Effects Of Whole-body Vibration Training Research Articles

Effects of whole-body vibration training on lower extremity muscle strength and physical function in elderly patients with sarcopenia

ABSTRACT Objectives To investigate the feasibility and benefits of WBV training in enhancing muscle strength and physical performance in older inpatients with sarcopenia. Methods We included 40 patients with sarcopenia (mean age 85 years; age range 80~90 years) and randomly separated into the WBV group or control (CON) group. The WBV group underwent 8 weeks of conventional rehabilitation training combined with WBV, whereas the CON group received 8 weeks of conventional rehabilitation training alone. The primary outcome was maximal isometric muscle strength. The secondary outcomes were the time-up-and-go test (TUGT), the five-times sit-to-stand test (FTSST), the 6-m gait speed test, and the Morse Fall Scale (MFS). Results After an 8-week intervention, only the quadriceps and tibialis anterior muscles in the CON group showed substantial gains in strength. In the WBV group, significant increases were observed in iliopsoas (P<0.05), quadriceps (P<0.01), hamstring(P<0.01), and tibialis anterior muscle (P<0.01) respectively. For all physical performance assessments, improvements were observed in both CON and WBV groups (P<0.05), the improvement in the WBC group was greater than the CON group (P<0.05). However, there was no significant difference in fall risk between the two groups (P>0.05). Conclusion This result highlights a eight weeks of whole-body vibration training can increase the lower-limb muscular strength and physical performance of older inpatients with sarcopenia.

Effects of 4weeks of whole-body vibration training on energy expenditure during deep squats of male well-trained students.

From the perspective of energy expenditure, this study investigated the effects of whole-body vibration training on the energy metabolism of deep squats with different weights. Twenty-two healthy male college students with sports experiences were selected and randomly assigned to perform resistance exercise vibration (REV) or resistance exercise (RE) with varying loads two times per week for 4weeks. Oxygen uptake and heart rate were measured before, during, and after exercises using a gas analyzer, and energy expenditure was calculated. The results showed the following: 1) the oxygen uptake and energy expenditure of the REV group were significantly higher than those of the RE group during and 30min after exercise (p < 0.01), respectively, and the excess post-exercise oxygen consumption (EPOC) was also significantly higher than that of the RE group (p < 0.01). 2) Changes in the oxygen uptake and energy expenditure were stable with increasing exercise in both vibration and non-vibration conditions. There was no difference in energy expenditure per unit of body mass versus additional energy per kilogram of body weight (p > 0.05). 3) No significant differences in changing exercise intensity were observed in the REV group compared to those in the RE group during the adjacent incremental load phases of △ (40%-0%) and △ (80%-40%) of load during and 30min after exercise (p > 0.05). Our results suggest that 1) vibration training can increase energy expenditure during low-intensity training and excess post-exercise oxygen consumption, and improve the exercise intensity. 2) The effects on energy expenditure were the same for both weight-bearing and non-weight-bearing deep squats, up to 40% of body mass.

Effects of whole-body vibration training in static and dynamic semi-squat patterns on the lower limb muscle activity

