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Revilla JAD, Punongbayan JKP, Pesigan CM, Landicho SCD. Effects of Short-Term Hand Tractor Operation on Upper Limb Responses of Users. J Agromedicine 2024; 29:415-425. [PMID: 38595034 DOI: 10.1080/1059924x.2024.2338844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/11/2024]
Abstract
OBJECTIVES Continuous exposure to hand-arm vibration integrated with poor posture and forceful movements are known causes of musculoskeletal disorders (MSD). In most related studies, force and vibration levels in experimental research is controlled. This study aims to determine how actual hand tractor field operation can affect the upper limb of users. It intends to characterize upper limb muscle activation applied during actual hand tractor usage. Lastly, it determines the immediate impacts on hand strength and perceived upper limb discomfort after the operation. METHODS We recruited 15 farm operators with a mean working experience of 20.1 ± 12.2 years. They were asked to operate a hand tractor on paddy fields for at most 8 minutes. Handle vibration was measured using a tri-axial accelerometer. The total unweighted vibration acceleration was computed and used to represent the handle vibration magnitude. Muscle activation was measured using surface electromyography (sEMG). Six sEMG sensors were attached to the dominant and non-dominant side of the extensor carpi radialis (ECR), bicep, and deltoid. Pre- and post-task hand strength and subjective discomfort rating were also taken. RESULTS The total unweighted handle vibration acceleration is 17.45 ± 7.53 m/s2. This exceeds the allowable safe value. Meanwhile, the percentage of maximum voluntary contraction (% MVC) of the muscles ranged from 6% to 14% with the ECR having a significantly higher activation (p < .05) than the bicep and deltoid. The post-task grip strength of the dominant hand was lower than its pre-task value (p < .01) while that of the non-dominant side did not vary significantly. There is a modest trend of higher hand discomfort of the non-dominant side on post-task than pre-task rating (p < .10). Although, overall, the perceived discomfort ranged from none to mild discomfort. CONCLUSION In conclusion, the study showed an indication that the effects of vibration on humans are evident even at mild muscle exertion, with the exertion predominantly concentrated on the distal arm area clearly affecting grip strength and hand discomfort. In such cases, future recommendations can revolve around the improvement of the hand tractor handle grip to impose grip comfort and ease.
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Affiliation(s)
- Josefa Angelie D Revilla
- Department of Industrial Engineering, College of Engineering and Agro-Industrial Technology, University of the Philippines Los Baños, Laguna, Philippines
| | - John Kenneth P Punongbayan
- Department of Industrial Engineering, College of Engineering and Agro-Industrial Technology, University of the Philippines Los Baños, Laguna, Philippines
| | - Clarissa M Pesigan
- Department of Industrial Engineering, College of Engineering and Agro-Industrial Technology, University of the Philippines Los Baños, Laguna, Philippines
| | - Stephanie Caridad Dr Landicho
- Department of Industrial Engineering, College of Engineering and Agro-Industrial Technology, University of the Philippines Los Baños, Laguna, Philippines
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Control of structural redundancy from the head to trunk in the human upright standing revealed using a data-driven approach. Sci Rep 2022; 12:13164. [PMID: 35915210 PMCID: PMC9343422 DOI: 10.1038/s41598-022-17322-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Accepted: 05/09/2022] [Indexed: 11/08/2022] Open
Abstract
The human being dynamically and highly controls the head-trunk with redundant mechanical structures to maintain a stable upright standing position that is inherently unstable. The posture control strategies are also affected by the differences in the conditions of sensory inputs. However, it is unclear how the head-trunk segmental properties are altered to respond to situations that require appropriate changes in standing posture control strategies. We used a data-driven approach to conduct a multipoint measurement of head-trunk sway control in a quiet standing position with differences in the conditions of sensory inputs. Healthy young subjects with 22 accelerometers attached to their backs were evaluated for head-trunk vibration during quiet standing under two conditions: one with open eyes and one with closed eyes. The synchronization of the acceleration and the instantaneous phase was then calculated. The results showed that the synchronization of acceleration and instantaneous phase varied depending on the visual condition, and there were some continuous coherent patterns in each condition. Findings were that the structural redundancy of the head-trunk, which is multi-segmental and has a high mass ratio in the whole body, must be adjusted adaptively according to the conditions to stabilize upright standing in human-specific bipeds.
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Liu Y, Fan Y, Chen X. Effects of Whole-Body Vibration Training with Different Body Positions and Amplitudes on Lower Limb Muscle Activity in Middle-Aged and Older Women. Dose Response 2022; 20:15593258221112960. [PMID: 35859854 PMCID: PMC9289914 DOI: 10.1177/15593258221112960] [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: 03/21/2022] [Accepted: 06/23/2022] [Indexed: 11/23/2022] Open
Abstract
Purpose The 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.
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Affiliation(s)
- Yuxiu Liu
- Capital University of Physical Education and Sports, Beijing, China
| | - Yongzhao Fan
- Capital University of Physical Education and Sports, Beijing, China
| | - Xiaohong Chen
- Capital University of Physical Education and Sports, Beijing, China
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Beck B, Rubin C, Harding A, Paul S, Forwood M. The effect of low-intensity whole-body vibration with or without high-intensity resistance and impact training on risk factors for proximal femur fragility fracture in postmenopausal women with low bone mass: study protocol for the VIBMOR randomized controlled trial. Trials 2022; 23:15. [PMID: 34991684 PMCID: PMC8734256 DOI: 10.1186/s13063-021-05911-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Accepted: 12/03/2021] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND The prevailing medical opinion is that medication is the primary (some might argue, only) effective intervention for osteoporosis. It is nevertheless recognized that osteoporosis medications are not universally effective, tolerated, or acceptable to patients. Mechanical loading, such as vibration and exercise, can also be osteogenic but the degree, relative efficacy, and combined effect is unknown. The purpose of the VIBMOR trial is to determine the efficacy of low-intensity whole-body vibration (LIV), bone-targeted, high-intensity resistance and impact training (HiRIT), or the combination of LIV and HiRIT on risk factors for hip fracture in postmenopausal women with osteopenia and osteoporosis. METHODS Postmenopausal women with low areal bone mineral density (aBMD) at the proximal femur and/or lumbar spine, with or without a history of fragility fracture, and either on or off osteoporosis medications will be recruited. Eligible participants will be randomly allocated to one of four trial arms for 9 months: LIV, HiRIT, LIV + HiRIT, or control (low-intensity, home-based exercise). Allocation will be block-randomized, stratified by use of osteoporosis medications. Testing will be performed at three time points: baseline (T0), post-intervention (T1; 9 months), and 1 year thereafter (T2; 21 months) to examine detraining effects. The primary outcome measure will be total hip aBMD determined by dual-energy X-ray absorptiometry (DXA). Secondary outcomes will include aBMD at other regions, anthropometrics, and other indices of bone strength, body composition, physical function, kyphosis, muscle strength and power, balance, falls, and intervention compliance. Exploratory outcomes include bone turnover markers, pelvic floor health, quality of life, physical activity enjoyment, adverse events, and fracture. An economic evaluation will also be conducted. DISCUSSION No previous studies have compared the effect of LIV alone or in combination with bone-targeted HiRIT (with or without osteoporosis medications) on risk factors for hip fracture in postmenopausal women with low bone mass. Should either, both, or combined mechanical interventions be safe and efficacious, alternative therapeutic avenues will be available to individuals at elevated risk of fragility fracture who are unresponsive to or unwilling or unable to take osteoporosis medications. TRIAL REGISTRATION Australian New Zealand Clinical Trials Registry (www. anzctr.org.au ) (Trial number ANZCTR12615000848505, https://www.anzctr.org.au/Trial/Registration/TrialReview.aspx?id = 368962 ); date of registration 14/08/2015 (prospectively registered). Universal Trial Number: U1111-1172-3652.
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Affiliation(s)
- Belinda Beck
- Menzies Health Institute Queensland, School of Health Sciences and Social Work, Griffith University, Gold Coast, QLD Australia
| | - Clinton Rubin
- Department of Biomedical Engineering, State University of New York at Stony Brook, New York, NY USA
| | - Amy Harding
- Menzies Health Institute Queensland, School of Health Sciences and Social Work, Griffith University, Gold Coast, QLD Australia
| | - Sanjoy Paul
- Melbourne EpiCentre, University of Melbourne and Melbourne Health, Melbourne, VIC Australia
| | - Mark Forwood
- School of Pharmacy and Medical Sciences, Gold Coast, QLD Australia
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Reporting Guidelines for Whole-Body Vibration Studies in Humans, Animals and Cell Cultures: A Consensus Statement from an International Group of Experts. BIOLOGY 2021; 10:biology10100965. [PMID: 34681065 PMCID: PMC8533415 DOI: 10.3390/biology10100965] [Citation(s) in RCA: 53] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 09/22/2021] [Accepted: 09/23/2021] [Indexed: 11/16/2022]
Abstract
Simple Summary Whole-body vibration (WBV) is an exercise or treatment method used in sports, physiotherapy, and rehabilitation. During WBV, people sit, stand, or exercise on a platform that generates vibrations. These vibrations generally occur between 20 and 60 times per second and have a magnitude of one or several millimeters. Research is focused on the effects of WBV on, for instance, physical and cognitive functions as well as the underlying mechanisms that may explain the effects. Research is not only done in humans but in animals and cell cultures as well. It is important to report the studies correctly, completely, and consistently. This way, researchers can interpret and compare each other’s studies, and data of different studies can be combined and analyzed together. To serve this goal, we developed new guidelines on how to report on WBV studies. The guidelines include checklists for human and animal/cell culture research, explanations, and examples of how to report. We included information about devices, vibrations, administration, general protocol, and subjects. The guidelines are WBV-specific and can be used by researchers alongside general guidelines for specific research designs. Abstract Whole-body vibration (WBV) is an exercise modality or treatment/prophylaxis method in which subjects (humans, animals, or cells) are exposed to mechanical vibrations through a vibrating platform or device. The vibrations are defined by their direction, frequency, magnitude, duration, and the number of daily bouts. Subjects can be exposed while performing exercises, hold postures, sitting, or lying down. Worldwide, WBV has attracted significant attention, and the number of studies is rising. To interpret, compare, and aggregate studies, the correct, complete, and consistent reporting of WBV-specific data (WBV parameters) is critical. Specific reporting guidelines aid in accomplishing this goal. There was a need to expand existing guidelines because of continuous developments in the field of WBV research, including but not limited to new outcome measures regarding brain function and cognition, modified designs of WBV platforms and attachments (e.g., mounting a chair on a platform), and comparisons of animal and cell culture studies with human studies. Based on Delphi studies among experts and using EQUATOR recommendations, we have developed extended reporting guidelines with checklists for human and animal/cell culture research, including information on devices, vibrations, administration, general protocol, and subjects. In addition, we provide explanations and examples of how to report. These new reporting guidelines are specific to WBV variables and do not target research designs in general. Researchers are encouraged to use the new WBV guidelines in addition to general design-specific guidelines.
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Maghbouli N, Khodadost M, Pourhassan S. The effectiveness of vibration therapy for muscle peak torque and postural control in individuals with anterior cruciate ligament reconstruction: a systematic review and meta-analysis of clinical trials. J Orthop Traumatol 2021; 22:28. [PMID: 34259935 PMCID: PMC8280257 DOI: 10.1186/s10195-021-00589-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Accepted: 06/28/2021] [Indexed: 12/03/2022] Open
Abstract
Objective This study aimed to review and summarize the existing evidence on the effectiveness of vibration therapy (VT) in comparison with conventional rehabilitation in anterior cruciate ligament (ACL)-reconstructed patients considering muscle peak torque and postural control. Methods We searched available online databases for relevant studies published up to February 2020. All randomized clinical trials investigating the effect of VT on quadriceps peak torque, hamstring peak torque, and postural control (closed-eye and open-eye) were included. Overall, 13 clinical trials with a total sample size of 407 participants were included for the meta-analysis. We used the pooled mean difference with random effects model for meta-analyses. We assessed the heterogeneity of the studies using the I2 and Cochran’s Q test. Meta-regression analysis was used to assess the source of heterogeneity. Results We found that VT significantly improved hamstring peak torque [weighted mean difference (WMD) 12.67, 95% CI 4.51–20.83] and quadriceps peak torque (WMD 0.11, 95% CI −0.06 to 0.29). However, subgroup analysis showed a significant increase in mentioned muscles’ peak torque in studies employing interventions including both local muscle vibration (LMV) and vibration frequency higher than 100 Hz (WMD 20.84, 95% CI 11.75–29.93). With regard to postural control, we observed a significant improvement only in open-eye mediolateral postural control (WMD 0.26, 95% CI −1.26 to 1.77). Conclusion This study suggests that VT, especially LMV type with vibration frequency higher than 100 Hz, can be effective in rehabilitation of ACL-reconstructed patients. Although improvement in the peak torque of hamstring and quadriceps muscles was seen, there was no significant improvement in postural control, especially closed-eye, in comparison with conventional rehabilitation. Level of evidence 1. Highlights Vibration therapy can increase hamstring peak torque in individuals with ACL reconstruction. Local muscle vibration type in comparison with whole-body vibration is recommended for ACL-reconstructed patients. Vibration frequency higher than 100 Hz is preferred in ACL-reconstructed rehabilitation. Supplementary Information The online version contains supplementary material available at 10.1186/s10195-021-00589-5.
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Affiliation(s)
- Nastaran Maghbouli
- Physical Medicine and Rehabilitation Department, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahmoud Khodadost
- Department of Epidemiology, School of Public Health, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Department of Epidemiology, School of Public Health, Larestan University of Medical Sciences, Larestan, Iran
| | - Saeed Pourhassan
- Internal Medicine Department, Shariati Hospital, Tehran University of Medical Sciences, 1411713135, Tehran, Iran.
