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Han YG, Kim MK. Effectiveness of whole-body vibration in patients with cerebral palsy: A systematic review and meta-analysis. Medicine (Baltimore) 2023; 102:e36441. [PMID: 38050249 PMCID: PMC10695530 DOI: 10.1097/md.0000000000036441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Accepted: 11/10/2023] [Indexed: 12/06/2023] Open
Abstract
BACKGROUND This study examined the effects of systemic vibration exercises on cerebral palsy patients. METHODS Literature published in Cumulated Index to Nursing and Allied Health Literature (CINAHL), Cochrane library, Embase, Physiotherapy Evidence Database (PEDro), and PubMed was reviewed. A total of 2978 studies were initially retrieved. After further reading of the full texts 17 articles were finally included. A quality assessment of the included studies was conducted using the risk of bias (RoB) 2.0, and the Funnel plot and the Egger test were conducted to confirm the publication bias. Subgroup analysis was carried out according to the dependent variables, the international classification of functioning, disability, and health (ICF), frequency, treatment period and age. RESULTS The overall effect size of homogeneity was 0.474 (CI = 0.148-0.801). The analysis of the dependent variables showed the following order of the effect size: balance, muscle strength, spasticity, bone density, range of motion of the joint, gait function, and motor function. In the ICF classification, the effect size was observed to follow the order of body structure and function, activity, and participation. The effect size in the intervention according to the treatment period showed the following order: 7 to 12 weeks, 1 to 6 weeks, and 14 to 24 weeks. The age-dependent classification showed the following order in the effect size: school age, adolescent and adult, and infant and school age. CONCLUSIONS Systemic vibration is the most effective intervention to improve the balance and gait in patients with cerebral palsy and improve the body structure and function according to the ICF.
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Affiliation(s)
- Yong-Gu Han
- Department of Physical Therapy, Daegu University Medical Clinic, Republic of Korea, Republic of Korea
| | - Myoung-Kwon Kim
- Department of Physical Therapy, College of Rehabilitation Sciences, Daegu University, Jillyang, Gyeongsan, Gyeongbuk, Republic of Korea
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Hirabayashi R, Edama M, Takeda M, Yamada Y, Yokota H, Sekine C, Onishi H. Participant attention on the intervention target during repetitive passive movement improved spinal reciprocal inhibition enhancement and joint movement function. Eur J Med Res 2023; 28:428. [PMID: 37828546 PMCID: PMC10571356 DOI: 10.1186/s40001-023-01418-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2022] [Accepted: 09/30/2023] [Indexed: 10/14/2023] Open
Abstract
This study aimed to evaluate the effects of the participant's attention target during repetitive passive movement (RPM) intervention on reciprocal inhibition (RI) and joint movement function. Twenty healthy adults participated in two experiments involving four attention conditions [control (forward attention with no RPM), forward attention (during RPM), monitor attention (monitor counting task during RPM), ankle joint attention (ankle movement counting task during RPM)] during 10-min RPM interventions on the ankle joint. Counting tasks were included to ensure the participant's attention remained on the target during the intervention. In Experiment 1, RI was measured before, immediately after, and 5, 10, 15, 20, and 30 min after the RPM intervention. In Experiment 2, we evaluated ankle joint movement function at the same time points before and after RPM intervention. The maximum ankle dorsiflexion movement (from 30° plantar flexion to 10° dorsiflexion) was measured, reflecting RI. In Experiment 1, the RI function reciprocal Ia inhibition was enhanced for 10 min after RPM under all attention conditions (excluding the control condition. D1 inhibition was enhanced for 20 min after RPM in the forward and monitor attention conditions and 30 min after RPM in the ankle joint attention condition. In Experiment 2, the joint movement function decreased under the forward and monitor attention conditions but improved under the ankle joint attention condition. This study is the first to demonstrate that the participant's attention target affected the intervention effect of the RI enhancement method, which has implications for improving the intervention effect of rehabilitation.
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Affiliation(s)
- Ryo Hirabayashi
- Institute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, 1398 Shimami-cho, Kita-ku, , Niigata-shi, Niigata, 950-3198, Japan.
| | - Mutsuaki Edama
- Institute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, 1398 Shimami-cho, Kita-ku, , Niigata-shi, Niigata, 950-3198, Japan
| | - Mai Takeda
- Institute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, 1398 Shimami-cho, Kita-ku, , Niigata-shi, Niigata, 950-3198, Japan
| | - Yuki Yamada
- Institute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, 1398 Shimami-cho, Kita-ku, , Niigata-shi, Niigata, 950-3198, Japan
| | - Hirotake Yokota
- Institute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, 1398 Shimami-cho, Kita-ku, , Niigata-shi, Niigata, 950-3198, Japan
| | - Chie Sekine
- Institute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, 1398 Shimami-cho, Kita-ku, , Niigata-shi, Niigata, 950-3198, Japan
| | - Hideaki Onishi
- Institute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, 1398 Shimami-cho, Kita-ku, , Niigata-shi, Niigata, 950-3198, Japan
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Ferreira RM, Silva R, Vigário P, Martins PN, Casanova F, Fernandes RJ, Sampaio AR. The Effects of Massage Guns on Performance and Recovery: A Systematic Review. J Funct Morphol Kinesiol 2023; 8:138. [PMID: 37754971 PMCID: PMC10532323 DOI: 10.3390/jfmk8030138] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Revised: 08/31/2023] [Accepted: 09/14/2023] [Indexed: 09/28/2023] Open
Abstract
The use of massage guns has become increasingly popular in recent years. Although their use is more and more common, both in a clinical and sports context, there is still little information to guide the practitioners. This systematic review aimed to determine the effects of massage guns in healthy and unhealthy populations as pre- and post-activity or part of a treatment. Data sources used were PubMed, PEDro, Scopus, SPORTDiscus, Web of Science and Google Scholar, and the study eligibility criteria were based on "healthy and unhealthy individuals", "massage guns", "pre-activity, post-activity or part of a treatment" and "randomized and non-randomized studies" (P.I.C.O.S.). Initially, 281 records were screened, but only 11 could be included. Ten had a moderate risk of bias and one a high risk of bias. Massage guns could be effective in improving iliopsoas, hamstrings, triceps suralis and the posterior chain muscles' flexibility. In strength, balance, acceleration, agility and explosive activities, it either did not have improvements or it even showed a decrease in performance. In the recovery-related outcomes, massage guns were shown to be cost-effective instruments for stiffness reduction, range of motion and strength improvements after a fatigue protocol. No differences were found in contraction time, rating of perceived exertion or lactate concentration. Massage guns can help to improve short-term range of motion, flexibility and recovery-related outcomes, but their use in strength, balance, acceleration, agility and explosive activities is not recommended.