The decline in physical function and the deterioration of the neuromusculoskeletal system in older people can easily lead to reduced muscle strength and slower mobility in the joints of the lower limbs, increasing the incidence of chronic diseases such as muscle wasting disorders, osteoporosis, debilitation and fall and fracture. It may also affect the quality of life and functional independence of older people, and in serious cases, even directly threaten their health. This study was conducted to determine the differences in lower limb muscle activation characteristics between static semi-squat (SSS) and dynamic semi-squat (DSS) training in middle-aged and old women at different frequencies and amplitudes and to explore a personalized whole-body vibration (WBV) training instruction program suitable for them. Fifteen healthy middle-aged and old women (60.8 ± 4.18 years old) were recruited for SSS and DSS WBV training. Their muscle activity of the rectus femoris (RF), vastus medialis (VM), vastus lateralis (VL), biceps femoris (BF) and gastrocnemius (GS) were calculated using the BTS FreeEMG300 wireless surface electromyography (EMG), which participants were completed that the two different contraction patterns of squats on WBV training. The knee flexion was maintained at 45° while the subjects were performing the SSS training, while during the DSS training, the knee flexion fluctuates between 10° and 45°. The SSS exercise requires the subject to remain stationary in the squatting position and the DSS to be performed at a rhythm of 4 s/repetition, with 2 s of squatting, 1 s of standing up, and 1 s intervals. The vibration frequencies and amplitudes were changed to the WBV training intensity, and the vibration frequencies were set to 0 Hz, 30 Hz and 40 Hz, and the amplitudes were set to 0 mm, 2 mm and 4 mm. Each subject is randomised to participate in WBV training with 5 combinations of frequency and amplitude in both static and dynamic semi-squat patterns. These were 0 Hz 0 mm, 30 Hz 2 mm, 30 Hz 4 mm, 40 Hz 2 mm, 40 Hz 4 mm for the static and dynamic demi-squat patterns of WBV training. A two-way repeated measures ANOVA was applied to compare the changes in surface EMG of the lower limb muscles in different modes of SSS and DSS with WBV training. (1) Our results showed significantly interaction effects in the frequency × amplitude of root mean square (EMGrms) in GS (P < 0.05), while no significant differences were observed in the interaction effects of SSS/DSS patterns, frequencies and amplitude of RF, VM, VL and BF (P > 0.05). (2) Comparisons between groups showed that the EMGrms of the RF were significantly higher for the DSS than the SSS (P < 0.05). Additionally, the EMGrms of VL and BF at 30 Hz and 40 Hz were greater than 0 Hz (P < 0.05). Also, The EMGrms at 4 mm for the VM, VL and BF were significantly higher than 0 mm, the EMGrms at 4 mm for the VM and VL were significantly higher than 2 mm (P < 0.05), and the EMGrms at 2 mm of VL and BF were significantly higher than 0 mm (P < 0.05). (3) The results showed that WBV stimulation significantly increased the EMGrms of the GS in the SSS compared with the vibration free semi-squat alone (P < 0.05). However, there were no significant differences between WBV training protocols for SSS patterns with different frequencies and amplitudes (frequencies and amplitudes not were 0 Hz and 0 mm) (P > 0.05). Comparison of EMGrms for WBV training of the GS in DSS patterns showed that 40 Hz/4 mm was significantly higher than 0 Hz/0 mm (P < 0.05), but there was no significant difference between the remaining vibration conditions (P > 0.05). WBV training for DSS can significantly improve the activation of the RF compared to SSS pattern. Compared with no vibration, WBV could significantly improv the activity of the lower limb muscles. Additionally, an increase in amplitude from 2 to 4 mm could significantly improve VM and VL activation, while no significant improvement on lower limb muscle activation was observed for increasing vibration frequency from 30 to 40 Hz.

Effects of whole-body vibration training combined with KAATSU training on lower limb joint muscle strength in older women.

Objective: This study aimed to investigate the effect of whole-body vibration training (WBVT) combined with KAATSU training (KT) on lower limb joint muscle strength and to provide a reference for improving muscle strength in older women. Methods: A total of 86 healthy older people was randomly divided into WBVT group (WG, n = 21), KT group (KG, n = 22), combined intervention group (CIG, n = 20) and control group (CG, n = 23). WG and CIG subjects underwent WBVT, and KG and CIG subjects underwent 150mmHg and lower limb joint and local compression intervention for 16 weeks (three times per week, about 15min/time). The peak torque (PT) and endurance ratio (ER) of joint flexion or extension were tested for all subjects. Results: 1) Results at 16weeks were compared with the baseline data. The knee extension and ankle flexion PT (60°/s) in CIG increased by 14.3% and 15.3%, respectively (p < 0.05). The knee extension PT (180°/s) increased by 16.9, 18.4% and 33.3% in WG, KG and CIG (p < 0.05), respectively, and the ankle extension PT (180°/s) in CIG increased by 31.1% (p < 0.05). The hip, knee extension and ankle flexion ER increased by 10.0, 10.9% and 5.7% in CIG (p < 0.05), respectively. 2) Results were compared among groups at 16 weeks. The relative changes were significantly lower in WG, KG and CG compared to CIG in the knee extension and ankle flexion PT (60°/s) (p < 0.05). The relative changes were significantly greater in WG, KG and CIG compared to CG in the knee extension PT (180°/s) (p < 0.05). The relative changes were significantly lower in WG, KG and CG compared to CIG in the ankle extension PT (180°/s) (p < 0.05). The relative changes were significantly lower in WG, KG and CG compared to CIG in the hip extension ER (p < 0.05). The relative changes were significantly lower in CG compared to CIG in the knee extension ER (p < 0.05). Conclusion: Sixteen-week WBVT and KT increased the knee extensor strength in older women. Compared with a single intervention, the combined intervention had better improvements in the knee extensor and ankle flexor and extensor strength and hip extension muscle endurance. Appears to be some additional benefit from combined intervention above those derived from single-interventions.