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7
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Load Measurement of the Cervical Vertebra C7 and the Head of Passengers of a Car While Driving across Uneven Terrain. SENSORS 2021; 21:s21113849. [PMID: 34199638 PMCID: PMC8199783 DOI: 10.3390/s21113849] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 05/27/2021] [Accepted: 05/27/2021] [Indexed: 11/17/2022]
Abstract
The article deals with the measurement of dynamic effects that are transmitted to the driver (passenger) when driving in a car over obstacles. The measurements were performed in a real environment on a defined track at different driving speeds and different distributions of obstacles on the road. The reaction of the human organism, respectively the load of the cervical vertebrae and the heads of the driver and passenger, was measured. Experimental measurements were performed for different variants of driving conditions on a 28-year-old and healthy man. The measurement's main objective was to determine the acceleration values of the seats in the vehicle in the vertical movement of parts of the vehicle cabin and to determine the dynamic effects that are transmitted to the driver and passenger in a car when driving over obstacles. The measurements were performed in a real environment on a defined track at various driving speeds and diverse distributions of obstacles on the road. The acceleration values on the vehicle's axles and the structure of the driver's and front passenger's seats, under the buttocks, at the top of the head (Vertex Parietal Bone) and the C7 cervical vertebra (Vertebra Cervicales), were measured. The result of the experiment was to determine the maximum magnitudes of acceleration in the vertical direction on the body of the driver and the passenger of the vehicle when passing a passenger vehicle over obstacles. The analysis of the experiment's results is the basis for determining the future direction of the research.
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Oliveira MP, Menzel HJK, Cochrane DJ, Drummond MDM, Demicheli C, Lage G, Couto BP. Individual Responses to Different Vibration Frequencies Identified by Electromyography and Dynamometry in Different Types of Vibration Application. J Strength Cond Res 2021; 35:1748-1759. [PMID: 30844986 DOI: 10.1519/jsc.0000000000002985] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
ABSTRACT Oliveira, MP, Menzel, H-JK, Cochrane, DJ, Drummond, MD, Demicheli, C, Lage, G, and Couto, BP. Individual responses to different vibration frequencies identified by electromyography and dynamometry in different types of vibration application. J Strength Cond Res 35(6): 1748-1759, 2021-The application of mechanical vibration is a common neuromuscular training technique used in sports training programs to generate acute increases in muscle strength. The principal aim of the study was to compare the individual optimal vibration frequency (IOVF) identified by electromyography (EMG) activity and force production in strength training. Twenty well-trained male volunteers (age: 23.8 ± 3.3 years) performed a familiarization and 2 interventions sessions, which included 5 maximal voluntary contractions (MVCs) of the elbow flexors with a duration of 10 seconds and 5-minute intervals between each MVC. The first MVC was performed without vibration followed by 4 randomized MVCs with application of vibration in the direction of the resultant muscle forces' vector (VDF) or whole-body vibration (WBV) at frequencies of 10, 20, 30, or 40 Hz. The mechanical vibration stimulus was superimposed during the MVC. Individual optimal vibration frequency, as identified by EMG, did not coincide with IOVF identified by force production; low agreement was observed between the vibration frequencies in generating the higher EMG activity, maximal force, and root mean square of force. These findings suggest that the magnitude of the vibratory stimulus response is individualized. Therefore, if the aim is to use acute vibration in conjunction with strength training, a preliminary vibration exposure should be conducted to determine the individualized vibratory stimulus of the subject, so that training effects can be optimized.
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Affiliation(s)
- Mariana P Oliveira
- Laboratory of Load Evaluation, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Hans-Joachim K Menzel
- Laboratory of Biomechanics, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | | | - Marcos D M Drummond
- Laboratory of Load Evaluation, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Carlo Demicheli
- School of Mathematics, Federal University of Minas Gerais, Belo Horizonte, Brazil; and
| | - Guilherme Lage
- Laboratory of Movements Analyses, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Bruno P Couto
- Laboratory of Load Evaluation, Federal University of Minas Gerais, Belo Horizonte, Brazil
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Santos LMM, Oliveira ACC, Fonseca SF, Silva AF, Santos JNV, Souza ALC, Santos JM, Ribeiro VGC, Arrieiro AN, Prates ACN, Soares LA, Figueiredo PHS, Martins F, Lima VP, Fernandes JSC, Bernardo-Filho M, Taiar R, Borges DT, Sartorio A, Costa HS, Leite HR, Mendonça VA, Lacerda ACR. Whole-Body Vibration Exercise in Different Postures on Handgrip Strength in Healthy Women: A Cross-Over Study. Front Physiol 2021; 11:469499. [PMID: 33536927 PMCID: PMC7848817 DOI: 10.3389/fphys.2020.469499] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Accepted: 12/07/2020] [Indexed: 01/01/2023] Open
Abstract
Objective To compare the effect of Whole-Body Vibration Exercise (WBVE) applied in push-up modified and half-squat positions, on handgrip strength (HS) and on the electromyography registry (EMGrms) of the flexor digitorum superficialis muscle (FDSM) of the dominant hand. Methods Nineteen healthy women (age 23.40 ± 4.03 years, bodyweight: 58.89 ± 9.87 kg), performed in a randomized order five different tests: (S1) Control; (S2) Push-up modified; (S3) Push-up placebo; (S4); Half-squatting; (S5) Half-squatting placebo. The HS and the EMGrms were assessed at baseline and immediately after the tests. ANOVA two-way design mixed test, with Tukey post hoc, was used to evaluate the HS, EMGrms and the ratio between EMGrms and HS, i.e., neural ratio (NR). Thus, the lower NR represents the greater neuromuscular modifications. The statistical significance level was set up at p < 0.05. Results WBVE on S2 increased HS compared to the stimulus applied to the S4 (p = 0.0001). The increase in HS was associated with a reduction in the EMGrms of the FDSM (p < 0.001) and a lower NR (p < 0.0001), i.e., greater neuromuscular modifications, in the S2 compared to the S4 after the tests. Conclusion The distance of the stimulus and the positioning on the vibratory platform influence the maximum muscular strength due to neuromuscular modifications of hands in healthy women.
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Affiliation(s)
- Luciana M M Santos
- Centro Integrado de Pós-Graduação e Pesquisa em Saúde (CIPq-Saúde), Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Brazil.,Programa de Pós-Graduação em Reabilitação e Desempenho Funcional (PPGReab), Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Brazil
| | - Ana Carolina C Oliveira
- Centro Integrado de Pós-Graduação e Pesquisa em Saúde (CIPq-Saúde), Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Brazil.,Programa de Pós-Graduação em Reabilitação e Desempenho Funcional (PPGReab), Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Brazil
| | - Sueli F Fonseca
- Centro Integrado de Pós-Graduação e Pesquisa em Saúde (CIPq-Saúde), Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Brazil
| | - Angélica F Silva
- Centro Integrado de Pós-Graduação e Pesquisa em Saúde (CIPq-Saúde), Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Brazil.,Programa de Pós-Graduação em Reabilitação e Desempenho Funcional (PPGReab), Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Brazil
| | - Joyce N V Santos
- Centro Integrado de Pós-Graduação e Pesquisa em Saúde (CIPq-Saúde), Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Brazil.,Programa de Pós-Graduação em Reabilitação e Desempenho Funcional (PPGReab), Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Brazil
| | - Ana Lúcia C Souza
- Centro Integrado de Pós-Graduação e Pesquisa em Saúde (CIPq-Saúde), Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Brazil.,Programa de Pós-Graduação em Reabilitação e Desempenho Funcional (PPGReab), Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Brazil
| | - Jousielle M Santos
- Centro Integrado de Pós-Graduação e Pesquisa em Saúde (CIPq-Saúde), Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Brazil.,Programa de Pós-Graduação em Reabilitação e Desempenho Funcional (PPGReab), Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Brazil.,Programa Multicêntrico de Pós-Graduação em Ciências Fisiológicas (PMPGCF), Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Brazil
| | - Vanessa G C Ribeiro
- Centro Integrado de Pós-Graduação e Pesquisa em Saúde (CIPq-Saúde), Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Brazil.,Programa Multicêntrico de Pós-Graduação em Ciências Fisiológicas (PMPGCF), Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Brazil
| | - Arthur N Arrieiro
- Centro Integrado de Pós-Graduação e Pesquisa em Saúde (CIPq-Saúde), Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Brazil.,Programa Multicêntrico de Pós-Graduação em Ciências Fisiológicas (PMPGCF), Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Brazil.,Programa de Pós-Graduação em Ciências da Saúde (PPGCS), Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Brazil
| | - Ana Caroline N Prates
- Centro Integrado de Pós-Graduação e Pesquisa em Saúde (CIPq-Saúde), Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Brazil.,Programa de Pós-Graduação em Reabilitação e Desempenho Funcional (PPGReab), Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Brazil
| | - Luana A Soares
- Centro Integrado de Pós-Graduação e Pesquisa em Saúde (CIPq-Saúde), Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Brazil.,Faculdade de Ciências Biológicas e da Saúde, Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Brazil
| | - Pedro Henrique S Figueiredo
- Centro Integrado de Pós-Graduação e Pesquisa em Saúde (CIPq-Saúde), Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Brazil.,Programa de Pós-Graduação em Reabilitação e Desempenho Funcional (PPGReab), Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Brazil.,Faculdade de Ciências Biológicas e da Saúde, Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Brazil
| | - Fábio Martins
- Centro Integrado de Pós-Graduação e Pesquisa em Saúde (CIPq-Saúde), Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Brazil.,Programa de Pós-Graduação em Reabilitação e Desempenho Funcional (PPGReab), Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Brazil.,Faculdade de Ciências Biológicas e da Saúde, Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Brazil
| | - Vanessa P Lima
- Centro Integrado de Pós-Graduação e Pesquisa em Saúde (CIPq-Saúde), Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Brazil.,Programa de Pós-Graduação em Reabilitação e Desempenho Funcional (PPGReab), Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Brazil.,Faculdade de Ciências Biológicas e da Saúde, Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Brazil
| | - José Sebastião C Fernandes
- Faculdade de Ciências Agrárias, Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Brazil
| | - Mário Bernardo-Filho
- Departamento de Biofísica e Biometria, Universidade do Estado do Rio de Janeiro (UERJ), Rio de Janeiro, Brazil.,Instituto de Biologia Roberto Alcantara Gomes (IBRAG), Rio de Janeiro, Brazil
| | - Redha Taiar
- GRESPI-EA4694, Reims University, Reims, France
| | - Daniel T Borges
- Departamento de Fisioterapia, Universidade Federal do Rio Grande do Norte (UFRN), Rio Grande do Norte, Brazil
| | - Alessandro Sartorio
- Division of Auxology and Metabolic Diseases, Istituto Auxologico Italiano, IRCCS (Scientific Institute for Research and Care), Milan, Italy
| | - Henrique S Costa
- Centro Integrado de Pós-Graduação e Pesquisa em Saúde (CIPq-Saúde), Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Brazil.,Programa de Pós-Graduação em Reabilitação e Desempenho Funcional (PPGReab), Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Brazil.,Faculdade de Ciências Biológicas e da Saúde, Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Brazil
| | - Hércules R Leite
- Programa de Pós-Graduação em Reabilitação e Desempenho Funcional (PPGReab), Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Brazil.,Programa Multicêntrico de Pós-Graduação em Ciências Fisiológicas (PMPGCF), Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Brazil.,Programa de Pós-Graduação em Ciências da Reabilitação, Escola de Educação Física, Fisioterapia e Terapia Ocupacional, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Brazil
| | - Vanessa A Mendonça
- Centro Integrado de Pós-Graduação e Pesquisa em Saúde (CIPq-Saúde), Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Brazil.,Programa de Pós-Graduação em Reabilitação e Desempenho Funcional (PPGReab), Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Brazil.,Programa Multicêntrico de Pós-Graduação em Ciências Fisiológicas (PMPGCF), Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Brazil.,Programa de Pós-Graduação em Ciências da Saúde (PPGCS), Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Brazil.,Faculdade de Ciências Biológicas e da Saúde, Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Brazil
| | - Ana Cristina R Lacerda
- Centro Integrado de Pós-Graduação e Pesquisa em Saúde (CIPq-Saúde), Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Brazil.,Programa de Pós-Graduação em Reabilitação e Desempenho Funcional (PPGReab), Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Brazil.,Programa Multicêntrico de Pós-Graduação em Ciências Fisiológicas (PMPGCF), Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Brazil.,Programa de Pós-Graduação em Ciências da Saúde (PPGCS), Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Brazil.,Faculdade de Ciências Biológicas e da Saúde, Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Brazil
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10
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Chadefaux D, Moorhead AP, Marzaroli P, Marelli S, Marchetti E, Tarabini M. Vibration transmissibility and apparent mass changes from vertical whole-body vibration exposure during stationary and propelled walking. APPLIED ERGONOMICS 2021; 90:103283. [PMID: 33049546 DOI: 10.1016/j.apergo.2020.103283] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 07/08/2020] [Accepted: 10/08/2020] [Indexed: 06/11/2023]
Abstract
Whole-Body Vibration (WBV) is an occupational hazard affecting employees working with transportation, construction or heavy machinery. To minimize vibration-induced pathologies, ISO identified WBV exposure limits based on vibration transmissibility and apparent mass studies. The ISO guidelines do not account for variations in posture or movement. In our study, we measured the transmissibility and apparent mass at the mouth, lower back, and leg of participants during stationary and propelled walking. Stationary walking transmissibility was significantly higher at the lumbar spine and bite bar at 5 and 10 Hz compared to all higher frequencies while the distal tibia was lower at 5 Hz compared to 10 and 15 Hz. Propelled walking transmissibility was significantly higher at the bite bar and knee at 2 Hz than all higher frequencies. These results vary from previously published transmissibility values for static participants, showing that ISO standards should be adjusted for active workers.