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Affiliation(s)
- Ricardo Maia Ferreira
- Polytechnic Institute of Maia, N2i, Physical Fitness, Sports and Exercise Department, Avenida Carlos de Oliveira Campos, 4475-690 Maia, Portugal; (R.M.F.); (R.S.); (P.V.); (P.N.M.)
- Polytechnic Institute of Coimbra, Coimbra Health School, Physioterapy Department, Rua 5 de Outubro, São Martinho do Bispo, 3046-854 Coimbra, Portugal
- Polytechnic Institute of Castelo Branco, Dr. Lopes Dias Health School, Physioterapy Department, Avenida do Empresário, 6000-767 Castelo Branco, Portugal
- Sport Physical Activity and Health Research & Innovation Center (SPRINT), 4960-320 Melgaço, Portugal
| | - Rafael Silva
- Polytechnic Institute of Maia, N2i, Physical Fitness, Sports and Exercise Department, Avenida Carlos de Oliveira Campos, 4475-690 Maia, Portugal; (R.M.F.); (R.S.); (P.V.); (P.N.M.)
| | - Pedro Vigário
- Polytechnic Institute of Maia, N2i, Physical Fitness, Sports and Exercise Department, Avenida Carlos de Oliveira Campos, 4475-690 Maia, Portugal; (R.M.F.); (R.S.); (P.V.); (P.N.M.)
| | - Pedro Nunes Martins
- Polytechnic Institute of Maia, N2i, Physical Fitness, Sports and Exercise Department, Avenida Carlos de Oliveira Campos, 4475-690 Maia, Portugal; (R.M.F.); (R.S.); (P.V.); (P.N.M.)
| | - Filipe Casanova
- Center for Research in Sport, Physical Education, Exercise and Health (CIDEFES), Lusófona University, 1749-024 Lisboa, Portugal;
| | - Ricardo Jorge Fernandes
- Faculty of Sport of the University of Porto, Center for Research, Training, Innovation and Intervention in Sport (CIFI2D), Porto Biomechanics Laboratory (LABIOMEP), Rua Dr. Plácido da Costa, 4200-450 Porto, Portugal;
| | - António Rodrigues Sampaio
- Polytechnic Institute of Maia, N2i, Physical Fitness, Sports and Exercise Department, Avenida Carlos de Oliveira Campos, 4475-690 Maia, Portugal; (R.M.F.); (R.S.); (P.V.); (P.N.M.)
- Faculty of Sport of the University of Porto, Center for Research, Training, Innovation and Intervention in Sport (CIFI2D), Porto Biomechanics Laboratory (LABIOMEP), Rua Dr. Plácido da Costa, 4200-450 Porto, Portugal;
- Sports Department, Avenida Carlos de Oliveira Campos, University of Maia, 4475-690 Maia, Portugal
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Liu P, Li Y, Xiao Y, Li D, Liu L, Ma Y, Zheng W. Effects of whole-body vibration training with different frequencies on the balance ability of the older adults: a network meta-analysis. Front Physiol 2023; 14:1153163. [PMID: 37123276 PMCID: PMC10140584 DOI: 10.3389/fphys.2023.1153163] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Accepted: 04/03/2023] [Indexed: 05/02/2023] Open
Abstract
Purpose: To compare the effects of whole-body vibration training (WBVT) with different frequencies on the balance ability of older adults. Methods: Randomized controlled trials (RCTs) on the WBVT interventions on balance ability in older adults were searched through PubMed, Web of Science, The Cochrane Library, ProQuest, Embase, Opengrey, China National Knowledge Infrastructure (CNKI), Wanfang, and China Science and Technology Journal Database (CSTJ) databases from the establishment of the database to August 2022, and all literature that met the PICOS (Participants, Intervention, Comparison, Outcomes, Study design) criteria were enrolled. Two reviewers screened and assessed the methodological quality of the included literature according to the physiotherapy evidence database (PEDro) scale criteria. Statistical analysis was performed using Stata 14.0 software after data extraction. Results: Twenty-five RCTs with a total of 1267 subjects were finally included. The results of the pairwise comparison of the Network Meta-analysis showed that the Timed Up and Go Test (TUGT) values of Low-frequency whole-body vibration training (LF-WBVT) was lower than the placebo and traditional rehabilitation groups, and the difference was statistically significant [WMD = -1.37, 95% CI (-2.53, -0.20)] [WMD = -1.84, 95% CI(-3.17,-0.51)]. The Five-repetition Sit-to-Stand Test (5STS) values of LF-WBVT, Medium-frequency whole-body vibration training (MF-WBVT), and High-frequency whole-body vibration training (HF-WBVT) were lower than the placebo and traditional rehabilitation groups, but none of them were statistically significant. In addition, the TUGT and 5STS values of HF-WBVT had a tendency to be lower than those of LF-WBVT and MF-WBVT, but neither of them was statistically different. The cumulative probability ranking results of both TUGT and 5STS showed that HF-WBVT was the best protocol. Conclusion: Current evidence shows that HF-WBVT may be the best protocol for improving balance in older adults. Due to the study's limitations, the conclusion obtained in this study still needs to be further confirmed by more high-quality studies. Systematic Review Registration: [https://www.crd.york.ac.uk/PROSPERO/], identifier [CRD42021250405].
