body vibration (WBV) training as a modality for inducing changes in body composition, cardiovascular condition, and muscular strength in sedentary postmenopausal women. WBV training was compared with other training regimens, ie, aerobic training and circuit resistance training, commonly used to promote weight loss, cardiovascular conditioning, and muscular strength. Postmenopausal women (aged 48–60 years) were randomly assigned to WBV training, circuit resistance training, or aerobic training. Participants trained three times per week for 8 weeks. The training regimens were progressive in nature, with increases in training intensity and duration occurring throughout the 8-week period. Body composition was assessed using dual-energy X-ray absorptiometry analyses. A modified Bruce treadmill protocol was used to assess aerobic capacity (VO2peak) and time to peak exhaustion. Upper and lower body strengths were determined by one repetition maximum (1-RM) chest and leg presses, respectively. Variables were analyzed using separate 3 (exercise mode) × 2 (time) repeated-measures analysis of variance with effect sizes due to the small sample size. No significant main effects or interactions were seen for any body composition variable; however, moderate to large effect sizes (η2=0.243 and η2=0.257) were detected regarding interactions for percent body fat and lean body mass favoring aerobic training and circuit resistance training. For VO2peak, no significant main effects or interactions were detected (time, η2=0.150; P=0.11; time × group, η2=0.139; P=0.30); but a significant time effect was observed for time to peak exhaustion (η2=0.307; P=0.017). A significant interaction for upper body strength (η2=0.464; P=0.007), and main effect for time in lower body strength (η2=0.663; P=0.0001) was detected. Post hoc analysis indicated a significant increase in upper body strength for circuit resistance training (P=0.023) and a decrease for WBV training (P=0.015). Our results indicate that WBV may not be an effective alternative to traditional training with regard to body composition or aerobic capacity, but could have a positive impact on lower body strength.

Effects of Whole Body Vibration Plus Diet on Insulin-Resistance in Middle-Aged Obese Subjects

We investigated the early effects of whole body vibration (WBV) added to hypocaloric diet on insulin-resistance and other parameters associated with glucose regulation in sedentary obese individuals. We randomly assigned 34 patients to WBV plus hypocaloric diet (WBV group) or diet alone (CON group) for 8 weeks. Fasting and post-load glucose, insulin, lipids, C-reactive protein, tumor necrosis factor-α, leptin, adiponectin were assessed. Insulin sensitivity index (ISI) was derived from oral-glucose-tolerance test. Body composition was evaluated with dual-energy X-ray absorptiometry. Both groups lost approximately 5% of weight, with greater reduction of body fat in WBV than in CON (-7.1±1.2 Kg vs. -5.3±1.0 Kg, p=0.003). Percent variation of ISI was more pronounced in WBV than in CON group (+35±4% vs. + 22±5%, p=0.002), accompanied by slight improvement in post-load glucose (-1.07±0.02 vs. - 0.12±0.01 mmol/l, p=0.031) but without changes in fasting levels. Adiponectin significantly increased in WBV group compared with CON (p=0.021 for comparison) whereas no differences in leptin and inflammatory markers were observed. In middle-aged sedentary obese subjects, WBV added to hypocaloric diet for 8 weeks improved body composition, insulin-resistance, glucose regulation and adiponectin levels to a greater extent compared with diet alone. Efficacy and feasibility of this approach in the long term need to be ascertained.

Whole-body vibration as a mode of dyspnoea free physical activity: a community-based proof-of-concept trial

BackgroundThe potential of whole-body vibration (WBV) as a mode of dyspnoea free physical activity for people with chronic obstructive pulmonary disease (COPD) is unknown among community-based settings. Furthermore, the acute effects of WBV on people with COPD have not been profiled in community-based settings. The aim of this community-based proof-of-concept trial was to describe acute effects of WBV by profiling subjective and objective responses to physical activity.FindingsSeventeen community-dwelling older adults with COPD were recruited to participate in two sessions; WBV and sham WBV (SWBV). Each session consisted of five one-minute bouts interspersed with five one-minute passive rest periods. The gravitational force was ~2.5 g for WBV and ~0.0 g for SWBV. Reliability of baseline dyspnoea, heart rate, and oxygen saturation was first established and then profiled for both sessions. Acute responses to both WBV and SWBV were compared with repeated measures analysis of variance and repeated contrasts. Small changes in dyspnoea and oxygen saturation lacked subjective and clinical meaningfulness. One session of WBV and SWBV significantly increased heart rate (p ≤ 0.02), although there was no difference among WBV and SWBV (p = 0.67).ConclusionsThis community-based proof-of-concept trial showed that a session of WBV can be completed with the absence of dyspnoea for people with COPD. Furthermore, there were no meaningful differences among WBV and SWBV for heart rate and oxygen saturation. There is scope for long-term community-based intervention research using WBV given the known effects of WBV on peripheral muscle function and functional independence.