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Affiliation(s)
- Delphine Chadefaux
- Dipartimento di Meccanica, Politecnico di Milano, via Privata Giuseppe la Masa 1, 20156, Milano, Italy; Université Sorbonne Paris Nord, Institut de Biomécanique Humaine Georges Charpak, IBHGC, UR 4494, F-93000, Bobigny, France; Arts et Métiers Institute of Technology, F-75013, Paris, France; Département STAPS, Université Sorbonne Paris Nord, Bobigny, France.
| | - Alex P Moorhead
- Dipartimento di Meccanica, Politecnico di Milano, via Privata Giuseppe la Masa 1, 20156, Milano, Italy
| | - Pietro Marzaroli
- Dipartimento di Meccanica, Politecnico di Milano, via Privata Giuseppe la Masa 1, 20156, Milano, Italy
| | - Stefano Marelli
- Dipartimento di Meccanica, Politecnico di Milano, via Privata Giuseppe la Masa 1, 20156, Milano, Italy
| | - Enrico Marchetti
- INAIL, Via di fontana candida, 00040, Monte Porzio Catone (Roma), Italy
| | - Marco Tarabini
- Dipartimento di Meccanica, Politecnico di Milano, via Privata Giuseppe la Masa 1, 20156, Milano, Italy; Laurentian University, Bharty School of Engineering, Sudbury, ON, P3E 2C6, Canada
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11
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Acute effect of whole-body vibration on acceleration transmission and jumping performance in children. Clin Biomech (Bristol, Avon) 2021; 81:105235. [PMID: 33221052 DOI: 10.1016/j.clinbiomech.2020.105235] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Revised: 08/14/2020] [Accepted: 11/09/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND Whole-body vibration (WBV) has emerged as a potential intervention paradigm for improving motor function and bone growth in children with disabilities. However, most evidence comes from adult studies. It is critical to understand the mechanisms of children with and without disabilities responding to different WBV conditions. This study aimed to systematically investigate the acute biomechanical and neuromuscular response in typically developing children aged 6-11 years to varying WBV frequencies and amplitudes. METHODS Seventeen subjects participated in this study (mean age 8.7 years, 10 M/7F). A total of six side-alternating WBV conditions combining three frequencies (20, 25, and 30 Hz) and two amplitudes (1 and 2 mm) were randomly presented for one minute. We estimated transmission of vertical acceleration across body segments during WBV as the average rectified acceleration of motion capture markers, as well as lower-body muscle activation using electromyography. Following WBV, subjects performed countermovement jumps to assess neuromuscular facilitation. FINDINGS Vertical acceleration decreased from the ankle to the head across all conditions, with the greatest damping occurring from the ankle to the knee. Acceleration transmission was lower at the high amplitude than at the low amplitude across body segments, and the knee decreased acceleration transmission with increasing frequency. In addition, muscle activation generally increased with frequency during WBV. There were no changes in jump height or muscle activation following WBV. INTERPRETATION WBV is most likely a safe intervention paradigm for typically developing children. Appropriate WBV intervention design for children with and without disabilities should consider WBV frequency and amplitude.
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12
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Troy Blackburn J, Dewig DR, Johnston CD. Time course of the effects of vibration on quadriceps function in individuals with anterior cruciate ligament reconstruction. J Electromyogr Kinesiol 2020; 56:102508. [PMID: 33302006 DOI: 10.1016/j.jelekin.2020.102508] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Revised: 11/16/2020] [Accepted: 11/23/2020] [Indexed: 11/18/2022] Open
Abstract
Quadriceps dysfunction is a common, chronic complication following anterior cruciate ligament reconstruction (ACLR) that contributes to aberrant gait biomechanics and poor joint health. Vibration enhances quadriceps function in individuals with ACLR, but the duration of these effects is unknown. This study evaluated the time course of the effects of whole body vibration (WBV) and local muscle vibration (LMV) on quadriceps function. Twenty-four volunteers with ACLR completed 3 testing sessions during which quadriceps isometric peak torque, rate of torque development, and EMG amplitude were assessed prior to and immediately, 10, 20, 30, 45, and 60 min following a WBV, LMV, or control intervention. WBV and LMV (30 Hz, 2g) were applied during six one-minute bouts. WBV increased peak torque 5-11% relative to baseline and control at all post-intervention time points. LMV increased peak torque 6% relative to baseline at 10 min post-intervention and 4-6% relative to control immediately, 10 min, and 20 min post-intervention. The interventions did not influence EMG amplitudes or rate of torque development. The sustained improvements in quadriceps following vibration, especially WBV, suggest that it could be applied at the beginning of rehabilitation sessions to "prime" the central nervous system, potentially improving the efficacy of ACLR rehabilitative exercise.
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Affiliation(s)
- J Troy Blackburn
- Department of Exercise and Sport Science, High Point University, USA; Program in Human Movement Science, High Point University, USA.
| | - Derek R Dewig
- Program in Human Movement Science, High Point University, USA
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13
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Kim E, Okamoto T, Song J, Lee K. The acute effects of different frequencies of whole-body vibration on arterial stiffness. Clin Exp Hypertens 2020; 42:345-351. [PMID: 31514544 DOI: 10.1080/10641963.2019.1665675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Whole-body vibration (WBV) can decrease arterial stiffness, but the effects of low-frequency WBV on arterial stiffness are not known. The aim of this study was to clarify the acute effects on arterial stiffness of WBV by vibration frequency. This study involved 9 healthy men (age: 31 ± 7 years). Each WBV session involved 3 sets of 4 different vibrations (0 Hz [control], 12 Hz, 20 Hz, 30 Hz) lasting 60 s with a 60-s inter-session rest interval. During WBV, the participants adopted a static squat position with their knees bent. An automatic oscillometric device was used to measure brachial-ankle pulse wave velocity (baPWV) before (baseline) and 5, 15, and 30 min after WBV. There was a significant decrease in baPWV from baseline at 30 min (P = .02) after WBV at 30 Hz. However, there was no change in baPWV at any time points after WBV at 0 (control), 12, and 20 Hz. These results suggested that low-frequency WBV does not affect arterial stiffness.
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Affiliation(s)
- Eonho Kim
- Department of Physical Education, Dongguk University, Seoul, The Republic of Korea
| | - Takanobu Okamoto
- Department of Exercise Physiology, Nippon Sport Science University, Tokyo, Japan
| | - Jooho Song
- Department of Sports Science, Korea Institute of Sport Science, Seoul, The Republic of Korea
| | - Kihyuk Lee
- Center for Sport Science in Jeju, Jeju Special Self-Governing Provincial Sports Council, Jeju, The Republic of Korea
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14
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Sen EI, Esmaeilzadeh S, Eskiyurt N. Effects of whole-body vibration and high impact exercises on the bone metabolism and functional mobility in postmenopausal women. J Bone Miner Metab 2020; 38:392-404. [PMID: 31897748 DOI: 10.1007/s00774-019-01072-2] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Accepted: 11/26/2019] [Indexed: 12/19/2022]
Abstract
INTRODUCTION This study determined the effects of whole-body vibration (WBV) and high-impact exercises on postmenopausal women. MATERIALS AND METHODS In this randomized controlled 6-month interventional trial, 58 eligible postmenopausal women were assigned to WBV training group, high-impact training group, or control group. Bone mineral density (BMD) of the lumbar spine and femur were measured by dual-energy X-ray absorptiometry. Additionally, the serum osteocalcin (OC) and C-terminal telopeptide of type I collagen levels were also measured. The functional mobility was assessed using the Timed Up and Go (TUG) test, and fall index was measured using static posturography. The health-related quality of life (HRQoL) and depressive symptoms were assessed using the Quality of Life Questionnaire of the European Foundation for Osteoporosis and Beck Depression Inventory, respectively. RESULTS The BMD at the femoral neck (p = 0.003) and L2-L4 (p = 0.005) regions increased significantly in the WBV group compared to the control group. However, in the high-impact exercise group there were no significant effects on the lumbar spine and femoral neck. The serum OC decreased significantly in the WBV group and increased significantly in both the high-impact exercise and control groups (p < 0.001). The TUG scores decreased significantly in both training groups compared to the control group (p < 0.05). Finally, in both exercise groups, HRQoL and depressive symptoms improved (p < 0.001). CONCLUSIONS Our data suggest that the WBV can prevent bone loss in postmenopausal women. These findings also indicate that WBV and high-impact training programs improve functional mobility, HRQoL and depressive symptoms in postmenopausal women.
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Affiliation(s)
- Ekin Ilke Sen
- Department of Physical Medicine and Rehabilitation, Istanbul Faculty of Medicine, Istanbul University, Millet Cad, 34093, Istanbul, Turkey.
| | - Sina Esmaeilzadeh
- Department of Physical Medicine and Rehabilitation, Istanbul Faculty of Medicine, Istanbul University, Millet Cad, 34093, Istanbul, Turkey
| | - Nurten Eskiyurt
- Department of Physical Medicine and Rehabilitation, Istanbul Faculty of Medicine, Istanbul University, Millet Cad, 34093, Istanbul, Turkey
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15
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Holsgrove TP, Zeeman ME, Welch WC, Winkelstein BA. Pain After Whole-Body Vibration Exposure Is Frequency Dependent and Independent of the Resonant Frequency: Lessons From an In Vivo Rat Model. J Biomech Eng 2020; 142:958443. [PMID: 31513714 DOI: 10.1115/1.4044547] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Indexed: 12/24/2022]
Abstract
Occupational whole-body vibration (WBV) increases the risk of developing low back and neck pain; yet, there has also been an increased use of therapeutic WBV in recent years. Although the resonant frequency (fr) of the spine decreases as the exposure acceleration increases, effects of varying the vibration profile, including peak-to-peak displacement (sptp), root-mean-squared acceleration (arms), and frequency (f), on pain onset are not known. An established in vivo rat model of WBV was used to characterize the resonance of the spine using sinusoidal sweeps. The relationship between arms and fr was defined and implemented to assess behavioral sensitivity-a proxy for pain. Five groups were subjected to a single 30-min exposure, each with a different vibration profile, and a sham group underwent only anesthesia exposure. The behavioral sensitivity was assessed at baseline and for 7 days following WBV-exposure. Only WBV at 8 Hz induced behavioral sensitivity, and the higher arms exposure at 8 Hz led to a more robust pain response. These results suggest that the development of pain is frequency-dependent, but further research into the mechanisms leading to pain is warranted to fully understand which WBV profiles may be detrimental or beneficial.
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Affiliation(s)
- Timothy P Holsgrove
- Department of Engineering, University of Exeter, Harrison Building, Streatham Campus, Exeter EX4 4AG, UK
| | - Martha E Zeeman
- Department of Bioengineering, School of Engineering and Applied Science, University of Pennsylvania, 210 South 33rd Street, Room 240 Skirkanich Hall, Philadelphia PA 19104
| | - William C Welch
- Department of Neurosurgery, University of Pennsylvania, Pennsylvania Hospital, Washington Square West Building, 235 South 8th Street, Philadelphia, PA 19106
| | - Beth A Winkelstein
- Department of Bioengineering, School of Engineering and Applied Science, University of Pennsylvania, 210 South 33rd Street, Room 240 Skirkanich Hall, Philadelphia PA 19104; Department of Neurosurgery, University of Pennsylvania, Pennsylvania Hospital, Washington Square West Building, 235 South 8th Street, Philadelphia, PA 19106
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16
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Mu D, Yu J, Lin J, Li C, Hao B, Gu F, Liu C, Tan L, Zhu D, Zhang X. Intermittent vibrations accelerate fracture healing in sheep. Acta Cir Bras 2019; 34:e201900702. [PMID: 31531537 PMCID: PMC6746562 DOI: 10.1590/s0102-865020190070000002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Revised: 05/15/2019] [Accepted: 06/13/2019] [Indexed: 11/22/2022] Open
Abstract
PURPOSE To investigate the effect of intermittent vibration at different intervals on bone fracture healing and optimize the vibration interval. METHODS Ninety sheep were randomized to receive no treatment (the control group), incision only (the sham control group), internal fixation with or without metatarsal fracture (the internal fixation group), and continuous vibration in addition to internal fixation of metatarsal fracture, or intermittent vibration at 1, 2, 3, 5, 7 and 17-day interval in addition to internal fixation of metatarsal fracture (the vibration group). Vibration was done at frequency F=35 Hz, acceleration a=0.25g, 15 min each time 2 weeks after bone fracture. Bone healing was evaluated by micro-CT scan, bone microstructure and mechanical compression of finite element simulation. RESULTS Intermittent vibration at 7-day interval significantly improved bone fracture healing grade. However, no significant changes on microstructure parameters and mechanical properties were observed among sheep receiving vibration at different intervals. CONCLUSIONS Clinical healing effects should be the top concern. Quantitative analyses of bone microstructure and of finite element mechanics on the process of fracture healing need to be further investigated.