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Affiliation(s)
- Peirong Liu
- Key Laboratory of Sports Engineering of General Administration of Sports of China, Research Center of Sports Equipment Engineering Technology of Hubei Province, Wuhan Sports University, Wuhan, China
| | - Yongjie Li
- Department of Rehabilitation Medicine, Beijing Jishuitan Hospital Guizhou Hospital, Guiyang, China
| | - Yajun Xiao
- Key Laboratory of Sports Engineering of General Administration of Sports of China, Research Center of Sports Equipment Engineering Technology of Hubei Province, Wuhan Sports University, Wuhan, China
| | - Duo Li
- Key Laboratory of Sports Engineering of General Administration of Sports of China, Research Center of Sports Equipment Engineering Technology of Hubei Province, Wuhan Sports University, Wuhan, China
| | - Lin Liu
- Key Laboratory of Sports Engineering of General Administration of Sports of China, Research Center of Sports Equipment Engineering Technology of Hubei Province, Wuhan Sports University, Wuhan, China
| | - Yong Ma
- Key Laboratory of Sports Engineering of General Administration of Sports of China, Research Center of Sports Equipment Engineering Technology of Hubei Province, Wuhan Sports University, Wuhan, China
| | - Weitao Zheng
- Key Laboratory of Sports Engineering of General Administration of Sports of China, Research Center of Sports Equipment Engineering Technology of Hubei Province, Wuhan Sports University, Wuhan, China
- *Correspondence: Weitao Zheng,
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Arenales Arauz YL, van der Zee EA, Kamsma YPT, van Heuvelen MJG. Short-term effects of side-alternating Whole-Body Vibration on cognitive function of young adults. PLoS One 2023; 18:e0280063. [PMID: 36634088 PMCID: PMC9836316 DOI: 10.1371/journal.pone.0280063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Accepted: 12/20/2022] [Indexed: 01/13/2023] Open
Abstract
Recent research in rodents and humans revealed that Whole-Body Vibration (WBV) is beneficial for cognitive functions. However, the optimal WBV conditions are not established: contrary to vertical WBV, side-alternating WBV was not investigated before. The present study investigated the short-term effects of side-alternating WBV in standing and sitting posture on specific cognitive function of young adults. We used a balanced cross-over design. Sixty healthy young adults (mean age 21.7 ± 2.0 years, 72% female) participated. They were exposed to three bouts of two-minute side-alternating WBV (frequency 27 Hz) and three control conditions in two different sessions. In one session a sitting posture was used and in the other session a standing (semi-squat) posture. After each condition selective attention and inhibition was measured with the incongruent condition of the Stroop Color-Word Interference Test. WBV significantly (p = 0.026) improved selective attention and inhibition in the sitting posture, but not in the standing posture. The sitting posture was perceived as more comfortable, joyous and less exhaustive as compared to the standing posture. This study demonstrated that side-alternating WBV in sitting posture improves selective attention and inhibition in healthy young adults. This indicates that posture moderates the cognitive effect of WBV, although the effects are still small. Future studies should focus on the working mechanisms and further optimization of settings, especially in individuals who are unable to perform active exercise.
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Affiliation(s)
- Y. Laurisa Arenales Arauz
- Department of Human Movement Sciences, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
- Human Physiology and Sports Physiotherapy Research Group, Vrije Universiteit Brussel, Brussels, Belgium
| | - Eddy A. van der Zee
- Molecular Neurobiology, Groningen Institute for Evolutionary Life Sciences (GELIFES), University of Groningen, Groningen, The Netherlands
| | - Ype P. T. Kamsma
- Department of Human Movement Sciences, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Marieke J. G. van Heuvelen
- Department of Human Movement Sciences, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
- * E-mail:
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Potential of Whole-Body Vibration in Parkinson’s Disease: A Systematic Review and Meta-Analysis of Human and Animal Studies. BIOLOGY 2022; 11:biology11081238. [PMID: 36009865 PMCID: PMC9405106 DOI: 10.3390/biology11081238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 08/13/2022] [Accepted: 08/17/2022] [Indexed: 11/25/2022]
Abstract
Simple Summary Exercise has shown to have a positive impact on both motor and non-motor functions in Parkinson’s Disease patients. However, particularly in later stages of the disease, reduced cognitive function and motor capacity may lead to an inability to stay physically active. Therefore, alternative strategies for patients with Parkinson’s Disease are necessary to minimize burden for patients, their families and public health care. Whole-Body Vibration could be such an alternative. Whole-Body Vibration is an exercise or treatment method in which subjects are exposed to a mechanical vibration while sitting, standing or exercising on a vibrating platform. Whole-Body Vibration is currently used for physiotherapy, sports and rehabilitation purposes. Whole-Body Vibration treatment is interesting because it affects both the body and brain. The potential of Whole-Body Vibration for, specifically, Parkinson’s Disease patients should be clarified for further application. For this purpose, we conducted an extensive systematic review of the articles investigating the effects of Whole-Body Vibrations (1) on animals and humans with Parkinson’s Disease and (2) on neuropathological Parkinson’s Disease mechanisms. The results show some potential of Whole-Body Vibration for Parkinson’s Disease patients. The recommendations provided by this review can be used by researchers and rehabilitative practitioners implementing Whole-Body Vibration as a treatment for Parkinson’s Disease patients. Abstract (1) Background: When the severity of Parkinson’s Disease (PD) increases, patients often have difficulties in performing exercises. Whole-Body Vibration (WBV) may be a suitable alternative. This systematic review aims to clarify if WBV shows potential as rehabilitative therapy for PD patients. (2) Methods: We searched several databases for controlled trials investigating the effects of WBV (1) on PD populations and (2) PD neuropathological mechanisms. We included both human and animal studies and performed meta-analyses. (3) Results: The studies on PD populations (14 studies) show an overall significant, but small, effect in favor of WBV (Hedges’ g = 0.28), for which the effects on stability (Hedges’ g = 0.39) and balance (Hedges’ g = 0.30) are the most prominent. The studies on the neuropathological mechanisms (18 studies) show WBV effects on neuroinflammation (Hedges’ g = –1.12) and several specific WBV effects on neurotransmitter systems, growth factors, neurogenesis, synaptic plasticity and oxidative stress. (4) Conclusions: The effects of WBV on human PD patients remains inconclusive. Nevertheless, WBV protocols with sufficient duration (≥3 weeks), session frequency (≥3 sessions/week) and vibration frequency (≥20 Hz) show potential as a treatment method, especially for motor function. The potential of WBV for PD patients is confirmed by the effects on the neuropathological mechanisms in mostly non-PD populations. We recommend high-quality future studies on both PD patients and PD mouse models to optimize WBV protocols and to examine the neuropathological mechanisms in PD populations.
