scholarly journals The neuromuscular responses in patients with Parkinson’s disease under different conditions during whole-body vibration training

2022 ◽  
Vol 22 (1) ◽  
Author(s):  
Chia-Ming Chang ◽  
Chon-Haw Tsai ◽  
Ming-Kuei Lu ◽  
Hsin-Chun Tseng ◽  
Grace Lu ◽  
...  

Abstract Background Whole-body vibration (WBV) training can provoke reactive muscle response and thus exert beneficial effects in various neurological patients. This study aimed to investigate the muscles activation and acceleration transmissibility of the lower extremity to try to understand the neuromuscular control in the Parkinson’s disease (PD) patients under different conditions of the WBV training, including position and frequency. Methods Sixteen PD patients and sixteen controls were enrolled. Each of them would receive two WBV training sessions with 3 and 20 Hz mechanical vibration in separated days. In each session, they were asked to stand on the WBV machine with straight and then bended knee joint positions, while the vibration stimulation was delivered or not. The electromyographic (EMG) signals and the segmental acceleration from the lower extremity were recorded and processed. The amplitude, co-contraction indexes (CCI), and normalized median frequency slope (NMFS) from the EMG signals, and the acceleration transmissibility were calculated. Results The results showed larger rectus femoris (RF) amplitudes under 3 Hz vibration than those in 20 Hz and no vibration conditions; larger tibialis anterior (TA) in 20 Hz than in no vibration; larger gastrocnemius (GAS) in 20 Hz than in 3 Hz and no vibration. These results indicated that different vibration frequencies mainly induced reactive responses in different muscles, by showing higher activation of the knee extensors in 3 Hz and of the lower leg muscles in 20 Hz condition, respectively. Comparing between groups, the PD patients reacted to the WBV stimulation by showing larger muscle activations in hamstring (HAM), TA and GAS, and smaller CCI in thigh than those in the controls. In bended knee, it demonstrated a higher RF amplitude and a steeper NMFS but smaller HAM activations than in straight knee position. The higher acceleration transmissibility was found in the control group, in the straight knee position and in the 3 Hz vibration conditions. Conclusion The PD patients demonstrated altered neuromuscular control compared with the controls in responding to the WBV stimulations, with generally higher EMG amplitude of lower extremity muscles. For designing WBV strengthening protocol in the PD population, the 3 Hz with straight or flexed knee protocol was recommended to recruit more thigh muscles; the bended knee position with 20 Hz vibration was for the shank muscles.

Author(s):  
Eduardo Guadarrama-Molina ◽  
Carlos Enrique Barrón-Gámez ◽  
Ingrid Estrada-Bellmann ◽  
Jesús D. Meléndez-Flores ◽  
Paola Ramírez-Castañeda ◽  
...  

2014 ◽  
Vol 2014 ◽  
pp. 1-9 ◽  
Author(s):  
Heiko Gaßner ◽  
Annette Janzen ◽  
Ansgar Schwirtz ◽  
Petra Jansen

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.


2017 ◽  
Vol 26 (5) ◽  
pp. 339-346 ◽  
Author(s):  
Noureddin Nakhostin Ansari ◽  
Soofia Naghdi ◽  
Hadi Karimi-Zarchi ◽  
Zahra Fakhari ◽  
Scott Hasson

Context:Whole-body vibration (WBV) is a type of weight-bearing exercise used in the field of sport and rehabilitation. There is no study on the effects of WBV on muscle recovery after a fatiguing activity.Objective:To determine the effects of a single WBV session on lower-extremity fatigue.Design:Randomized controlled pilot study.Setting:University Physiotherapy Clinic.Subjects:A total of 13 healthy young men volunteered to participate in this study. Subjects were randomly assigned into the WBV group (n = 7, mean age: 21 y) or control group (CG; n = 6, mean age: 20 y).Intervention:Subjects in the WBV group participated in a single-session WBV (30 Hz, amplitude 4 mm, 2 min) after lower-extremity fatigue.Main Outcome Measures:Peak force of quadriceps muscle, single leg hop test, and Y-test were measured before inducing muscle fatigue (T0), immediately after completing the fatigue protocol (T1), after WBV (T2), and 15 min following the application of WBV (T3). The same method was applied in the CG while the WBV machine was turned off.Results:Repeated-measure ANOVA revealed no significant differences between groups in any of the outcomes.Conclusions:The findings indicated that WBV was not effective in the recovery of lower-extremity fatigue in healthy young men.


2016 ◽  
Vol 2016 ◽  
pp. 1-7 ◽  
Author(s):  
Oliver Kaut ◽  
Daniel Brenig ◽  
Milena Marek ◽  
Niels Allert ◽  
Ullrich Wüllner

Background.Postural instability in Parkinson’s disease (PD) increases the risk of falls and is not improved by pharmacological therapy.Objective.We performed a double-blind, randomized sham-controlled study to test the effects of stochastic resonance (whole body vibration) therapy on postural stability in PD.Methods.Fifty-six PD participants were allocated to either experimental or sham groups. The experimental group received four series of vibration over eight days, with each series consisting of six stimulus trains of 60-second duration using a randomized whole body vibration. Participants allocated to the control group received a sham treatment.Results.Within-group analysis revealed that postural stability in the experimental group improved by 17.5% (p=0.005) comparing experimental and sham groups. The between-group analysis of change after treatment comparing both groups also showed a significant improvement of postural stability (p=0.03). Only in the within-group analysis several items were improved after Bonferroni correction, too, rigor 41.6% (p=0.001), bradykinesia 23.7% (p=0.001), tremor 30.8% (p=0.006), andUPDRSIIIsum score 23.9% (p=0.000), but did not reach the level of significance in the between-group analysis.Conclusions.Stochastic resonance therapy significantly enhanced postural stability even in individuals with increased risk of falling. Thus it offers a potential supplementation to canonical treatments of PD.


2020 ◽  
pp. 1-12
Author(s):  
Chuan He ◽  
Caixia Su ◽  
Wentong Zhang ◽  
Qi Wan

Abstract Objective: To review the effects of whole body vibration for patients with Parkinson’s disease. Design: Randomized clinical trials comparing whole body vibration with no vibration or conventional physical therapy for patients with Parkinson’s disease were searched up to July 31, 2019. Results: Seven studies with 196 patients were included for quantitative analysis. No significant difference was found between groups in motor score of unified Parkinson’s disease rating scale (UPDRS-III) (WMD [weighted mean difference] = −1.75, 95% CI, −5.40 to 1.90, I2 = 45.8%), functional reach test (SMD [standardized mean difference] = 0.21, 95% CI, −0.29 to 0.71; I2 = 0%), and other balance tests (including Berg balance test and Tinetti score) (SMD = 0.39, 95% CI, −0.01 to 0.80; I2 = 0%). No statistical difference was detected in walking velocity as well (WMD = −0.05, 95% CI, −0.17 to 0.06; I2 = 0%). In contrast, the pooled analysis from four studies on the Time Up and Go test showed favorable results for whole body vibration (WMD = −1.59, 95% CI, −2.90 to −0.28, I2 = 0%). Conclusion: Whole body vibration may not be beneficial over placebo or conventional physical therapy in overall motor function, balance, and walking velocity in patients with Parkinson’s disease. However, it might have positive effects on sit to stand transitions or turning.


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