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Affiliation(s)
- Degong Mu
- Bachelor, Operating Theatre 3, the First Hospital of Jilin University, Changchun, China. Conception and design of the study, analysis and interpretation of data, manuscript writing
| | - Jing Yu
- Master, Operating Theatre 1, the First Hospital of Jilin University, Changchun, China. Manuscript writing
| | - Junhao Lin
- Master, College of Mechanical Science and Engineering, Jilin University, Changchun, China. Statistics analysis
| | - Chen Li
- Master, Department of Orthopedic Traumatology, the First Hospital of Jilin University, Changchun, China. Technical procedures
| | - Baohui Hao
- Master, Department of Orthopedic Traumatology, the First Hospital of Jilin University, Changchun, China. Technical procedures, interpretation of data, critical revision
| | - Feng Gu
- Master, Department of Orthopedic Traumatology, the First Hospital of Jilin University, Changchun, China. Technical procedures, interpretation of data
| | - Chao Liu
- Master, Department of Orthopedic Traumatology, the First Hospital of Jilin University, Changchun, China. Statistics analysis
| | - Lei Tan
- PhD, Department of Orthopedic Traumatology, the First Hospital of Jilin University, Changchun, China. Analysis and interpretation of data, critical revision
| | - Dong Zhu
- PhD, Department of Orthopedic Traumatology, the First Hospital of Jilin University, Changchun, China. Conception and design of the study, analysis and interpretation of data, critical revision
| | - Xizheng Zhang
- PhD, Institute of Medical Equipment, Academy of Military Medical Sciences, Tianjin, China. Critical revision
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17
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Marín-Cascales E, Rubio-Arias JÁ, Alcaraz PE. Effects of Two Different Neuromuscular Training Protocols on Regional Bone Mass in Postmenopausal Women: A Randomized Controlled Trial. Front Physiol 2019; 10:846. [PMID: 31354513 PMCID: PMC6635564 DOI: 10.3389/fphys.2019.00846] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Accepted: 06/19/2019] [Indexed: 01/14/2023] Open
Abstract
Background: Osteoporosis is a condition associated with a greater incidence of fractures, and one of the main health-related concerns in postmenopausal women. To counteract possible reductions in bone properties, physical exercise has been proposed as an effective strategy. Particularly, training interventions with a high osteogenic potential are recommended. Purpose: To analyze the effect of 24 weeks of whole-body vibration and multi-component training on lumbar spine and femoral neck bone mass, and to determine what type of training produces greater adaptations in postmenopausal women. Methods: A total of 38 women completed the study (Clinical Gov database ID: NCT01966562). Participants were randomly assigned to one of the study groups: whole-body vibration group (WBVG), multi-component training group (MTG), or control group (CG). The experimental groups performed a progressive 24-week training (3 sessions/week) program. Bone mineral density (BMD) and bone mineral content (BMC) at the lumbar spine and femoral neck were assessed by Dual-energy X-ray absorptiometry. Results: Significantly and clinically relevant increases in lumbar spine bone mass (BMD: F = 3.29; p = 0.03; +5.15%; BMC: F = 2.90; p = 0.05; +10.58%) were observed in WBVG. MTG showed clinically important pre-post-changes on lumbar spine BMC (+7.78%), although there was no statistical significance (F = 1.97; p = 0.14). At the femoral neck, no statistically significant increases on bone mass were obtained in either training group. No changes were obtained in any variable in the CG. Additionally, no statistically significant differences were found between groups. Conclusion: The results indicated that 24 weeks of supervised WBV and MT may counteract the rapid loss of bone mass after the cessation of menstruation, thus improving postmenopausal women bone health. However, in the absence of statistically significant differences between groups, it is not possible to determine which training protocol produces greater adaptations. Clinical Trial Registration: www.ClinicalTrialsgov, identifier: NCT01966562.
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Affiliation(s)
- Elena Marín-Cascales
- Research Center for High Performance Sport, Catholic University of Murcia, Murcia, Spain
| | - Jacobo Á. Rubio-Arias
- Research Center for High Performance Sport, Catholic University of Murcia, Murcia, Spain
- Faculty of Sport Sciences, Catholic University of Murcia, Murcia, Spain
| | - Pedro E. Alcaraz
- Research Center for High Performance Sport, Catholic University of Murcia, Murcia, Spain
- Faculty of Sport Sciences, Catholic University of Murcia, Murcia, Spain
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18
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Yang F, Underdahl M, Yang H, Yang C. Effects of vibration intensity on lower limb joint moments during standing. J Biomech 2019; 88:18-24. [DOI: 10.1016/j.jbiomech.2019.03.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Revised: 02/15/2019] [Accepted: 03/04/2019] [Indexed: 01/06/2023]
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19
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Moazen M, Calder P, Koroma P, Wright J, Taylor S, Blunn G. An experimental evaluation of fracture movement in two alternative tibial fracture fixation models using a vibrating platform. Proc Inst Mech Eng H 2019; 233:595-599. [DOI: 10.1177/0954411919837304] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Several studies have investigated the effect of low-magnitude-high-frequency vibration on the outcome of fracture healing in animal models. The aim of this study was to quantify and compare the micromovement at the fracture gap in a tibial fracture fixed with an external fixator in both a surrogate model of a tibial fracture and a cadaver human leg under static loading, both subjected to vibration. The constructs were loaded under static axial loads of 50, 100, 150 and 200 N and then subjected to vibration at each load using a commercial vibration platform, using a DVRT sensor to quantify static and dynamic fracture movement. The overall stiffness of the cadaver leg was significantly higher than the surrogate model under static loading. This resulted in a significantly higher fracture movement in the surrogate model. Under vibration, the fracture movements induced at the fracture gap in the surrogate model and the cadaver leg were 0.024 ± 0.009 mm and 0.016 ± 0.002 mm, respectively, at 200 N loading. Soft tissues can alter the overall stiffness and fracture movement recorded in biomechanical studies investigating the effect of various devices or therapies. While the relative comparison between the devices or therapies may remain valid, absolute magnitude of recordings measured externally must be interpreted with caution.
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Affiliation(s)
- Mehran Moazen
- Department of Mechanical Engineering, University College London, London, UK
| | - Peter Calder
- Institute of Orthopaedics and Musculoskeletal Science, Division of Surgery & Interventional Science, University College London, Royal National Orthopaedic Hospital, Stanmore, UK
| | - Paul Koroma
- Institute of Orthopaedics and Musculoskeletal Science, Division of Surgery & Interventional Science, University College London, Royal National Orthopaedic Hospital, Stanmore, UK
| | - Jonathan Wright
- Institute of Orthopaedics and Musculoskeletal Science, Division of Surgery & Interventional Science, University College London, Royal National Orthopaedic Hospital, Stanmore, UK
| | - Stephen Taylor
- Institute of Orthopaedics and Musculoskeletal Science, Division of Surgery & Interventional Science, University College London, Royal National Orthopaedic Hospital, Stanmore, UK
| | - Gordon Blunn
- Institute of Orthopaedics and Musculoskeletal Science, Division of Surgery & Interventional Science, University College London, Royal National Orthopaedic Hospital, Stanmore, UK
- School of Pharmacy and Biomedical Sciences, University of Portsmouth, Portsmouth, UK
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20
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Chow DHK, Lee TY, Pope MH. Effects of whole body vibration on spinal proprioception in healthy individuals. Work 2019; 61:403-411. [PMID: 30373993 DOI: 10.3233/wor-182816] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND Low back pain (LBP) is a common health problem with high reoccurrence rate. As patients with LBP are often found to be proprioception impaired, new proprioception exercises should be explored. Whole body vibration (WBV) has been proven to improve muscle function and proprioception. OBJECTIVE The aim of this study was to determine the effects of WBV on spinal proprioception when WBV was administered in standing and seated postures. METHODS Twenty healthy male individuals (mean age: 23.2±1.2 years) were recruited and randomly assigned to two WBV groups: WBV in standing or WBV in seated posture. Their body posture, lumbar repositioning ability, maximum reaching distance and lumbopelvic coordination during dynamic motion in flexion and extension were assessed before, immediately after, 30 minutes after and 1 hour after 5 minutes of WBV (18 Hz, 6 mm amplitude) exposure. A Mixed ANOVA was used to analyze the effects of group and time factors on these four outcome measures. RESULTS There were no significant interaction (group and time) and group effects on all outcome measures. Participants were found to have significant different time effect on body posture, lumbar repositioning ability, maximum reaching distance and lumbopelvic coordination. CONCLUSIONS WBV could significantly improve spinal proprioception including body posture, lumbar repositioning ability, maximum reaching distance and lumbopelvic coordination in healthy individuals. WBV protocol is recommended to confirm its clinical application for improving spinal proprioception and its effects on patients with LBP is warranted.
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Affiliation(s)
- D H K Chow
- Department of Health & Physical Education, The Education University of Hong Kong, Tai Po, New Territories, Hong Kong
| | - T Y Lee
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hong Kong
| | - M H Pope
- Department of Occupational Medicine, University of Aberdeen, Aberdeen, Scotland, UK
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21
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Caryn RC, Dickey JP. Transmission of Acceleration From a Synchronous Vibration Exercise Platform to the Head During Dynamic Squats. Dose Response 2019; 17:1559325819827467. [PMID: 30833873 PMCID: PMC6393836 DOI: 10.1177/1559325819827467] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2018] [Revised: 12/28/2018] [Accepted: 01/08/2019] [Indexed: 11/28/2022] Open
Abstract
Many research studies have evaluated the effects of whole-body vibration exercise on muscular strength, standing balance, and bone density, but relatively few reports have evaluated safety issues for vibration exercises. Knee flexion reduces acceleration transmission to the head during static exercise. However, few studies have evaluated dynamic exercises. The purpose of this investigation was to evaluate the transmission of acceleration to the head during dynamic squats. Twelve participants performed dynamic squats (0°-40° of knee flexion) on a synchronous vertical whole-body vibration platform. Platform frequencies from 20 to 50 Hz were tested at a peak-to-peak nominal displacement setting of 1 mm. Transmissibilities from the platform to head varied depending on platform frequency and knee flexion angle. We observed amplification during 20 and 25 Hz platform vibration when knee flexion was <20°. Vibration from exercise platforms can be amplified as it is transmitted through the body to the head during dynamic squats. Similarly, this vibration energy contributes to observed injuries such as retinal detachment. It is recommended that knee flexion angles of at least 20° and vibration frequencies above 30 Hz are used when performing dynamic squat exercises with whole-body vibration.
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Affiliation(s)
- Robert C Caryn
- School of Kinesiology, Western University, London, Ontario, Canada
| | - James P Dickey
- School of Kinesiology, Western University, London, Ontario, Canada
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22
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Zaidell LN, Pollock RD, James DC, Bowtell JL, Newham DJ, Sumners DP, Mileva KN. Lower Body Acceleration and Muscular Responses to Rotational and Vertical Whole-Body Vibration at Different Frequencies and Amplitudes. Dose Response 2019; 17:1559325818819946. [PMID: 30670936 PMCID: PMC6327349 DOI: 10.1177/1559325818819946] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Revised: 10/23/2018] [Accepted: 11/20/2018] [Indexed: 12/02/2022] Open
Abstract
Aim: The aim of this study was to characterize acceleration transmission and neuromuscular responses to rotational vibration (RV) and vertical vibration (VV) at different frequencies and amplitudes. Methods: Twelve healthy males completed 2 experimental trials (RV vs VV) during which vibration was delivered during either squatting (30°; RV vs VV) or standing (RV only) with 20, 25, and 30 Hz, at 1.5 and 3.0 mm peak-to-peak amplitude. Vibration-induced accelerations were assessed with triaxial accelerometers mounted on the platform and bony landmarks at ankle, knee, and lumbar spine. Results: At all frequency/amplitude combinations, accelerations at the ankle were greater during RV (all P < .03) with the greatest difference observed at 30 Hz, 1.5 mm. Transmission of RV was also influenced by body posture (standing vs squatting, P < .03). Irrespective of vibration type, vibration transmission to all skeletal sites was generally greater at higher amplitudes but not at higher frequencies, especially above the ankle joint. Acceleration at the lumbar spine increased with greater vibration amplitude but not frequency and was highest with RV during standing. Conclusions/Implications: The transmission of vibration during whole-body vibration (WBV) is dependent on intensity and direction of vibration as well as body posture. For targeted mechanical loading at the lumbar spine, RV of higher amplitude and lower frequency vibration while standing is recommended. These results will assist with the prescription of WBV to achieve desired levels of mechanical loading at specific sites in the human body.
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Affiliation(s)
- Lisa N Zaidell
- Sport and Exercise Science Research Centre, London South Bank University, London, United Kingdom
| | - Ross D Pollock
- Centre of Human and Applied Physiological Sciences, King's College London, London, United Kingdom
| | - Darren C James
- Sport and Exercise Science Research Centre, London South Bank University, London, United Kingdom
| | - Joanna L Bowtell
- Sport and Health Sciences, University of Exeter, Exeter, United Kingdom
| | - Di J Newham
- Centre of Human and Applied Physiological Sciences, King's College London, London, United Kingdom
| | | | - Katya N Mileva
- Sport and Exercise Science Research Centre, London South Bank University, London, United Kingdom
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23
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Cooper RA, Tuakli-Wosornu YA, Henderson GV, Quinby E, Dicianno BE, Tsang K, Ding D, Cooper R, Crytzer TM, Koontz AM, Rice I, Bleakney AW. Engineering and Technology in Wheelchair Sport. Phys Med Rehabil Clin N Am 2018; 29:347-369. [PMID: 29627093 DOI: 10.1016/j.pmr.2018.01.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Technologies capable of projecting injury and performance metrics to athletes and coaches are being developed. Wheelchair athletes must be cognizant of their upper limb health; therefore, systems must be designed to promote efficient transfer of energy to the handrims and evaluated for simultaneous effects on the upper limbs. This article is brief review of resources that help wheelchair users increase physiologic response to exercise, develop ideas for adaptive workout routines, locate accessible facilities and outdoor areas, and develop wheelchair sports-specific skills.