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de Araújo AXP, de Araújo MDGR, Mendes Fontes LA, Souto Braz RR, Sañudo B, Thaiar R, de Melo Marinho PÉ. Do two whole-body vibration amplitudes improve postural balance, gait speed, muscle strength, and functional mobility in sedentary older women? A crossover randomized controlled trial. J Bodyw Mov Ther 2022; 32:143-148. [DOI: 10.1016/j.jbmt.2022.05.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 02/15/2022] [Accepted: 05/15/2022] [Indexed: 11/24/2022]
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Ahmed Burq HSI, Karimi H, Ahmad A, Gilani SA, Hanif A. Effect of whole-body vibration on obstacle clearance and stair negotiation time in chronic stroke patients; A randomized controlled trial. J Bodyw Mov Ther 2021; 27:698-704. [PMID: 34391309 DOI: 10.1016/j.jbmt.2021.05.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2020] [Revised: 03/19/2021] [Accepted: 05/08/2021] [Indexed: 10/21/2022]
Abstract
OBJECTIVE To assess the effect of Whole-Body Vibration (WBV) and Routine Physiotherapy (RP) on obstacle crossing and stair negotiation time in chronic stroke patients. METHODS The current study was randomized, parallel-group, assessor-blinded, clinical trial conducted in Physiotherapy Department of Lahore General Hospital, involving 64 patients with chronic stroke. Patients were randomly allocated to 2 groups, i.e., the WBV group (n = 32) and the RP group (n = 32). The WBV group was given additional twelve sessions of vibration therapy (amplitude of 3 mm and frequency of 20 Hz), 6 days/week for 2 weeks. The outcome measures were change in score of height and depth of obstacles cleared, i.e., 6, 8, 10 & 12 inches height and 6, 8, 10 & 12 inches depth and stair negotiation time, i.e., Stair-Climb Test. Chi square test, Independent sample t-test and Paired sample t-test were used to analyze the data. RESULTS Results show that higher number of patients improved in crossing the maximum height and maximum depth of obstacles in the WBV group but improvement was significant only in height, i.e., (p < 0.05). In the WBV group, Stair Negotiation Time decreased significantly as compared to the RP group, i.e., (p < 0.05). CONCLUSIONS The present study concluded that both study groups, i.e., RP and WBV, improved despite better results for the latter. Speed of stair climbing and capacity to cross obstacles improved with the WBV therapy in chronic stroke survivors. TRIAL REGISTRATION IRCT, IRCT20190328043131N1. Registered 03 august 2019 - Retrospectively registered, https://www.irct.ir/user/trial/38832/view.
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Affiliation(s)
- Hafiz Syed Ijaz Ahmed Burq
- University Institute of Physical Therapy, Faculty of Allied Health Sciences, University of Lahore, Lahore, Pakistan.
| | - Hossein Karimi
- University Institute of Physical Therapy, Faculty of Allied Health Sciences, University of Lahore, Lahore, Pakistan.
| | - Ashfaq Ahmad
- University Institute of Physical Therapy, Faculty of Allied Health Sciences, University of Lahore, Lahore, Pakistan.
| | - Syed Amir Gilani
- Dean Faculty of Allied Health Sciences, Faculty of Allied Health Sciences, University of Lahore, Lahore, Pakistan.
| | - Asif Hanif
- University Institute of Public Health, Faculty of Allied Health Sciences, University of Lahore, Lahore, Pakistan.
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Barss TS, Collins DF, Miller D, Pujari AN. Indirect Vibration of the Upper Limbs Alters Transmission Along Spinal but Not Corticospinal Pathways. Front Hum Neurosci 2021; 15:617669. [PMID: 34079443 PMCID: PMC8165249 DOI: 10.3389/fnhum.2021.617669] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Accepted: 04/19/2021] [Indexed: 01/15/2023] Open
Abstract
The use of upper limb vibration (ULV) during exercise and rehabilitation continues to gain popularity as a modality to improve function and performance. Currently, a lack of knowledge of the pathways being altered during ULV limits its effective implementation. Therefore, the aim of this study was to investigate whether indirect ULV modulates transmission along spinal and corticospinal pathways that control the human forearm. All measures were assessed under CONTROL (no vibration) and ULV (30 Hz; 0.4 mm displacement) conditions while participants maintained a small contraction of the right flexor carpi radialis (FCR) muscle. To assess spinal pathways, Hoffmann reflexes (H-reflexes) elicited by stimulation of the median nerve were recorded from FCR with motor response (M-wave) amplitudes matched between conditions. An H-reflex conditioning paradigm was also used to assess changes in presynaptic inhibition by stimulating the superficial radial (SR) nerve (5 pulses at 300Hz) 37 ms prior to median nerve stimulation. Cutaneous reflexes in FCR elicited by stimulation of the SR nerve at the wrist were also recorded. To assess corticospinal pathways, motor evoked potentials (MEPs) elicited by transcranial magnetic stimulation of the contralateral motor cortex were recorded from the right FCR and biceps brachii (BB). ULV significantly reduced H-reflex amplitude by 15.7% for both conditioned and unconditioned reflexes (24.0 ± 15.7 vs. 18.4 ± 11.2% M max ; p < 0.05). Middle latency cutaneous reflexes were also significantly reduced by 20.0% from CONTROL (-1.50 ± 2.1% Mmax) to ULV (-1.73 ± 2.2% Mmax; p < 0.05). There was no significant effect of ULV on MEP amplitude (p > 0.05). Therefore, ULV inhibits cutaneous and H-reflex transmission without influencing corticospinal excitability of the forearm flexors suggesting increased presynaptic inhibition of afferent transmission as a likely mechanism. A general increase in inhibition of spinal pathways with ULV may have important implications for improving rehabilitation for individuals with spasticity (SCI, stroke, MS, etc.).