The Effects of Whole-Body Vibration Training on Trunk Muscle Strength: A Narrative Review

Mechanical vibration can improve neuromuscular function through postural control strategies, muscle tonic mechanisms, and tonic vibration reflexes. Whole body vibration (WBV) has also been announced to increase bone mineral density, muscle endurance and strength, as well as to enhance proprioceptive system. Moreover, WBV training was found to be a constructivestrategy for improving the physical performance of elite athletes and healthy individuals in terms of muscle strength, agility, flexibility, and vertical jump height. Although there is still no consensus in research in this area, it is argued that certainmolecular mechanisms involved in the physiological adaptations of exercise also emerge during WBV training. Clarifying these physiological mechanisms is crucial for optimizing the effectiveness of WBV trainings. Previous studies have examined the effects of WBV and have indicated developments in muscle strength, muscle endurance, flexibility, muscle cross sectional area, bone mineral density and body composition. However, no standard prescription has been established to optimize the effects of WBV, including the determination of vibration frequency and amplitude. In addition, the majority of previous studies have investigated the effects of WBV training on the extremities. There are few publications investigating its effectiveness on trunk and core musclestrength, which is one of the important indicators of athletic performance. Therefore, we conducted a narrative review of the literature, referring to the Cochrane Library and Medline databases, to summarize the most recent scientific evidence on the effects of whole-body vibration on trunk muscle strength. This narrative review concludes that at least 8 weeks of WBV training is more effective on trunk muscle strength than those performing the same exercises without WBV.

Meta-analysis of the effect of whole-body vibration training on the improvement of limb function in patients with Parkinson's disease.

This study aimed to systematically evaluate the effect of whole-body vibration (WBV) training on the improvement of limb function in patients with Parkinson's disease (PD). An electronic search was performed on the databases, including PubMed, Web of Science, Scopus, SCI-hub, ScienceDirect, Embase, IEEE, Medline, Wiley, ClinicaIKey, CNKI, Wanfang, VIP database, Chinese Medical Association, and CBM Database from inception to May 2022 to collect randomized controlled studies on whole-body vibration training for patients with Parkinson's disease. Two researchers independently screened the literature, extracted the data, and evaluated the quality of the literature, then used ReviewManager 5.4 software for quantitative statistical analysis, including heterogeneity test, sensitivity analysis, risk of bias assessment, combined outcome index effect size and effect size inspection. A total of 9 studies were included in the meta-analysis, including 346 patients, 174 patients in the control group and 172 patients in the observation group. Meta-analysis results showed that, compared with conventional physical therapy or drug therapy alone, whole-body vibration reduced the Unified Parkinson's Disease Rating Scale (UPDRSIII) score and significantly improved the motor function of patients with Parkinson's disease [MD=-2.39, 95% CI (-4.41, -0.37), Z=2.14 (p=0.23)]. Moreover, whole-body vibration significantly improved the walking stability of Parkinson's patients [MD=-1.96, 95% CI (-2.71-1.21), Z=1.17 (p=0.03)]. However, its improvement in balance ability [MD=-0.06, 95% CI (-0.77, 0.65), Z=1.07 (p=0.19)] and daily living ability [MD=0.03, 95% CI (-1.68, 0.74), Z=0.24 (p=0.87)] of patients, it was not t statistically significant. Compared with conventional therapy, WBV has certain advantages in improving the balance function and gait performance of PD patients, but the effect on balance ability and daily living ability is not significant. Thus, more high-quality research is required for further verification.

The Effects of Whole-Body Vibration Training with Blood Flow Restriction on Lower Extremity Muscle Activity and Hemodynamic Variables

The Effects of Whole-Body Vibration Training with Blood Flow Restriction on Lower Extremity Muscle Activity and Hemodynamic Variables

The Effects of Whole-Body Vibration Training with Blood Flow Restriction on Lower Extremity Muscle Activity and Hemodynamic Variables

The Effects of Whole-Body Vibration Training with Blood Flow Restriction on Lower Extremity Muscle Activity and Hemodynamic Variables

Whole Body Vibration Training Improves Maximal Strength of the Knee Extensors, Time-to-Exhaustion and Attenuates Neuromuscular Fatigue