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Affiliation(s)
- Rory A Cooper
- Human Engineering Research Laboratories, VA Pittsburgh Healthcare System, 6425 Penn Avenue, Suite 400, Pittsburgh, PA 15206, USA.
| | - Yetsa A Tuakli-Wosornu
- Yale University Orthopaedics & Rehabilitation, Yale Physicians Building, 800 Howard Avenue, New Haven, CT 06510, USA
| | - Geoffrey V Henderson
- Department of Physical Medicine & Rehabilitation, University of Pittsburgh, Kaufmann Medical Building, Suite 201, 3471 Fifth Avenue, Pittsburgh, PA 15213, USA
| | - Eleanor Quinby
- Department of Physical Medicine & Rehabilitation, University of Pittsburgh, Kaufmann Medical Building, Suite 201, 3471 Fifth Avenue, Pittsburgh, PA 15213, USA
| | - Brad E Dicianno
- Human Engineering Research Laboratories, VA Pittsburgh Healthcare System, 6425 Penn Avenue, Suite 400, Pittsburgh, PA 15206, USA
| | - Kalai Tsang
- Human Engineering Research Laboratories, VA Pittsburgh Healthcare System, 6425 Penn Avenue, Suite 400, Pittsburgh, PA 15206, USA
| | - Dan Ding
- Human Engineering Research Laboratories, VA Pittsburgh Healthcare System, 6425 Penn Avenue, Suite 400, Pittsburgh, PA 15206, USA
| | - Rosemarie Cooper
- Human Engineering Research Laboratories, VA Pittsburgh Healthcare System, 6425 Penn Avenue, Suite 400, Pittsburgh, PA 15206, USA
| | - Theresa M Crytzer
- Human Engineering Research Laboratories, VA Pittsburgh Healthcare System, 6425 Penn Avenue, Suite 400, Pittsburgh, PA 15206, USA
| | - Alicia M Koontz
- Human Engineering Research Laboratories, VA Pittsburgh Healthcare System, 6425 Penn Avenue, Suite 400, Pittsburgh, PA 15206, USA
| | - Ian Rice
- Department of Kinesiology & Community Health, University of Illinois at Urbana-Champaign, Urbana-Champaign, Illinois, Louise Freer Hall, 906 S. Goodwin Avenue, Urbana, IL 61801, USA
| | - Adam W Bleakney
- Disability Resources & Educational Services, University of Illinois at Urbana-Champaign, Urbana-Champaign, Illinois, 1207 S. Oak Street, Champaign, IL 61820, USA
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24
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Edwards WB, Simonian N, Haider IT, Anschel AS, Chen D, Gordon KE, Gregory EK, Kim KH, Parachuri R, Troy KL, Schnitzer TJ. Effects of Teriparatide and Vibration on Bone Mass and Bone Strength in People with Bone Loss and Spinal Cord Injury: A Randomized, Controlled Trial. J Bone Miner Res 2018; 33:1729-1740. [PMID: 29905973 DOI: 10.1002/jbmr.3525] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Revised: 05/21/2018] [Accepted: 06/03/2018] [Indexed: 01/29/2023]
Abstract
Spinal cord injury (SCI) is associated with marked bone loss and an increased risk of fracture. We randomized 61 individuals with chronic SCI and low bone mass to receive either teriparatide 20 μg/d plus sham vibration 10 min/d (n = 20), placebo plus vibration 10 min/d (n = 20), or teriparatide 20 μg/d plus vibration 10 min/d (n = 21). Patients were evaluated for 12 months; those who completed were given the opportunity to participate in an open-label extension where all participants (n = 25) received teriparatide 20 μg/d for an additional 12 months and had the optional use of vibration (10 min/d). At the end of the initial 12 months, both groups treated with teriparatide demonstrated a significant increase in areal bone mineral density (aBMD) at the spine (4.8% to 5.5%). The increase in spine aBMD was consistent with a marked response in serum markers of bone metabolism (ie, CTX, P1NP, BSAP), but no treatment effect was observed at the hip. A small but significant increase (2.2% to 4.2%) in computed tomography measurements of cortical bone at the knee was observed in all groups after 12 months; however, the magnitude of response was not different amongst treatment groups and improvements to finite element-predicted bone strength were not observed. Teriparatide treatment after the 12-month extension resulted in further increases to spine aBMD (total increase from baseline 7.1% to 14.4%), which was greater in patients initially randomized to teriparatide. Those initially randomized to teriparatide also demonstrated 4.4% to 6.7% improvements in hip aBMD after the 12-month extension, while all groups displayed increases in cortical bone measurements at the knee. To summarize, teriparatide exhibited skeletal activity in individuals with chronic SCI that was not augmented by vibration stimulation. Without additional confirmatory data, the location-specific responses to teriparatide would not be expected to provide clinical benefit in this population. © 2018 American Society for Bone and Mineral Research.
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Affiliation(s)
- W Brent Edwards
- Human Performance Laboratory, Faculty of Kinesiology, University of Calgary, Calgary, Canada.,McCaig Institute for Bone and Joint Health, Cumming School of Medicine, University of Calgary, Calgary, Canada
| | - Narina Simonian
- Department of Physical Medicine and Rehabilitation, Northwestern University Feinberg School of Medicine, Chicago, IL, USA.,Northwestern University Clinical and Translational Sciences Institute, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Ifaz T Haider
- Human Performance Laboratory, Faculty of Kinesiology, University of Calgary, Calgary, Canada.,McCaig Institute for Bone and Joint Health, Cumming School of Medicine, University of Calgary, Calgary, Canada
| | - Alan S Anschel
- Department of Physical Medicine and Rehabilitation, Northwestern University Feinberg School of Medicine, Chicago, IL, USA.,Rehabilitation Institute of Chicago (d.b.a. Shirley Ryan AbilityLab), Chicago, IL, USA
| | - David Chen
- Department of Physical Medicine and Rehabilitation, Northwestern University Feinberg School of Medicine, Chicago, IL, USA.,Rehabilitation Institute of Chicago (d.b.a. Shirley Ryan AbilityLab), Chicago, IL, USA
| | - Keith E Gordon
- Department of Physical Therapy and Human Movement Sciences, Northwestern University Feinberg School of Medicine, Chicago, IL, USA.,Edward Hines Jr. VA Hospital, Hines, IL, USA
| | - Elaine K Gregory
- Department of Physical Medicine and Rehabilitation, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Ki H Kim
- Department of Physical Medicine and Rehabilitation, Northwestern University Feinberg School of Medicine, Chicago, IL, USA.,Rehabilitation Institute of Chicago (d.b.a. Shirley Ryan AbilityLab), Chicago, IL, USA
| | | | - Karen L Troy
- Department of Biomedical Engineering, Worcester Polytechnic Institute, Worcester, MA, USA
| | - Thomas J Schnitzer
- Department of Physical Medicine and Rehabilitation, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
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25
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Marín-Cascales E, Alcaraz PE, Ramos-Campo DJ, Martinez-Rodriguez A, Chung LH, Rubio-Arias JÁ. Whole-body vibration training and bone health in postmenopausal women: A systematic review and meta-analysis. Medicine (Baltimore) 2018; 97:e11918. [PMID: 30142802 PMCID: PMC6112924 DOI: 10.1097/md.0000000000011918] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND The aims of the present systematic review and meta-analysis were to evaluate published, randomized controlled trials that investigate the effects on whole-body vibration (WBV) training on total, femoral neck, and lumbar spine bone mineral density (BMD) in postmenopausal women, and identify the potential moderating factors explaining the adaptations to such training. METHODS From a search of electronic databases (PubMed, Web of Science, and Cochrane) up until September 2017, a total 10 studies with 14 WBV groups met the inclusion criteria. Three different authors tabulated, independently, the selected indices in identical predetermined forms. The methodological quality of all studies was evaluated according to the modified PEDro scale. For each trial, differences within arms were calculated as mean differences (MDs) and their 95% confidence intervals between pre- and postintervention values. The effects on bone mass between exercise and control groups were also expressed as MDs. Both analyses were performed in the total sample and in a specific class of postmenopausal women younger than 65 years of age (excluding older women). RESULTS The BMD of 462 postmenopausal women who performed WBV or control protocol was evaluated. Significant pre-post improvements in BMD of the lumbar spine were identified following WBV protocols (P = .03). Significant differences in femoral neck BMD (P = .03) were also found between intervention and control groups when analyzing studies that included postmenopausal women younger than 65 years. CONCLUSIONS WBV is an effective method to improve lumbar spine BMD in postmenopausal and older women and to enhance femoral neck BMD in postmenopausal women younger than 65 years.
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Affiliation(s)
| | - Pedro E. Alcaraz
- Research Center for High Performance Sport
- Faculty of Sport Sciences – Catholic University of Murcia, UCAM, Murcia
| | - Domingo J. Ramos-Campo
- Research Center for High Performance Sport
- Faculty of Sport Sciences – Catholic University of Murcia, UCAM, Murcia
| | | | - Linda H. Chung
- Research Center for High Performance Sport
- Faculty of Sport Sciences – Catholic University of Murcia, UCAM, Murcia
| | - Jacobo Á. Rubio-Arias
- Research Center for High Performance Sport
- Faculty of Sport Sciences – Catholic University of Murcia, UCAM, Murcia
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26
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Baker MK, Peddle-McIntyre CJ, Galvão DA, Hunt C, Spry N, Newton RU. Whole Body Vibration Exposure on Markers of Bone Turnover, Body Composition, and Physical Functioning in Breast Cancer Patients Receiving Aromatase Inhibitor Therapy: A Randomized Controlled Trial. Integr Cancer Ther 2018; 17:968-978. [PMID: 29952241 PMCID: PMC6142085 DOI: 10.1177/1534735418781489] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Introduction: Women with breast cancer are often prescribed
aromatase inhibitors, which can cause rapid loss of bone mass leading to
significant potential for morbidity. Vibration training has been shown to be
helpful in reducing bone turnover in postmenopausal women without cancer.
Aim: To examine the effect of vibration stimulus on markers of
bone turnover in breast cancer patients receiving aromatase inhibitors.
Methods: Thirty-one breast cancer survivors undergoing
treatment with aromatase inhibitors were randomized to vibration stimulus (n =
14) or usual care control (n = 17). Low-frequency and low-magnitude vibration
stimulus (27-32 Hz, 0.3g) was delivered in supervised sessions
via standing on a vibration platform for 20 minutes, 3 times per week for 12
weeks. The primary outcome was blood markers of bone resorption (serum
N-telopeptide X/creatine) and formation (serum type 1 procollagen N-terminal
propeptide; P1NP). Other study outcomes body composition as well as measures of
physical functioning. Outcomes were compared between groups using analysis of
covariance adjusted for baseline values as well as time on aromatase inhibitors.
Outcomes: On average, participants were 61.5 years old and
overweight (ie, body mass index = 28.5 kg/m2). Following vibration
training, there was no significant difference between groups for bone resorption
(adjusted group difference 0.5, P = .929) or formation
(adjusted group difference 5.3, P = .286). There were also no
changes in any measure of physical functioning body composition.
Conclusions: Short-term low-magnitude vibration stimulus does
not appear to be useful for reducing markers of bone turnover secondary to
aromatase inhibitors in breast cancer patients; nor is it useful in improving
physical function or symptoms. However, further investigations with larger
samples and higher doses of vibration are warranted. Trial
Registration: Australian and New Zealand Clinical Trials Registry
(ACTRN12611001094965).
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Affiliation(s)
- Michael K Baker
- 1 Australian Catholic University, Strathfield, New South Wales, Australia
| | | | - Daniel A Galvão
- 2 Edith Cowan University, Joondalup, Western Australia, Australia
| | - Catherine Hunt
- 3 Sir Charles Gairdner Hospital, Nedlands, Western Australia, Australia
| | - Nigel Spry
- 2 Edith Cowan University, Joondalup, Western Australia, Australia.,3 Sir Charles Gairdner Hospital, Nedlands, Western Australia, Australia
| | - Robert U Newton
- 2 Edith Cowan University, Joondalup, Western Australia, Australia
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27
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Reina-Romo E, Rodríguez-Vallés J, Sanz-Herrera JA. In silico dynamic characterization of the femur: Physiological versus mechanical boundary conditions. Med Eng Phys 2018; 58:S1350-4533(18)30090-0. [PMID: 29945761 DOI: 10.1016/j.medengphy.2018.06.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Revised: 05/30/2018] [Accepted: 06/07/2018] [Indexed: 02/06/2023]
Abstract
It is established that bone tissue adapts and responds to mechanical loading. Several studies have suggested an existence of positive influence of vibration on the bone mass maintenance. Thus, some bone regeneration therapies are based on vibration of bone tissue under circumstances of disease to stimulate its formation. Frequency of loading should be properly selected and therefore a correct characterization of the dynamic properties of this tissue may be critical for the success of such orthopedic techniques. On the other hand, many studies implement vibration techniques with in silico models. Numerical results are exclusively dependent on properties of bone tissue, i.e. geometry, density distribution and stiffness, as well as boundary conditions. In the present study, the influence of boundary conditions and material properties on the dynamic characteristics of bone tissue was explored in a human femur. Bone shape and density were directly reconstructed from computer tomographies, whereas natural frequencies and modes of vibration were obtained for different boundary conditions including physiological and mechanical ones. Results of this study show the moderate effect of material properties compared to the much substantial effect of boundary conditions. A factor of 2 in the natural frequency was obtained depending on imposed boundary conditions, highlighting the importance in the selection of appropriate conditions in the analysis of the bone organ.
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Affiliation(s)
- E Reina-Romo
- School of Engineering, University of Seville, 41092 Seville, Spain
| | | | - J A Sanz-Herrera
- School of Engineering, University of Seville, 41092 Seville, Spain.