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Affiliation(s)
- Trevor S. Barss
- Human Neurophysiology Laboratory, Faculty of Kinesiology, Sport, and Recreation, University of Alberta, Edmonton, AB, Canada
- Neuroscience and Mental Health Institute, University of Alberta, Edmonton, AB, Canada
| | - David F. Collins
- Human Neurophysiology Laboratory, Faculty of Kinesiology, Sport, and Recreation, University of Alberta, Edmonton, AB, Canada
- Neuroscience and Mental Health Institute, University of Alberta, Edmonton, AB, Canada
| | - Dylan Miller
- Human Neurophysiology Laboratory, Faculty of Kinesiology, Sport, and Recreation, University of Alberta, Edmonton, AB, Canada
- Neuroscience and Mental Health Institute, University of Alberta, Edmonton, AB, Canada
| | - Amit N. Pujari
- School of Engineering and Computer Science, University of Hertfordshire, Hatfield, United Kingdom
- Biomedical Engineering Laboratory, School of Engineering, University of Aberdeen, Aberdeen, United Kingdom
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Liang V, Henderson G, Wu J. Neuromuscular response to a single session of whole-body vibration in children with cerebral palsy: A pilot study. Clin Biomech (Bristol, Avon) 2020; 80:105170. [PMID: 32920250 DOI: 10.1016/j.clinbiomech.2020.105170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Revised: 05/25/2020] [Accepted: 08/31/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND Whole-body vibration (WBV) is a relative new intervention paradigm that could reduce spasticity and improve motor function in children with cerebral palsy (CP). We investigated neuromuscular response to a single session of side-alternating WBV with different amplitudes in children with CP. METHODS Ten children with spastic CP aged 7-17 years at GMFCS level I-III participated in this pilot study. Participants received two sessions of side-alternating WBV with the same frequency (20 Hz) but different amplitudes (low-amplitude: 1 mm and high-amplitude: 2 mm). Each session included six sets of 90 s of WBV and 90 s of rest. Before and after each WBV session, we used (a) the modified Ashworth scale to evaluate the spasticity of the participants' leg muscles, (b) a quiet standing task to analyze center-of-pressure (CoP) pattern and postural control, and (c) overground walking trials to assess spatiotemporal gait parameters and joint range-of-motion (RoM). RESULTS Both WBV sessions similarly reduced the spasticity of the ankle plantarflexors, improved long-range correlation of CoP profile during standing, and reduced muscle activity of tibialis anterior during walking. The high-amplitude WBV further increased ankle RoM during walking. CONCLUSIONS This study demonstrates that a single session of WBV with either a low or a high amplitude can reduce spasticity, enhance standing posture, and improve gait patterns in children with CP. It suggests that low-amplitude WBV may induce similar neuromuscular response as high-amplitude WBV in children with spastic CP and can provide positive outcomes for those who are not able to tolerate stronger vibration.
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Affiliation(s)
- Virginia Liang
- Department of Physical Therapy, University of Illinois, Chicago, IL, USA
| | - Gena Henderson
- Department of Kinesiology and Health, Georgia State University, Atlanta, GA, USA
| | - Jianhua Wu
- Department of Kinesiology and Health, Georgia State University, Atlanta, GA, USA; Center for Movement & Rehabilitation Research, Georgia State University, Atlanta, GA, USA.
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Kalc M, Ritzmann R, Strojnik V. Effects of whole-body vibrations on neuromuscular fatigue: a study with sets of different durations. PeerJ 2020; 8:e10388. [PMID: 33282559 PMCID: PMC7690295 DOI: 10.7717/peerj.10388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Accepted: 10/27/2020] [Indexed: 11/20/2022] Open
Abstract
BACKGROUND Whole body vibrations have been used as an exercise modality or as a tool to study neuromuscular integration. There is increasing evidence that longer WBV exposures (up to 10 minutes) induce an acute impairment in neuromuscular function. However, the magnitude and origin of WBV induced fatigue is poorly understood. PURPOSE The study aimed to investigate the magnitude and origin of neuromuscular fatigue induced by half-squat long-exposure whole-body vibration intervention (WBV) with sets of different duration and compare it to non-vibration (SHAM) conditions. METHODS Ten young, recreationally trained adults participated in six fatiguing trials, each consisting of maintaining a squatting position for several sets of the duration of 30, 60 or 180 seconds. The static squatting was superimposed with vibrations (WBV30, WBV60, WBV180) or without vibrations (SHAM30, SHAM60, SHAM180) for a total exercise exposure of 9-minutes in each trial. Maximum voluntary contraction (MVC), level of voluntary activation (%VA), low- (T20) and high-frequency (T100) doublets, low-to-high-frequency fatigue ratio (T20/100) and single twitch peak torque (TWPT) were assessed before, immediately after, then 15 and 30 minutes after each fatiguing protocol. RESULT Inferential statistics using RM ANOVA and post hoc tests revealed statistically significant declines from baseline values in MVC, T20, T100, T20/100 and TWPT in all trials, but not in %VA. No significant differences were found between WBV and SHAM conditions. CONCLUSION Our findings suggest that the origin of fatigue induced by WBV is not significantly different compared to control conditions without vibrations. The lack of significant differences in %VA and the significant decline in other assessed parameters suggest that fatiguing protocols used in this study induced peripheral fatigue of a similar magnitude in all trials.