Whole-body vibration (WBV) training programs were reported to improve knee extensor muscle (KE) strength in healthy participants. Unfortunately, the underlying mechanisms of these strength gains remain unresolved. In addition, WBV training was shown to increase the time-to-exhaustion of a static submaximal endurance task. However, the effects of WBV training on neuromuscular fatigue (i.e., a decrease of the maximal voluntary isometric contraction; MVIC) induced by an endurance task is unknown. We, therefore, investigated the influence of WBV training on (i) KE MVIC and neuromuscular function, (ii) the time-to-exhaustion of the KE associated with a submaximal isometric fatiguing exercise, and (iii) KE neuromuscular fatigue and its etiology. Eighteen physically active males were assigned to a WBV group (n = 10) or a sham training group (SHAM; n = 8). The MVIC of the KE, voluntary activation, and electrically evoked responses of the KE were assessed (i) before and after a fatiguing exercise (i.e., submaximal isometric contraction) performed until failure, and (ii) before (PRE) and after a 6-week training (POST) period. At POST, the WBV training increased the KE MVIC (+12%, p = 0.001) and voluntary activation (+6%, p &lt; 0.05) regardless of the fatiguing exercise. The time-to-exhaustion was also lengthened at POST in the WBV group (+34%, p &lt; 0.001). Finally, the relative percentage of MVIC decrease after fatiguing exercises diminished in the WBV group between PRE and POST (−14% vs. −6%, respectively, p &lt; 0.001). Significant neural adaptation enhancements account for the trend in KE strength improvements observed after the WBV training program. In addition, the WBV training was effective at increasing the time-to-exhaustion and attenuating neuromuscular fatigue.

The effect of whole-body vibration on lower extremity function in children with cerebral palsy: A meta-analysis.

The aim of this meta-analysis was to evaluate the effect of whole-body vibration training on lower limb motor function in children with cerebral palsy in randomized-controlled trials (RCTs). Two independent reviewers systematically searched the records of nine databases (PubMed, Cochrane, Web of Science, EMBASE, CNKI, etc.) from inception to December 2022. Tools from the Cochrane Collaboration were used to assess risk of bias. Standard meta-analyses were performed using Stata 16.0 and Revman 5.3. For continuous variables, the arms difference was calculated as the weighted mean difference (WMD) between the values before and after the intervention and its 95% confidence interval (95% CI). Of the 472 studies identified, 13 (total sample size 451 participants) met the inclusion criteria. Meta-analysis showed that WBV training could effectively improve GMFM88-D [WMD = 2.46, 95% CI (1.26, 3.67), P<0.01] and GMFM88-E [WMD = 3.44, 95% CI (1.21, 5.68), P = 0.003], TUG [WMD = -3.17, 95% CI (-5.11, -1.24), P = 0.001], BBS [WMD = 4.00,95% CI (3.29, 4.71), P<0. 01] and the range of motion of ankle joint and the angle of ankle joint during muscle reaction in children with cerebral palsy. The effect of WBV training on 6MWT walking speed [WMD = 47.64, 95% CI (-25.57, 120.85), p = 0.20] in children with cerebral palsy was not significantly improved. WBV training is more effective than other types of conventional physical therapy in improving the lower limb motor function of children with cerebral palsy. The results of this meta-analysis strengthen the evidence of previous individual studies, which can be applied to the clinical practice and decision-making of WBV training and rehabilitation in children with cerebral palsy.

The effects of Whole-Body Vibration Training in Patellofemoral Pain Syndrome: A Systematic Review and Meta-Analysis

The effects of Whole-Body Vibration Training in Patellofemoral Pain Syndrome: A Systematic Review and Meta-Analysis

Effect of Whole-Body Vibration Training on Hemorheological Blood Indices in Young, Healthy Women.

The aim of the study is to assess the effect of single and 12-week WBVT and training without vibration on changes in hemorheological blood indices and plasma fibrinogen levels in young, healthy women. Three groups are distinguished: the experimental group-participating in WBVT (n = 17); the comparison group-implementing the same physical exercise protocol without the vibration factor (n = 12); and the control group-no intervention (n = 17). In the experimental and comparison group, blood is collected before and after the first and last training, while in the control group, blood is collected twice, 3 months apart. After a series of WBVT, a significant decrease in the mean erythrocyte volume and mean hemoglobin mass in erythrocytes, as well as a slight increase in the mean erythrocyte hemoglobin concentration, is found, and the effect of the last training is a significant decrease in plasma volume. Under the influence of repeated WBVT, there is an increase in erythrocyte deformability at low shear stress and an increase in the aggregation amplitude. The study shows that WBVT improves blood flow in the vessels and does not affect erythrocyte aggregation and the level of fibrinogen, which confirms the safety of this form of exercise.