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28
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Use of whole body vibration in individuals with chronic stroke: Transmissibility and signal purity. J Biomech 2018; 73:80-91. [DOI: 10.1016/j.jbiomech.2018.03.022] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Revised: 01/18/2018] [Accepted: 03/09/2018] [Indexed: 11/23/2022]
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29
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Lam FMH, Tang CY, Kwok TCY, Pang MYC. Transmissibility and waveform purity of whole-body vibrations in older adults. Clin Biomech (Bristol, Avon) 2018; 51:82-90. [PMID: 29274598 DOI: 10.1016/j.clinbiomech.2017.12.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2017] [Revised: 12/10/2017] [Accepted: 12/13/2017] [Indexed: 02/07/2023]
Abstract
BACKGROUND This study examined the transmission power and waveform purity of vertical (synchronous) whole-body vibrations upon its propagation in the human body among older adults. METHODS Forty community-dwelling older adults participated in the study (33 women; mean age: 60.3 (SD 5.7) years). Four vibration frequencies (25, 30, 35, 40Hz), two amplitudes (0.6 and 0.9mm), and six different postures were tested. Skin-mounted tri-axial accelerometers were placed at the medial malleolus, tibial tuberosity, greater trochanter, third lumbar vertebra, and forehead. The transmissibility of vibration was computed as the ratio of the root-mean-square-acceleration at different body sites to that of the platform. Signal purity was expressed by the percentage of total transmitted power within 1Hz of the nominal frequency delivered by the platform. FINDINGS Vibration frequency and amplitude were inversely associated with transmissibility in all anatomical landmarks except the medial malleolus. Amplification of signals was noted at the medial malleolus in most testing conditions. The effect of posture on whole-body vibration transmission depends on its frequency and amplitude. In general, toe-standing led to the lowest transmissibility. Single-leg standing had the highest vibration transmission to the hip, while erect standing had the highest transmissibility to the head. The purity of waveform of the vibration signals was well conserved as the vibrations were transmitted from the feet to the upper body. INTERPRETATION Whole-body vibration transmissibility was highly influenced by signal frequency, amplitude and posture. These parameters should be carefully considered when prescribing whole-body vibration to older adults.
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Affiliation(s)
- Freddy Man Hin Lam
- Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hong Kong.
| | - Chak-Yin Tang
- Department of Industrial and Systems Engineering, The Hong Kong Polytechnic University, Hong Kong
| | - Timothy Chi Yui Kwok
- Department of Medicine and Therapeutics, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong
| | - Marco Yiu Chung Pang
- Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hong Kong
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30
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Frederico ÉHFF, de Sá-Caputo DDC, Moreira-Marconi E, Guimarães CAS, Cardoso ALBD, Dionello CDF, Morel DS, Sousa-Gonçalves CR, Paineiras-Domingos LL, Cavalcanti RGC, Asad NR, Marin PJ, Bernardo-Filho M. EFFECT OF MECHANICAL VIBRATION GENERATED IN OSCILLATING/VIBRATORY PLATFORM ON THE CONCENTRATION OF PLASMA BIOMARKERS AND ON THE WEIGHT IN RATS. AFRICAN JOURNAL OF TRADITIONAL, COMPLEMENTARY, AND ALTERNATIVE MEDICINES 2017; 14:52-58. [PMID: 28740944 PMCID: PMC5514439 DOI: 10.21010/ajtcam.v14i4s.7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Background: Whole body vibration (WBV) exercise has been used in health sciences. Authors have reported that changes on the concentration of plasma biomarkers could be associated with the WBV effects. The aim of this investigation is to assess the consequences of exposition of 25 Hz mechanical vibration generated in oscillating/vibratory platform (OVP) on the concentration of some plasma biomarkers and on the weight of rats. Materials and Methods: Wistar rats were divided into two groups. The animals of the Experimental Group (EG) were submitted to vibration (25 Hz) generated in an OVP with four bouts of 30 seconds with rest time of 60 seconds between the bouts. This procedure was performed daily for 12 days. The animals of the control group (CG) were not exposed to vibration. Results: Our findings show that the WBV exercise at 25 Hz was not capable to alter significantly (p<0.05) the weight of the rats. A significant alteration in the concentrations of amylase was found. Conclusion: Our results indicate a modulation of the WBV exercise with vibration of 25 Hz of frequency (i) in the pathways related to the weight and (ii) in the concentration of some biomarkers, such as amylase.
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Affiliation(s)
- Éric Heleno Freire Ferreira Frederico
- Departamento de Biofísica e Biometria, Instituto de Biologia Roberto Alcantara Gomes, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ, Brazil.,Programa de Pós-Graduação em Biociências, Instituto de Biologia Roberto Alcantara Gomes, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Danúbia da Cunha de Sá-Caputo
- Departamento de Biofísica e Biometria, Instituto de Biologia Roberto Alcantara Gomes, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ, Brazil.,Programa de Pós-Graduação em Fisiopatologia Clínica e Experimental, Faculdade de Ciências Médicas, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Eloá Moreira-Marconi
- Departamento de Biofísica e Biometria, Instituto de Biologia Roberto Alcantara Gomes, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ, Brazil.,Programa de Pós-Graduação em Fisiopatologia Clínica e Experimental, Faculdade de Ciências Médicas, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Carlos Alberto Sampaio Guimarães
- Departamento de Biofísica e Biometria, Instituto de Biologia Roberto Alcantara Gomes, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - André Luiz Bandeira Dionísio Cardoso
- Departamento de Biofísica e Biometria, Instituto de Biologia Roberto Alcantara Gomes, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ, Brazil.,Programa de Pós-Graduação em Ciências Médicas, Faculdade de Ciências Médicas, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Carla da Fontoura Dionello
- Departamento de Biofísica e Biometria, Instituto de Biologia Roberto Alcantara Gomes, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ, Brazil.,Programa de Pós-Graduação em Ciências Médicas, Faculdade de Ciências Médicas, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Danielle Soares Morel
- Departamento de Biofísica e Biometria, Instituto de Biologia Roberto Alcantara Gomes, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ, Brazil.,Programa de Pós-Graduação em Ciências Médicas, Faculdade de Ciências Médicas, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Cintia Renata Sousa-Gonçalves
- Departamento de Biofísica e Biometria, Instituto de Biologia Roberto Alcantara Gomes, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ, Brazil.,Programa de Pós-Graduação em Ciências Médicas, Faculdade de Ciências Médicas, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Laisa Liana Paineiras-Domingos
- Departamento de Biofísica e Biometria, Instituto de Biologia Roberto Alcantara Gomes, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ, Brazil.,Programa de Pós-Graduação em Ciências Médicas, Faculdade de Ciências Médicas, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Rebeca Graça Costa Cavalcanti
- Departamento de Biofísica e Biometria, Instituto de Biologia Roberto Alcantara Gomes, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ, Brazil.,Mestrado Profissional em Saúde, Medicina Laboratorial e Tecnologia Forense, Instituto de Biologia Roberto Alcântara Gomes, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Nasser Ribeiro Asad
- Departamento de Biofísica e Biometria, Instituto de Biologia Roberto Alcantara Gomes, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Pedro Jesus Marin
- Universidad Europea Miguel de Cervantes, Laboratorio de Fisiologia, Valladolid, Spain
| | - Mario Bernardo-Filho
- Departamento de Biofísica e Biometria, Instituto de Biologia Roberto Alcantara Gomes, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
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Spörri J, Kröll J, Fasel B, Aminian K, Müller E. The Use of Body Worn Sensors for Detecting the Vibrations Acting on the Lower Back in Alpine Ski Racing. Front Physiol 2017; 8:522. [PMID: 28775695 PMCID: PMC5517454 DOI: 10.3389/fphys.2017.00522] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2017] [Accepted: 07/06/2017] [Indexed: 01/09/2023] Open
Abstract
This study explored the use of body worn sensors to evaluate the vibrations that act on the human body in alpine ski racing from a general and a back overuse injury prevention perspective. In the course of a biomechanical field experiment, six male European Cup-level athletes each performed two runs on a typical giant slalom (GS) and slalom (SL) course, resulting in a total of 192 analyzed turns. Three-dimensional accelerations were measured by six inertial measurement units placed on the right and left shanks, right and left thighs, sacrum, and sternum. Based on these data, power spectral density (PSD; i.e., the signal's power distribution over frequency) was determined for all segments analyzed. Additionally, as a measure expressing the severity of vibration exposure, root-mean-square (RMS) acceleration acting on the lower back was calculated based on the inertial acceleration along the sacrum's longitudinal axis. In both GS and SL skiing, the PSD values of the vibrations acting at the shank were found to be largest for frequencies below 30 Hz. While being transmitted through the body, these vibrations were successively attenuated by the knee and hip joint. At the lower back (i.e., sacrum sensor), PSD values were especially pronounced for frequencies between 4 and 10 Hz, whereas a corresponding comparison between GS and SL revealed higher PSD values and larger RMS values for GS. Because vibrations in this particular range (i.e., 4 to 10 Hz) include the spine's resonant frequency and are known to increase the risk of structural deteriorations/abnormalities of the spine, they may be considered potential components of mechanisms leading to overuse injuries of the back in alpine ski racing. Accordingly, any measure to control and/or reduce such skiing-related vibrations to a minimum should be recognized and applied. In this connection, wearable sensor technologies might help to better monitor and manage the overall back overuse-relevant vibration exposure of athletes in regular training and or competition settings in the near future.
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Affiliation(s)
- Jörg Spörri
- Department of Sport Science and Kinesiology, University of SalzburgHallein-Rif, Austria.,Department of Orthopedics, Balgrist University Hospital, Zurich, University of ZurichZurich, Switzerland
| | - Josef Kröll
- Department of Sport Science and Kinesiology, University of SalzburgHallein-Rif, Austria
| | - Benedikt Fasel
- Laboratory of Movement Analysis and Measurement, École Polytechnique Fédérale de LausanneLausanne, Switzerland
| | - Kamiar Aminian
- Laboratory of Movement Analysis and Measurement, École Polytechnique Fédérale de LausanneLausanne, Switzerland
| | - Erich Müller
- Department of Sport Science and Kinesiology, University of SalzburgHallein-Rif, Austria
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Mogil RJ, Kaste SC, Ferry RJ, Hudson MM, Mulrooney DA, Howell CR, Partin RE, Srivastava DK, Robison LL, Ness KK. Effect of Low-Magnitude, High-Frequency Mechanical Stimulation on BMD Among Young Childhood Cancer Survivors: A Randomized Clinical Trial. JAMA Oncol 2017; 2:908-14. [PMID: 26967465 DOI: 10.1001/jamaoncol.2015.6557] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
IMPORTANCE Bone accrual during youth is critical to establish sufficient strength for lifelong skeletal health. Children with cancer may develop low bone mineral density (BMD) any time before or after diagnosis. OBJECTIVE To evaluate the ability of low-magnitude, high-frequency mechanical stimulation to enhance BMD among childhood cancer survivors. DESIGN, SETTING, AND PARTICIPANTS Double-blind randomized clinical trial conducted at St Jude Children's Research Hospital from June 1, 2010, to January 22, 2013, using cancer survivors, ages 7 to 17 years, who were previously treated at St Jude Children's Research Hospital, were in remission, and at least 5 years from diagnosis, with whole-body or lumbar spine BMD z scores of -1.0 or lower. Participants were randomized (stratified by sex and Tanner stage) to either a placebo device or low-magnitude, high-frequency mechanical stimulation device, which was used at home. INTERVENTIONS Placebo or low-magnitude, high-frequency mechanical stimulation (0.3 g; 32-37 Hz) for 2 sessions lasting 10 minutes each, 7 days per week for 1 year. All participants were prescribed daily cholecalciferol (vitamin D) and calcium. MAIN OUTCOMES AND MEASURES Changes in areal and volumetric BMD and bone biomarkers were compared by analysis of variance, adjusted for strata. RESULTS Of the 65 participants, 32 were randomized to the intervention group (mean [SD] age was 13.6 [3.7] years, 18 [56.2%] were male, and 27 [84.4%] were white), and 33 were randomized to the placebo group (mean [SD] age was 13.6 [2.9] years, 17 [51.5%] were male, and 26 [78.8%] were white). Forty-eight participants completed the trial, 22 in the intervention group and 26 in the placebo group with median adherence of 70.1% for intervention and 63.7% for placebo groups. With intention-to-treat analysis, mean (SD) whole-body BMD z score by dual x-ray absorptiometry improved by 0.25 (0.78) in the intervention (n = 22), but decreased by -0.19 (0.79) in the placebo group (n = 26, P = .05). Circulating osteocalcin at 12 months correlated with change in total body BMD (r = 0.35, P = .02). Tibial trabecular bone among participants completing 70% or more of the prescribed sessions increased by a mean of 11.2% (95% CI, 5.2 to 17.2%) compared with those completing less than 70% who decreased by a mean of -1.3% (95% CI, -7.3 to 4.7%; P = .02). Change in circulating receptor activator of nuclear factor κ-B ligand was higher in the intervention than in the placebo group (0.06 [0.16] vs -0.04 [0.17] pmol/L) (P = .04). CONCLUSIONS AND RELEVANCE Pediatric cancer survivors with low BMD may benefit from low-magnitude, high-frequency mechanical stimulation as a novel and safe intervention to optimize peak bone mass during youth, alone or in conjunction with other therapies. TRIAL REGISTRATION clinicaltrials.gov Identifier: NCT01010230.