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Affiliation(s)
- Miloš Kalc
- Faculty of Medicine, Institute of Sports Medicine, University of Maribor, Maribor, Slovenia
- Faculty of Sport, Institute of Kinesiology, University of Ljubljana, Ljubljana, Slovenia
| | - Ramona Ritzmann
- Department of Biomechanics, Praxisklinik Rennbahn AG, Muttenz, Switzerland
| | - Vojko Strojnik
- Faculty of Sport, Institute of Kinesiology, University of Ljubljana, Ljubljana, Slovenia
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Hirabayashi R, Kojima S, Edama M, Onishi H. Activation of the Supplementary Motor Areas Enhances Spinal Reciprocal Inhibition in Healthy Individuals. Brain Sci 2020; 10:brainsci10090587. [PMID: 32847117 PMCID: PMC7565304 DOI: 10.3390/brainsci10090587] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2020] [Revised: 08/14/2020] [Accepted: 08/22/2020] [Indexed: 02/02/2023] Open
Abstract
The supplementary motor area (SMA) may modulate spinal reciprocal inhibition (RI) because the descending input from the SMA is coupled to interneurons in the spinal cord via the reticulospinal tract. Our study aimed to verify whether the anodal transcranial direct current stimulation (anodal-tDCS) of the SMA enhances RI. Two tDCS conditions were used: the anodal stimulation (anodal-tDCS) and sham stimulation (sham-tDCS) conditions. To measure RI, there were two conditions: one with the test stimulus (alone) and the other with the conditioning-test stimulation intervals (CTIs), including 2 ms and 20 ms. RI was calculated at multiple time points: before the tDCS intervention (Pre); at 5 (Int 5) and 10 min; and immediately after (Post 0); and at 5, 10 (Post 10), 15, and 20 min after the intervention. In anodal-tDCS, the amplitude values of H-reflex were significantly reduced for a CTI of 2 ms at Int 5 to Post 0, and a CTI of 20 ms at Int 5 to Pot 10 compared with Pre. Stimulation of the SMA with anodal-tDCS for 15 min activated inhibitory interneurons in RIs by descending input from the reticulospinal tract via cortico–reticulospinal projections. The results showed that 15 min of anodal-tDCS in the SMA enhanced and sustained RI in healthy individuals.
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Krause A, Gollhofer A, Lee K, Freyler K, Becker T, Kurz A, Ritzmann R. Acute whole-body vibration reduces post-activation depression in the triceps surae muscle. Hum Mov Sci 2020; 72:102655. [PMID: 32721374 DOI: 10.1016/j.humov.2020.102655] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Revised: 01/09/2020] [Accepted: 06/20/2020] [Indexed: 01/22/2023]
Abstract
PURPOSE Acute whole-body vibration (WBV) is known to enhance neuromuscular activation. Especially mechanisms which act presynaptically are discussed to be involved in this modulation, but evidence is still limited. Therefore, this study aimed to investigate if 2 min of WBV might impact the premotoneuronal mechanism of post-activation depression (PAD). METHODS PAD in m. soleus was assessed by paired-pulse stimulation in 28 healthy participants prior, 2 min, 4 min and 10 min after 2 min of side-alternating WBV (10 Hz, 2 mm). Methodologies involved electromyography (m. soleus, m. tibialis anterior) and goniometric recordings (ankle, knee joint). H-reflexes were elicited with peripheral nerve stimulation and assessed by means of conditioned H-reflexes (ISI 1 s, Hcond) versus control H-reflexes (ISI10, H). RESULTS Hcond/H was significantly enhanced by +55% (2 min), +32% (4 min) and +35% (10 min) following WBV (P < 0.05). Baseline muscle activity and joint positions were shown to be reliable (Cronbach's α values >0.990) throughout the testing procedure. CONCLUSION Vibratory-induced spinal inhibition is accompanied by diminished PAD at the presynaptic terminals which interconnect the Ia afferents with the α-motoneuron. Functionally, the PAD reduction might explain enhanced motor performance following vibration therapy, but future studies will be needed to verify this assumption.
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Affiliation(s)
- Anne Krause
- Institute of Training and Computer Science in Sport, German Sport University Cologne, Germany, Am Sportpark Müngersdorf 6, 50933 Köln; Department for Sports and Sport Science, University of Freiburg, Germany, Schwarzwaldstraße 175, 79117 Freiburg i.Br
| | - Albert Gollhofer
- Department for Sports and Sport Science, University of Freiburg, Germany, Schwarzwaldstraße 175, 79117 Freiburg i.Br
| | - Kyungsoo Lee
- Department for Sports and Sport Science, University of Freiburg, Germany, Schwarzwaldstraße 175, 79117 Freiburg i.Br
| | - Kathrin Freyler
- Department for Sports and Sport Science, University of Freiburg, Germany, Schwarzwaldstraße 175, 79117 Freiburg i.Br
| | - Tobias Becker
- Department for Sports and Sport Science, University of Freiburg, Germany, Schwarzwaldstraße 175, 79117 Freiburg i.Br
| | - Alexander Kurz
- Department for Sports and Sport Science, University of Freiburg, Germany, Schwarzwaldstraße 175, 79117 Freiburg i.Br.; Bernstein Center Freiburg, University of Freiburg, Germany, Hansastraße 9a, 79104 Freiburg i.Br
| | - Ramona Ritzmann
- Department for Sports and Sport Science, University of Freiburg, Germany, Schwarzwaldstraße 175, 79117 Freiburg i.Br.; Department of Biomechanics, Rennbahnklinik, Switzerland, Kriegackerstrasse 100, 4132, Muttenz, Switzerland.