Effekte eines Ganzkörpervibrationstrainings mit zwei unterschiedlichen Vibrationsamplituden auf die Leistungsfähigkeit der unteren Extremität

Effekte eines Ganzkörpervibrationstrainings mit zwei unterschiedlichen Vibrationsamplituden auf die Leistungsfähigkeit der unteren Extremität

Functional quality assessment of whole-body vibration training devices based on instantaneous amplitude and frequency of photogrammetric vibration measurements.

The practical use of whole-body vibration training (WBVT) and such research may be negatively influenced by generated vibrations with amplitudes, frequencies, and/or patterns that deviate from preset adjustments on WBVT devices. This study examined whether prolonged regular use can generate respective deviations. Four WBVT devices, used for 19 months in a research project on the effects of WBVT, were analyzed using photogrammetry before start of the research project and after 19 months. Divergences between preset and measured amplitudes and frequencies were calculated for all measurements. To quantify how well the output of devices correlates with the target setting, the vibration characteristics were calculated. In particular, exact long-term measurements related to the vibration amplitude is conducted and analyzed for the first time, which has been found as an important measure of the device functional quality. One device had a significantly (p<0.01) larger machine run time than the other three. This one showed the most pronounced signs of functional impairments concerning instantaneous amplitudes, frequencies and the mode of vibration after prolonged use. These results based on photometric measurements underline again that prolonged use can result in divergences between preset and actual applied amplitudes, frequencies, mode of vibration and other accuracy measurement metrics.

Study on Neural Effects of Whole-Body Vibration Training

Study on Neural Effects of Whole-Body Vibration Training

Examination of the Effect of Short-term Whole Body Vibration Training on Flexibility, Endurance and Dynamic Balance In Healthy Young People: A Randomized Controlled Study

Objective: To investigate the effect of short-term (3 weeks) whole body vibration training (WBVT) in healthy young people. Materials and Methods: Seventy six healthy individuals (mean age=22.55±1.22 years, 41 females and 35 males) were included in the study. Participants were randomly divided into two groups as WBVT group (n=41) and control group (n=35). WBVT, consisting of 14 exercises for the trunk and lower extremities, was applied to the WBVT group 3 times a week for 3 weeks. The control group did not receive any training. Flexibility, lower extremity endurance, trunk endurance and dynamic balance respectively; measured with sit and reach test, sit and stand test, Biering Sorensen tests, lateral bridge and shuttle, Y balance test. All measurements were made at baseline and at the end of the 3rd week. Results: After 3 weeks, in WBVT group, curl up test (p=0.023), chair stand test (p=0.015) and Y balance test were perfomed on right anterior (p=0.003), right posteromedial (p=0.001), right posterolateral (p=0.001), left anterior (p=0.001), left posterolateral (p=0.000), and left posteromedial (p=0.000) aspects were significant. In the control group, the results in the right anterior (p=0.019) and left anterior (p=0.025) aspects of the Y balance test were significant. When the delta values were compared, the difference in the right (p=0.018) and left (p=0.006) posterolateral directions of the Y balance test; it was significant in favor of the WBVT group. Conclusion: It was observed that short-term whole body vibration training had positive effects on trunk flexor endurance and dynamic balance in healthy young people. New insights into the use of musculoskeletal rehabilitation and sports training programs can be provided by WBVT. Further studies are needed to examine the effectiveness of whole-body vibration training by comparing different loads, volumes and types.

Effect of whole-body vibration training on the recovery of lower limb function in people with stroke: a systematic review and meta-analysis