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Affiliation(s)
- Rona J Mogil
- Department of Epidemiology and Cancer Control, St Jude Children's Research Hospital, Memphis, Tennessee
| | - Sue C Kaste
- Department of Diagnostic Imaging, St Jude Children's Research Hospital, Memphis, Tennessee3Department of Radiology, University of Tennessee Health Science Center, Memphis
| | - Robert J Ferry
- Department of Pediatrics, University of Tennessee Health Science Center, Memphis5Department of Psychology, University of Memphis, Memphis, Tennessee
| | - Melissa M Hudson
- Department of Oncology, St Jude Children's Research Hospital, Memphis, Tennessee
| | - Daniel A Mulrooney
- Department of Oncology, St Jude Children's Research Hospital, Memphis, Tennessee
| | - Carrie R Howell
- Department of Epidemiology and Cancer Control, St Jude Children's Research Hospital, Memphis, Tennessee
| | - Robyn E Partin
- Department of Epidemiology and Cancer Control, St Jude Children's Research Hospital, Memphis, Tennessee
| | - Deo K Srivastava
- Department of Biostatistics, St Jude Children's Research Hospital, Memphis, Tennessee
| | - Leslie L Robison
- Department of Epidemiology and Cancer Control, St Jude Children's Research Hospital, Memphis, Tennessee
| | - Kirsten K Ness
- Department of Epidemiology and Cancer Control, St Jude Children's Research Hospital, Memphis, Tennessee8Department of Pediatric Medicine, St Jude Children's Research Hospital, Memphis, Tennessee
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Matsumoto T, Goto D. Effect of low-intensity whole-body vibration on bone defect repair and associated vascularization in mice. Med Biol Eng Comput 2017; 55:2257-2266. [PMID: 28660538 DOI: 10.1007/s11517-017-1664-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2016] [Accepted: 06/10/2017] [Indexed: 01/29/2023]
Abstract
Low-intensity whole-body vibration (LIWBV) may stimulate bone healing, but the involvement of vascular ingrowth, which is essential for bone regeneration, has not been well examined. We thus investigated the LIWBV effect on vascularization during early-stage bone healing. Mice aged 13 weeks were subjected to cortical drilling on tibial bone. Two days after surgery (day 0), mice were exposed daily to sine-wave LIWBV at 30 Hz and 0.1 g peak-to-peak acceleration for 20 min/day (Vib) or were sham-treated (sham). Following vascular casting with a zirconium-based contrast agent on days 6, 9, or 12 and sacrifice, vascular and bone images were obtained by K-edge subtraction micro-CT using synchrotron lights. Bone regeneration advanced more in the Vib group from days 9 to 12. The vascular volume fraction decreased from days 6 to 9 in both groups; however, from days 9 to 12, it was increased in shams, while it stabilized in the Vib group. The vascular volume fraction tended to be or was smaller in the Vib group on days 6 and 12. The vessel number density was higher on day 9 but lower on day 12 in the Vib group. These results suggest that the LIWBV-promoted bone repair is associated with the modulation of vascularization, but additional studies are needed to determine the causality of this association.
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Affiliation(s)
- Takeshi Matsumoto
- Department of Mechanical Science, Tokushima University Graduate School of Science and Technology, 2-1 Minamijosanjima, Tokushima, 770-8506, Japan. .,Department of Mechanical Science and Bioengineering, Osaka University Graduate School of Engineering Science, 1-3 Machikaneyama, Toyonaka, 560-8531, Japan.
| | - Daichi Goto
- Department of Mechanical Science and Bioengineering, Osaka University Graduate School of Engineering Science, 1-3 Machikaneyama, Toyonaka, 560-8531, Japan
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Junbo W, Sijia L, Hongying C, Lei L, Pu W. Effect of low-magnitude different-frequency whole-body vibration on subchondral trabecular bone microarchitecture, cartilage degradation, bone/cartilage turnover, and joint pain in rabbits with knee osteoarthritis. BMC Musculoskelet Disord 2017; 18:260. [PMID: 28619022 PMCID: PMC5472960 DOI: 10.1186/s12891-017-1579-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Accepted: 05/14/2017] [Indexed: 02/05/2023] Open
Abstract
Backgroud Whole-body vibration(WBV) has been suggested for the prevention of subchondral bone loss of knee osteoarthritis (OA) . This study examined the effects of different frequency of whole-body vibration on subchondral trabecular bone microarchitecture, cartilage degradation and metabolism of the tibia and femoral condyle bone, and joint pain in an anterior cruciate ligament transection (ACLT)–induced knee osteoarthritisrabbit model. Method Ninety adult rabbits were divided into six groups: all groups received unilateral ACLT; Group 1, ACLT only; Group 2, 5 Hz WBV; Group 3, 10 Hz WBV; Group 4, 20 Hz WBV; Group 5, 30 Hz WBV; and Group 6, 40 Hz WBV. Pain was tested via weight-bearing asymmetry. Subchondral trabecular bone microarchitecture was examined using in vivo micro-computed tomography. Knee joint cartilage was evaluated by gross morphology, histology, and ECM gene expression level (aggrecan and type II collagen [CTX-II]). Serum bone-specific alkaline phosphatase, N-mid OC, cartilage oligometric protein, CPII, type I collagen, PIIANP, G1/G2 aggrecan levels, and urinary CTX-II were analyzed. Results After 8 weeks of low-magnitude WBV, the lower frequency (10 Hz and 20 Hz) WBV treatment decreased joint pain and cartilage resorption, accelerated cartilage formation, delayed cartilage degradation especially at the 20 Hz regimen. However, the higher frequencies (30 Hz and 40 Hz) had worse effects, with worse limb function and cartilage volume as well as higher histological scores and cartilage resorption. In contrast, both prevented loss of trabeculae and increased bone turnover. No significant change was observed in the 5 Hz WBV group. Conclusion Our data demonstrate that the lower frequencies (10 Hz and 20 Hz) of low-magnitude WBV increased bone turnover, delayed cartilage degeneration, and caused a significant functional change of the OA-affected limb in ACLT-induced OA rabbit model but did not reverse OA progression after 8 weeks of treatment.
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Affiliation(s)
- Wang Junbo
- Department of Orthopaedics, West China Hospital, Sichuan University, GuoXue Road 37, 610041, Chengdu, Sichuan, People's Republic of China
| | - Liu Sijia
- Rehabilitation Medicine Center, West China Hospital, Sichuan University, Chengdu, Sichuan, People's Republic of China
| | - Chen Hongying
- Key Laboratory of Rehabilitation Medicine in Sichuan, Chengdu, Sichuan, People's Republic of China
| | - Liu Lei
- Department of Orthopaedics, West China Hospital, Sichuan University, GuoXue Road 37, 610041, Chengdu, Sichuan, People's Republic of China.
| | - Wang Pu
- Department of rehabilitation medicine, Ruijin hospital, Shanghai Jiaotong University School of Medicine, Shanghai, People's Republic of China. .,Department of Rehabilitation Science, Shanghai Jiaotong University School of Medicine, Shanghai, People's Republic of China. .,Rui Jin Rehabilitation Hospital, Shanghai, People's Republic of China.
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35
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Pham MH, Buser Z, Wang JC, Acosta FL. Low-magnitude mechanical signals and the spine: A review of current and future applications. J Clin Neurosci 2017; 40:18-23. [DOI: 10.1016/j.jocn.2016.12.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2016] [Accepted: 12/27/2016] [Indexed: 01/17/2023]
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Petryk A, Polgreen LE, Grames M, Lowe DA, Hodges JS, Karachunski P. Feasibility and tolerability of whole-body, low-intensity vibration and its effects on muscle function and bone in patients with dystrophinopathies: a pilot study. Muscle Nerve 2017; 55:875-883. [PMID: 27718512 PMCID: PMC5385164 DOI: 10.1002/mus.25431] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2016] [Revised: 10/03/2016] [Accepted: 10/06/2016] [Indexed: 12/12/2022]
Abstract
Introduction Dystrophinopathies are X‐linked muscle degenerative disorders that result in progressive muscle weakness complicated by bone loss. This study's goal was to evaluate feasibility and tolerability of whole‐body, low‐intensity vibration (WBLIV) and its potential effects on muscle and bone in patients with Duchenne or Becker muscular dystrophy. Methods This 12‐month pilot study included 5 patients (age 5.9–21.7 years) who used a low‐intensity Marodyne LivMD plate vibrating at 30–90 Hz for 10 min/day for the first 6 months. Timed motor function tests, myometry, and peripheral quantitative computed tomography were performed at baseline and at 6 and 12 months. Results Motor function and lower extremity muscle strength remained either unchanged or improved during the intervention phase, followed by deterioration after WBLIV discontinuation. Indices of bone density and geometry remained stable in the tibia. Conclusions WBLIV was well tolerated and appeared to have a stabilizing effect on lower extremity muscle function and bone measures. Muscle Nerve55: 875–883, 2017
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Affiliation(s)
- Anna Petryk
- Division of Pediatric Endocrinology, University of Minnesota Masonic Children's Hospital, 2450 Riverside Avenue, Minneapolis, Minnesota, 55454, USA.,Department of Pediatrics, University of Minnesota, Minneapolis, Minnesota, USA
| | - Lynda E Polgreen
- Division of Pediatric Endocrinology and Metabolism, Los Angeles Biomedical Research Institute at Harbor-UCLA Medical Center, Torrance, California, USA
| | - Molly Grames
- Department of Neurology, University of Minnesota, Minneapolis, Minnesota, USA
| | - Dawn A Lowe
- Department of Physical Medicine and Rehabilitation, University of Minnesota, Minneapolis, Minnesota, USA
| | - James S Hodges
- Division of Biostatistics, University of Minnesota, Minneapolis, Minnesota, USA
| | - Peter Karachunski
- Department of Pediatrics, University of Minnesota, Minneapolis, Minnesota, USA.,Department of Neurology, University of Minnesota, Minneapolis, Minnesota, USA
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Older adults show higher increases in lower-limb muscle activity during whole-body vibration exercise. J Biomech 2017; 52:55-60. [DOI: 10.1016/j.jbiomech.2016.12.009] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2015] [Revised: 08/03/2016] [Accepted: 12/09/2016] [Indexed: 11/24/2022]
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38
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Moreira-Marconi E, Dionello CF, Morel DS, Sá-Caputo DC, Souza-Gonçalves CR, Paineiras-Domingos LL, Guedes-Aguiar EO, Marin PJ, Cruz BDP, Bernardo-Filho M. Could whole body vibration exercises influence the risk factors for fractures in women with osteoporosis? Osteoporos Sarcopenia 2016; 2:214-220. [PMID: 30775489 PMCID: PMC6372741 DOI: 10.1016/j.afos.2016.09.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Revised: 09/19/2016] [Accepted: 09/25/2016] [Indexed: 02/09/2023] Open
Abstract
Objective The aim of this study was to review the literature about the relevance of the whole body vibration (WBV) in decreasing the number of fractures in osteoporotic women. Methods Searches were performed by three independent researchers through the PubMed and PEDro databases. Results Only 0.1% of the publications with "Fracture and osteoporosis" have a relation with WBV exercise. The achievements have revealed a positive effect of this exercise in patients with risk factors for fractures like osteoporosis. Protocols were performed two to three times a week, from 6 up to 18 months, and with 12.6 up to 40 Hz as frequencies. Different tools were used to evaluate the effects of the WBV exercise in conditions that could cause fractures in postmenopausal women. Conclusions Although the paucity of research regarding direct effects of WBV in decreasing fractures, WBV could be a feasible and effective way to modify well-recognized risk factors for falls and fractures, improvements in some aspects of neuromuscular function and balance. More studies have to be performed establish protocols with well controlled parameters.