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Hirabayashi R, Edama M, Kojima S, Miyaguchi S, Onishi H. Enhancement of spinal reciprocal inhibition depends on the movement speed and range of repetitive passive movement. Eur J Neurosci 2020; 52:3929-3943. [DOI: 10.1111/ejn.14855] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Revised: 05/22/2020] [Accepted: 05/27/2020] [Indexed: 11/30/2022]
Affiliation(s)
- Ryo Hirabayashi
- Institute for Human Movement and Medical Sciences Niigata University of Health and Welfare Niigata Japan
| | - Mutsuaki Edama
- Institute for Human Movement and Medical Sciences Niigata University of Health and Welfare Niigata Japan
| | - Sho Kojima
- Institute for Human Movement and Medical Sciences Niigata University of Health and Welfare Niigata Japan
| | - Shota Miyaguchi
- Institute for Human Movement and Medical Sciences Niigata University of Health and Welfare Niigata Japan
| | - Hideaki Onishi
- Institute for Human Movement and Medical Sciences Niigata University of Health and Welfare Niigata Japan
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DeForest BA, Bohorquez J, Perez MA. Vibration attenuates spasm-like activity in humans with spinal cord injury. J Physiol 2020; 598:2703-2717. [PMID: 32298483 DOI: 10.1113/jp279478] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Accepted: 03/17/2020] [Indexed: 12/21/2022] Open
Abstract
KEY POINTS Cutaneous reflexes were tested to examine the neuronal mechanisms contributing to muscle spasms in humans with chronic spinal cord injury (SCI). Specifically, we tested the effect of Achilles and tibialis anterior tendon vibration on the early and late components of the cutaneous reflex and reciprocal Ia inhibition in the soleus and tibialis anterior muscles in humans with chronic SCI. We found that tendon vibration reduced the amplitude of later but not earlier cutaneous reflex in the antagonist but not in the agonist muscle relative to the location of the vibration. In addition, reciprocal Ia inhibition between antagonist ankle muscles increased with tendon vibration and participants with a larger suppression of the later component of the cutaneous reflex had stronger reciprocal Ia inhibition from the antagonistic muscle. Our study is the first to provide evidence that tendon vibration attenuates late cutaneous spasm-like reflex activity, likely via reciprocal inhibitory mechanisms, and may represent a method, when properly targeted, for controlling spasms in humans with SCI. ABSTRACT The neuronal mechanisms contributing to the generation of involuntary muscle contractions (spasms) in humans with spinal cord injury (SCI) remain poorly understood. To address this question, we examined the effect of Achilles and tibialis anterior tendon vibration at 20, 40, 80 and 120 Hz on the amplitude of the long-polysynaptic (LPR, from reflex onset to 500 ms) and long-lasting (LLR, from 500 ms to reflex offset) cutaneous reflex evoked by medial plantar nerve stimulation in the soleus and tibialis anterior, and reciprocal Ia inhibition between these muscles, in 25 individuals with chronic SCI. We found that Achilles tendon vibration at 40 and 80 Hz, but not other frequencies, reduced the amplitude of the LLR in the tibialis anterior, but not the soleus muscle, without affecting the amplitude of the LPR. Vibratory effects were stronger at 80 than 40 Hz. Similar results were found in the soleus muscle when the tibialis anterior tendon was vibrated. Notably, tendon vibration at 80 Hz increased reciprocal Ia inhibition between antagonistic ankle muscles and vibratory-induced increases in reciprocal Ia inhibition were correlated with decreases in the LLR, suggesting that participants with a larger suppression of later cutaneous reflex activity had stronger reciprocal Ia inhibition from the antagonistic muscle. Our study is the first to provide evidence that tendon vibration suppresses late spasm-like activity in antagonist but not agonist muscles, likely via reciprocal inhibitory mechanisms, in humans with chronic SCI. We argue that targeted vibration of antagonistic tendons might help to control spasms after SCI.
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Affiliation(s)
- Bradley A DeForest
- Department of Neurological Surgery, The Miami Project to Cure Paralysis and Bruce W. Carter Department of Veterans Affairs Medical Center, University of Miami, Miami, FL, 33136.,Shirley Ryan AbilityLab and Edward Jr. Hines VA Hospital, Chicago, IL, 60141
| | - Jorge Bohorquez
- Department of Biomedical Engineering, University of Miami, Coral Gables, FL, 33124
| | - Monica A Perez
- Department of Neurological Surgery, The Miami Project to Cure Paralysis and Bruce W. Carter Department of Veterans Affairs Medical Center, University of Miami, Miami, FL, 33136.,Shirley Ryan AbilityLab and Edward Jr. Hines VA Hospital, Chicago, IL, 60141
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Upper-body vibration as part of warm-up: its effect on throwing velocity in elite adolescent handball players. SPORT SCIENCES FOR HEALTH 2020. [DOI: 10.1007/s11332-019-00604-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Effects of repetitive passive movement on ankle joint on spinal reciprocal inhibition. Exp Brain Res 2019; 237:3409-3417. [DOI: 10.1007/s00221-019-05689-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Accepted: 11/07/2019] [Indexed: 10/25/2022]
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Hsiao YH, Chien SH, Tu HP, Fu JCM, Tsai ST, Chen YS, Chen YJ, Chen CH. Early Post-Operative Intervention of Whole-Body Vibration in Patients After Total Knee Arthroplasty: A Pilot Study. J Clin Med 2019; 8:jcm8111902. [PMID: 31703305 PMCID: PMC6912668 DOI: 10.3390/jcm8111902] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2019] [Revised: 11/03/2019] [Accepted: 11/05/2019] [Indexed: 12/12/2022] Open
Abstract
(1) Background: Knee osteoarthritis causes pain, weakness, muscle atrophy, and disability. The application of whole-body vibration in patients with knee osteoarthritis can improve strength, balance, and functional activities. The purpose of the study is to evaluate the effects of early whole-body vibration intervention in patients after total knee arthroplasty. (2) Method: A single-blinded randomized control trial. Fifty-two patients with knee osteoarthritis post total knee replacement from a medical center in southern Taiwan were randomly assigned to either a whole-body vibration group or control group. Main outcome measures included pain severity, leg circumference, knee range of motion, knee extensor strength, a five-times sit to stand test, and a timed up and go test. (3) Results: Immediately post treatment, the patients in the vibration group showed a significant increase in knee extensor strength and improvement in calf swelling compared to the control group. A trend toward decrease in pain severity and improvement in functional performance were observed in both groups without a significant difference between the groups. There was no significant difference in knee range of motion (ROM) and functional performance between the groups. (4) Conclusions: The whole-body vibration intervention in patients early post total knee arthroplasty showed significant immediate effect in increasing knee extensor strength and decreasing calf swelling.