Purpose The purpose of this meta-analysis was to systematically evaluate the effects of whole-body vibration training (WBVT) on the recovery of lower limb function in people with stroke. Methods The literature search was made in the electronic databases PubMed, Web of Science, Scopus and Embase electronic databases. Only randomized controlled trials were included. Data extraction, quality assessment and meta-analysis were performed. The search was conducted on September 01, 2022. The data analysis software was RevMan 5.3. Results A total of 13 RCTs were included, including 687 patients. The results showed that compared with the control group, the overall difference in balance function was statistically significant [MD = 4.23, 95% CI 2.21 ∼ 6.26, p < 0.0001]. There was no significant difference in the evaluation indexes of lower limb motor function, including the TUG, 10MWT, 6MWT, and FMA - LE. The overall difference in lower limb muscle spasticity was statistically significant [MD = −0.53, 95% CI −0.81 ∼ 0.26, p = 0.0001]. Conclusions Compared with the control group, using WBVT treatment has a more obvious effect on the recovery of lower limb function and muscle spasticity, and there is no obvious advantage in motor function recovery. IMPLICATIONS FOR REHABILITATION This Systematic Review and meta-analysis of evidence suggest that whole-body vibration training is effective in the rehabilitation of lower limb function in patients with stroke. Whole body vibration training may be a better choice for improving balance and spasm in people with stroke. Currently it is not known which whole-body vibration training model with vibration intensity, stimulus type and duration is most effective and to design more targeted interventions.

The effect of whole-body vibration training on electromyographic signals in stroke patients

Objective. Was to verify the influence of vibration training on the electromyographic signal of the rectofemoral (RF) and tibialis anterior (TA) muscles in stroke patients. Method. This is clinical trial, with 43 hemiparetic stroke patients, who were randomized into two groups: control (CG, n=19) and intervention (IG, n=24). The instruments used for evaluation were the Mini Mental State Examination, the Fugl-Meyer Evaluation Scale, and surface electromyography (EMG) in maximum voluntary isometric contraction (MVIC) of the RF and TA muscles bilaterally and simultaneously. Whole-body vibration therapy (WBV) (tri-plane vibration platform, a frequency of 50 Hz and 2 mm of amplitude) was used for treatment. The application of the WBV was performed three times a week for 8 consecutive weeks. The statistical analysis used was the independent t test to compare the baseline characteristics of the CG and IG. The Shapiro–Wilk test was applied to verify the normality of the data and subsequently the Wilcoxon test to compare times and the Mann-Whitney test to compare groups. Results. The results show that EMG RMSn activity did not change intra-group nor inter-group. Conclusion. Vibration training did not influence the EMG signal of the RF and TA muscles in stroke patients.

Effects of Whole-Body Vibration Training with Different Body Positions and Amplitudes on Lower Limb Muscle Activity in Middle-Aged and Older Women

PurposeThe present study was designed to investigate the electromyographic (EMG) response in leg muscles to whole-body vibration while using different body positions and vibration amplitudes.Methods:An experimental study with repeated measures design involved a group of community-dwelling middle-aged and older women (n = 15; mean age=60.8 ± 4.18 years). Muscle activity of the gluteus maximus (GM), rectus femoris (RF), vastus medialis (VM), vastus lateralis (VL), biceps femoris (BF), and gastrocnemius (GS) was measured by surface electromyography, which participants were performing three different body positions during three WBV amplitudes. The body positions included static semi-squat, static semi-squat with elastic band loading, and dynamic semi-squat. Vibration stimuli tested were 0 mm, 2 mm, and 4 mm amplitude and 30 Hz frequencies. And the maximum accelerations produced by vibration stimuli with amplitudes of 2 mm and 4 mm are approximately 1.83 g and 3.17 g.Results:Significantly greater muscle activity was recorded in VL, BF, and GS. When WBV was applied to training, compared with the same training without WBV (P < .05). There were significant main effects of body positions on EMGrms for the GM, RF, and VM (P < .05). Compared to static semi-squat, static semi-squat with elastic band significantly increased the EMGrms of GM, and dynamic semi-squat significantly increased the EMGrms of GM, RF and VM (P < .05). And there were significant main effects of amplitudes on EMGrms for the GM, RF, and VM (P < .05). The EMGrms of the VL, BF, and GS at 4 mm were significantly higher than 0 mm, and the EMGrms of the VL and BF at 4 mm were significantly higher than 2 mm. There was no significant body interaction between body positions and amplitudes (P > .05).Conclusions:The EMG amplitudes of most leg muscles tested were significantly greater during WBV exposure than in the no-WBV condition. The dynamic semi-squat 4 mm whole-body vibration training is recommended for middle-aged and older women to improve lower limb muscle strength and function.

Effects of whole-body vibration training on lower limb motor function and neural plasticity in patients with stroke: protocol for a randomised controlled clinical trial

IntroductionLower limb motor dysfunction is common in patients with stroke, and usually caused by brain neural connectivity disorder. Previous studies have shown that the whole-body vibration training (WBVT) significantly improves...