The Immediate Effects of Whole Body Vibration on Maximum Isometric Strength of Elbow Flexor Muscles in non-athletes and young Individuals

Background and Aim: Whole Body Vibration is as an effective exercise modality for musculoskeletal structure that is combination with conventional resistance training, is effective in improving strength and power. So far, only a few studies have examined the effects of whole body vibration on upper limb muscle strength. In most studies the effects of whole body vibration was studied during push up directly on vibration plate. The aim of this study is to investigate the acute indirect effects of a single session of whole body vibration on maximum isometric strength of the elbow flexor muscles in non-athletes and young individuals. Material and Method : Thirty healthy and non-athletes volunteers were randomly assigned into two groups of Whole body vibration (N=15) and control group (N=15). Maximal isometricstrength of the elbow flexor muscles of the whole body vibration group beforeand after vibration (3 sets of 45 seconds, 50 Hz and low amplitude) wasmeasured using transducer. In the control group, the same procedure was carried out without vibration. Result : Whole body vibration enhances isometric strength of the elbow flexor muscles significantly ( P=.004). Conclusion : It seems that the short-term and one session of whole body vibration, which indirectly apply, is an effective method in increasing isometric strength of elbow flexor muscles . Also, if you use whole body vibration with the functional forms of other exercises, better result will be achieved. Key Words : Whole body vibration, maximum isometric strength, elbow muscles

In vivo measurements of the effect of whole body vibration on spinal loads

It is assumed that whole body vibration (WBV) improves muscle strength, bone density, blood flow and mobility and is therefore used in wide ranges such as to improve fitness and prevent osteoporosis and back pain. It is expected that WBV produces large forces on the spine, which poses a potential risk factor for the health of the spine. Therefore, the aim of the study was to measure the effect of various vibration frequencies, amplitudes, device types and body positions on the loads acting on a lumbar vertebral body replacement (VBR). Three patients suffering from a fractured lumbar vertebral body were treated using a telemeterized VBR. The implant loads were measured during WBV while the patients stood on devices with vertically and seesaw-induced vibration. Frequencies between 5 and 50 Hz and amplitudes of 1, 2 and 4 mm were tested. The patients stood with their knees straight, slightly bent, or bent at 60°. In addition, they stood on their forefeet. The peak resultant forces on the implant increased due to vibration by an average of 24% relative to the forces induced without vibration. The average increase of the peak implant force was 27% for vertically induced vibration and 15% for seesaw vibration. The forces were higher when the legs were straight than when the knees were bent. Both the vibration frequency and the amplitude had only a minor effect on the measured forces. The force increase due to WBV is caused by an activation of the trunk muscles and by the acceleration forces. The forces produced during WBV are usually lower than those produced during walking. Therefore, the absolute magnitude of the forces produced during WBV should not be harmful, even for people with osteoporosis.

The effectiveness of a single session of Whole-Body Vibration in improving the balance and the strength in type 2 diabetic patients with mild to moderate degree of peripheral neuropathy: A pilot study

Peripheral neuropathy is a common complication of diabetes mellitus. Muscle strength and the balance deficits are seen in these patients. Whole-Body Vibration (WBV) is a time-efficient method which may be beneficial for them. The immediate effects of WBV on muscle strength and balance have not been studied yet. The aim of this study was to investigate the effects of one session of WBV on muscle strength and the balance of diabetic patients. Ten diabetic patients with peripheral neuropathy took part in this study. Outcome measurements were total strength, strength of tibialis anterior and quadriceps femoris muscles and the balance parameters including Unilateral Stance Test and Timed Up and Go Test. Tibialis anterior muscle strength and Timed Up and GO Test parameters showed significant differences post-exercise in comparison to baseline. A session of WBV had positive effects on muscle strength and the balance in patients with type-2 diabetes associated with neuropathy.

Effect of Whole Body Vibration on Functional Mobility in Elderly Patients

Whole body vibration (WBV) represents one of the most serious problems in industries. There is a discussion about effects of long-term WBV exposures on employees' health state in scientific community. However, therapeutic usage of WBV may be beneficial for various groups of patients due to the reports of enhanced muscular strength, power or even bone density. The purpose of this study was to investigate immediate response of single WBV training unit on mobility of older individuals with various neurological disorders. Twelve patients (67.0 &plusmn; 3.54 years, 4 males and 8 females) were assessed before WBV (10 min, vertical 2 mm, 30 Hz) and then 1 min afterwards. Individual changes in gait kinematics were analyzed and the results indicated positive effects of WBV. Kinematical gait parameters were more symmetric considering right and left side. Depending on the severity of patient's disease these changes were more or less significant. The improvements in gait kinematics after WBV convinced us that this technique can be carefully used in patients' therapy and it may be used together with individually planed rehabilitation processes to bring more satisfying results.