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Affiliation(s)
- Yu-Hsuan Hsiao
- Department of Physical Medicine and Rehabilitation, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan; (Y.-H.H.); (J.C.-M.F.); (S.-T.T.); (Y.-S.C.)
| | - Song-Hsiung Chien
- Department of Orthopaedics, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan;
| | - Hung-Pin Tu
- Department of Public Health and Environmental Medicine, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Jimmy Chun-Ming Fu
- Department of Physical Medicine and Rehabilitation, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan; (Y.-H.H.); (J.C.-M.F.); (S.-T.T.); (Y.-S.C.)
| | - Shih-Ting Tsai
- Department of Physical Medicine and Rehabilitation, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan; (Y.-H.H.); (J.C.-M.F.); (S.-T.T.); (Y.-S.C.)
| | - Ying-Shan Chen
- Department of Physical Medicine and Rehabilitation, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan; (Y.-H.H.); (J.C.-M.F.); (S.-T.T.); (Y.-S.C.)
| | - Yi-Jen Chen
- Department of Physical Medicine and Rehabilitation, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan; (Y.-H.H.); (J.C.-M.F.); (S.-T.T.); (Y.-S.C.)
- Department of Physical Medicine and Rehabilitation, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Correspondence: (Y.-J.C.); (C.-H.C.); Tel.: +886-7-312-1101 (ext. 5962) (Y.-J.C.); +886-7-312-1101 (ext. 5962) (C.-H.C.)
| | - Chia-Hsin Chen
- Department of Physical Medicine and Rehabilitation, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan; (Y.-H.H.); (J.C.-M.F.); (S.-T.T.); (Y.-S.C.)
- Department of Physical Medicine and Rehabilitation, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Department of Physical Medicine and Rehabilitation, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung 801, Taiwan
- Orthopaedic Research Center, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Correspondence: (Y.-J.C.); (C.-H.C.); Tel.: +886-7-312-1101 (ext. 5962) (Y.-J.C.); +886-7-312-1101 (ext. 5962) (C.-H.C.)
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Krause A, Lee K, Freyler K, Bührer T, Gollhofer A, Ritzmann R. Whole-body vibration impedes the deterioration of postural control in patients with multiple sclerosis. Mult Scler Relat Disord 2019; 31:134-140. [PMID: 30991299 DOI: 10.1016/j.msard.2019.03.026] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Revised: 03/12/2019] [Accepted: 03/31/2019] [Indexed: 11/17/2022]
Abstract
OBJECTIVE The current study aimed to investigate if whole-body vibration (WBV) might attenuate the processing functional and neuromuscular degeneration of postural control in patients with MS. DESIGN Performance in postural control was assessed before and after 6 weeks of a control (CON) and a WBV intervention period. SETTING Laboratory at the University of Freiburg & home-based training PARTICIPANTS: Out of 29 interested participants, 15 subjects with severe MS fit inclusion criteria. MAIN OUTCOME MEASURES Centre of pressure displacement (COP), muscle activity and co-contraction indices of m. soleus (SOL), gastrocnemius medialis (GM), tibialis anterior (TA), biceps (BF) and rectus femoris (RF) as well as SOL H/M-ratios. RESULTS After CON, COP was significantly enhanced with reduced muscle activity in RF and diminished shank muscle co-contraction. After WBV, no changes were observed in COP and neuromuscular control. However, over time, TA activity was reduced, but with no changes in muscle activation of SOL, GM and BF or H/M-ratios. CONCLUSIONS After CON, MS patients experienced substantial deteriorations in postural control which have previously been associated with greater postural instability. No further disease-associated deteriorations were observed following the intervention. Thus, WBV might alleviate neurodegeneration of postural control in people with MS.
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Affiliation(s)
- Anne Krause
- Department of Sport Science, University of Freiburg, Schwarzwaldstraße 175, 79117 Freiburg, Germany; Institute of Training and Computer Science, German Sport University Cologne, Am Sportpark Müngersdorf 6, 50933 Cologne, Germany.
| | - Kyungsoo Lee
- Department of Sport Science, University of Freiburg, Schwarzwaldstraße 175, 79117 Freiburg, Germany
| | - Kathrin Freyler
- Department of Sport Science, University of Freiburg, Schwarzwaldstraße 175, 79117 Freiburg, Germany
| | - Tilmann Bührer
- Department of Sport Science, University of Freiburg, Schwarzwaldstraße 175, 79117 Freiburg, Germany
| | - Albert Gollhofer
- Department of Sport Science, University of Freiburg, Schwarzwaldstraße 175, 79117 Freiburg, Germany
| | - Ramona Ritzmann
- Department of Sport Science, University of Freiburg, Schwarzwaldstraße 175, 79117 Freiburg, Germany; Department of Biomechanics, Praxisklinik Rennbahn, Switzerland
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