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Affiliation(s)
- Eloá Moreira-Marconi
- Programa de Pós-graduação em Fisiopatologia Clínica e Experimental, Faculdade de Ciências Médicas, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ, Brazil.,Laboratório de Vibrações Mecânicas e Práticas Integrativas e Complementares - LAVIMPIC, Departamento de Biofísica e Biometria, Instituto de Biologia Roberto Alcântara Gomes, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Carla F Dionello
- Laboratório de Vibrações Mecânicas e Práticas Integrativas e Complementares - LAVIMPIC, Departamento de Biofísica e Biometria, Instituto de Biologia Roberto Alcântara Gomes, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ, Brazil.,Programa de Pós-graduação em Ciências Médicas, Faculdade de Ciências Médicas, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Danielle S Morel
- Laboratório de Vibrações Mecânicas e Práticas Integrativas e Complementares - LAVIMPIC, Departamento de Biofísica e Biometria, Instituto de Biologia Roberto Alcântara Gomes, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ, Brazil.,Programa de Pós-graduação em Ciências Médicas, Faculdade de Ciências Médicas, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Danubia C Sá-Caputo
- Programa de Pós-graduação em Fisiopatologia Clínica e Experimental, Faculdade de Ciências Médicas, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ, Brazil.,Laboratório de Vibrações Mecânicas e Práticas Integrativas e Complementares - LAVIMPIC, Departamento de Biofísica e Biometria, Instituto de Biologia Roberto Alcântara Gomes, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Cintia R Souza-Gonçalves
- Laboratório de Vibrações Mecânicas e Práticas Integrativas e Complementares - LAVIMPIC, Departamento de Biofísica e Biometria, Instituto de Biologia Roberto Alcântara Gomes, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ, Brazil.,Programa de Pós-graduação em Ciências Médicas, Faculdade de Ciências Médicas, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Laisa L Paineiras-Domingos
- Laboratório de Vibrações Mecânicas e Práticas Integrativas e Complementares - LAVIMPIC, Departamento de Biofísica e Biometria, Instituto de Biologia Roberto Alcântara Gomes, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ, Brazil.,Programa de Pós-graduação em Ciências Médicas, Faculdade de Ciências Médicas, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Eliane O Guedes-Aguiar
- Laboratório de Vibrações Mecânicas e Práticas Integrativas e Complementares - LAVIMPIC, Departamento de Biofísica e Biometria, Instituto de Biologia Roberto Alcântara Gomes, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ, Brazil.,Programa de Pós-graduação em Ciências da Saúde, Centro de Ciências da Saúde, Universidade Federal do Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil
| | | | | | - Mario Bernardo-Filho
- Laboratório de Vibrações Mecânicas e Práticas Integrativas e Complementares - LAVIMPIC, Departamento de Biofísica e Biometria, Instituto de Biologia Roberto Alcântara Gomes, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
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Luo X, Zhang J, Zhang C, He C, Wang P. The effect of whole-body vibration therapy on bone metabolism, motor function, and anthropometric parameters in women with postmenopausal osteoporosis. Disabil Rehabil 2016; 39:2315-2323. [PMID: 27718643 DOI: 10.1080/09638288.2016.1226417] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Xiaotian Luo
- Rehabilitation Medicine Center, Sichuan University, West China Hospital, Chengdu, Sichuan, PR China
- Key Laboratory of Rehabilitation Medicine in Sichuan, Chengdu, Sichuan, PR China
| | - Jifeng Zhang
- Department of General surgery Medicine, Datong Second People's Hospital, Datong, Shanxi, PR China
| | - Chi Zhang
- Rehabilitation Medicine Center, Sichuan University, West China Hospital, Chengdu, Sichuan, PR China
- Key Laboratory of Rehabilitation Medicine in Sichuan, Chengdu, Sichuan, PR China
| | - Chengqi He
- Rehabilitation Medicine Center, Sichuan University, West China Hospital, Chengdu, Sichuan, PR China
- Key Laboratory of Rehabilitation Medicine in Sichuan, Chengdu, Sichuan, PR China
| | - Pu Wang
- Rehabilitation Medicine Center, Sichuan University, West China Hospital, Chengdu, Sichuan, PR China
- Key Laboratory of Rehabilitation Medicine in Sichuan, Chengdu, Sichuan, PR China
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Halsberghe BT, Gordon-Ross P, Peterson R. Whole body vibration affects the cross-sectional area and symmetry of the m. multifidus
of the thoracolumbar spine in the horse. EQUINE VET EDUC 2016. [DOI: 10.1111/eve.12630] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | - P. Gordon-Ross
- Western University of Health Sciences College of Veterinary Medicine; Pomona California USA
| | - R. Peterson
- Peninsula Equine Medical Center; Menlo Park California USA
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Oliveira LC, Oliveira RG, Pires-Oliveira DAA. Effects of whole body vibration on bone mineral density in postmenopausal women: a systematic review and meta-analysis. Osteoporos Int 2016; 27:2913-33. [PMID: 27145947 DOI: 10.1007/s00198-016-3618-3] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2016] [Accepted: 04/26/2016] [Indexed: 10/21/2022]
Abstract
UNLABELLED This systematic review and meta-analysis of randomized controlled trials (RCTs) identified significant effects of whole body vibration (WBV) on bone mineral density (BMD) of the lumbar spine (in the sensitivity analysis and seven subgroup analyses), femoral neck (in one subgroup analysis), and trochanter (four subgroup analyses) in postmenopausal women, but not other measurements of BMD. INTRODUCTION Interventions using WBV training have been conducted in postmenopausal women, aimed at increasing BMD; however, the results are contradictory. Our objective is to conduct a systematic review and meta-analysis of RCTs examining WBV effect on BMD. METHODS RCTs were considered eligible, with follow-up ≥6 months, which verified the effects of WBV on the BMD of postmenopausal women. The calculations of the meta-analysis were performed through the weighted mean difference between the WBV and control groups, or the WBV and combined training, through the absolute change between pre- and post-intervention in the areal bone mineral density (aBMD) or trabecular volumetric bone mineral density (vBMDt). RESULTS Fifteen RCTs were included in the meta-analysis. No differences were observed in the primary analysis. WBV was found to improve aBMD compared with the control group, after exclusion of studies with low quality methodological (lumbar spine), when excluding the studies which combined WBV with medication or combined training (lumbar spine), with the use of low frequency and high magnitude (lumbar spine and trochanter), high frequency and low magnitude (lumbar spine), high cumulative dose and low magnitude (lumbar spine), low cumulative dose and high magnitude (lumbar spine and trochanter), with semi-flexed knee (lumbar spine, femoral neck, and trochanter), and side-alternating type of vibration (lumbar spine and trochanter). CONCLUSIONS Despite WBV presenting potential to act as a coadjuvant in the prevention or treatment of osteoporosis, especially for aBMD of the lumbar spine, the ideal intervention is not yet clear. Our subgroup analyses helped to demonstrate the various factors which appear to influence the effects of WBV on BMD, contributing to clinical practice and the definition of protocols for future interventions.
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Affiliation(s)
- L C Oliveira
- Centro de Ciências Biológicas e da Saúde, Universidade Norte do Paraná (UNOPAR), Londrina, PR, Brazil.
- Centro de Ciências da Saúde, Universidade Estadual do Norte do Paraná (UENP), Alameda Padre Magno, 841, Nova Alcântara, CEP: 86.400-000, Jacarezinho, PR, Brazil.
| | - R G Oliveira
- Centro de Ciências Biológicas e da Saúde, Universidade Norte do Paraná (UNOPAR), Londrina, PR, Brazil
- Centro de Ciências da Saúde, Universidade Estadual do Norte do Paraná (UENP), Alameda Padre Magno, 841, Nova Alcântara, CEP: 86.400-000, Jacarezinho, PR, Brazil
| | - D A A Pires-Oliveira
- Centro de Ciências Biológicas e da Saúde, Universidade Norte do Paraná (UNOPAR), Londrina, PR, Brazil
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The effects of photobiomodulation and low-amplitude high-frequency vibration on bone healing process: a comparative study. Lasers Med Sci 2016; 31:1827-1836. [DOI: 10.1007/s10103-016-2058-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2016] [Accepted: 08/17/2016] [Indexed: 10/21/2022]
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Ashnagar Z, Shadmehr A, Hadian M, Talebian S, Jalaei S. The effects of whole body vibration on EMG activity of the upper extremity muscles in static modified push up position. J Back Musculoskelet Rehabil 2016; 29:557-63. [PMID: 26836840 DOI: 10.3233/bmr-160657] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND Whole Body Vibration (WBV) has been reported to change neuromuscular activity which indirectly assessed by electromyography (EMG). Although researches regarding the influence of WBV on EMG activity of the upper extremity muscles are in their infancy, contradictory findings have been reported as a result of dissimilar protocols. OBJECTIVE The purpose of this study was to investigate the effects of WBV on electromyography (EMG) activity of upper extremity muscles in static modified push up position. METHODS Forty recreationally active females were randomly assigned in WBV and control groups. Participants in WBV group received 5 sets of 30 seconds vibration at 5 mm (peak to peak) and 30 Hz by using vibratory platform. No vibration stimulus was used in the control group. Surface EMG was recorded from Upper Trapezius (UT), Serratus Anterior (SA), Biceps Brachii (BB) and Triceps Brachii (TB) muscles before, during and after the vibration protocol while the subjects maintained the static modified push up position. EMG signals were expressed as root mean square (EMGrms) and normalized by maximum voluntary exertion (MVE). RESULTS EMGrms activity of the studied muscles increased significantly during the vibration protocol in the WBV group comparing to the control group (P ≤ 0.05). The results indicated that vibration stimulus transmitting via hands increased muscle activity of UT, SA, BB and TB muscles by an average of 206%, 60%, 106% and 120%, respectively, comparing to pre vibration values. CONCLUSIONS These findings suggest that short exposure to the WBV could increase the EMGrms activity of the upper extremity muscles in the static modified push-up position. However, more sessions of WBV application require for a proper judgment.
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Whole-body vibration improves neuromuscular parameters and functional capacity in osteopenic postmenopausal women. Menopause 2016; 23:870-5. [DOI: 10.1097/gme.0000000000000644] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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The effect of vertical whole-body vibration on lower limb muscle activation in elderly adults: Influence of vibration frequency, amplitude and exercise. Maturitas 2016; 88:59-64. [PMID: 27105700 DOI: 10.1016/j.maturitas.2016.03.011] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2015] [Revised: 02/23/2016] [Accepted: 03/10/2016] [Indexed: 12/31/2022]
Abstract
OBJECTIVE This study aimed to investigate how whole-body vibration (WBV) and exercise and their interactions influenced leg muscle activity in elderly adults. STUDY DESIGN An experimental study with repeated measures design that involved a group of ambulatory, community-dwelling elderly adults (n=30; 23 women; mean age=61.4±5.3years). MAIN OUTCOME MEASURES Muscle activity of the vastus lateralis (VL), biceps femoris (BF), tibialis anterior (TA), and gastrocnemius (GS) was measured by surface electromyography (EMG), while participants were performing seven different exercises during 4 WBV conditions (condition 1: frequency=30Hz, amplitude=0.6mm, intensity=2.25 units of Earth's gravity (g); condition 2: 30Hz, 0.9mm, 3.40g; condition 3: 40Hz, 0.6mm, 3.65g; condition 4: 40Hz, 0.9mm, 5.50g) and a no-WBV condition in a single experimental session. RESULTS Significantly greater muscle activity was recorded in VL (3%-148%), BF (16%-202%), and GS (19% -164%) when WBV was added to the exercises, compared with the same exercises without WBV (p≤0.015). The effect of vibration intensity on EMG amplitude was exercise-dependent in VL (p=0.002), and this effect was marginally significant in GS (p=0.052). The EMG activity induced by the four WBV intensities was largely similar, and was the most pronounced during static erect standing and static single-leg standing. CONCLUSIONS The EMG amplitude of majority of leg muscles tested was significantly greater during WBV exposure compared with the no-WBV condition. Low-intensity WBV can induce muscle activity as effectively as higher-intensity protocols, and may be the preferred choice for frail elderly adults.
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Wu XT, Sun LW, Qi HY, Shi H, Fan YB. The bio-response of osteocytes and its regulation on osteoblasts under vibration. Cell Biol Int 2016; 40:397-406. [DOI: 10.1002/cbin.10575] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2015] [Accepted: 12/25/2015] [Indexed: 11/08/2022]
Affiliation(s)
- Xin-Tong Wu
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education; School of Biological Science and Medical Engineering; Beihang University; 37th Xueyuan Road, Hian-dian District Beijing China
| | - Lian-Wen Sun
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education; School of Biological Science and Medical Engineering; Beihang University; 37th Xueyuan Road, Hian-dian District Beijing China
- International Joint Research Center of Aerospace Biotechnology and Medical Engineering; Ministry of Science and Technology of China; Beijing China
| | - Hong-Yu Qi
- School of Energy and Power Engineering; Beihang University; 37th Xueyuan Road, Hian-dian District Beijing China
| | - Hao Shi
- School of Energy and Power Engineering; Beihang University; 37th Xueyuan Road, Hian-dian District Beijing China
| | - Yu-Bo Fan
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education; School of Biological Science and Medical Engineering; Beihang University; 37th Xueyuan Road, Hian-dian District Beijing China
- National Research Center for Rehabilitation Technical Aids; 1st Ronghuazhong Road, Beijing Economic and Technological Development Zone Beijing China
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Abstract
A considerable volume of evidence has accumulated to suggest that whole-body vibration (WBV) may have a therapeutic role to play in the prevention of osteoporotic fracture, particularly for individuals who are unable to tolerate vigorous exercise interventions. There is moderate to strong evidence that WBV will prevent falls (likely due to enhanced neuromuscular function), but also some indication that the effects of WBV do not outstrip those of targeted exercise. Animal data indicates that WBV will also improve bone mass, including preventing loss due to hormone withdrawal, disuse and glucocorticoid exposure. Human trials, however, have produced equivocal outcomes for bone. Positive trends are apparent at the hip and spine, but shortcomings in study designs have limited statistical power. The mechanism of the vibration effect on bone tissue is likely to be mechanical coupling between an oscillating cell nucleus and the cytoskeleton. More robust dose-response human data are required before therapeutic guidelines can be developed.
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Affiliation(s)
- Belinda R Beck
- School of Allied Health Sciences, Griffith University, Gold Coast, QLD, 4222, Australia.
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McCann MR, Patel P, Pest MA, Ratneswaran A, Lalli G, Beaucage KL, Backler GB, Kamphuis MP, Esmail Z, Lee J, Barbalinardo M, Mort JS, Holdsworth DW, Beier F, Dixon SJ, Séguin CA. Repeated exposure to high-frequency low-amplitude vibration induces degeneration of murine intervertebral discs and knee joints. Arthritis Rheumatol 2015; 67:2164-75. [PMID: 25891852 DOI: 10.1002/art.39154] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2014] [Accepted: 04/07/2015] [Indexed: 01/08/2023]
Abstract
OBJECTIVE High-frequency, low-amplitude whole-body vibration (WBV) is being used to treat a range of musculoskeletal disorders; however, there is surprisingly limited knowledge regarding its effect(s) on joint tissues. This study was undertaken to examine the effects of repeated exposure to WBV on bone and joint tissues in an in vivo mouse model. METHODS Ten-week-old male mice were exposed to vertical sinusoidal vibration under conditions that mimic those used clinically in humans (30 minutes per day, 5 days per week, at 45 Hz with peak acceleration at 0.3g). Following WBV, skeletal tissues were examined by micro-computed tomography, histologic analysis, and immunohistochemistry, and gene expression was quantified using real-time polymerase chain reaction. RESULTS Following 4 weeks of WBV, intervertebral discs showed histologic hallmarks of degeneration in the annulus fibrosus, disruption of collagen organization, and increased cell death. Greater Mmp3 expression in the intervertebral disc, accompanied by enhanced collagen and aggrecan degradation, was found in mice exposed to WBV as compared to controls. Examination of the knee joints after 4 weeks of WBV revealed meniscal tears and focal damage to the articular cartilage, changes resembling osteoarthritis. Moreover, mice exposed to WBV also demonstrated greater Mmp13 gene expression and enhanced matrix metalloproteinase-mediated collagen and aggrecan degradation in articular cartilage as compared to controls. No changes in trabecular bone microarchitecture or density were detected in the proximal tibia. CONCLUSION Our experiments reveal significant negative effects of WBV on joint tissues in a mouse model. These findings suggest the need for future studies of the effects of WBV on joint health in humans.
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Affiliation(s)
- Matthew R McCann
- University of Western Ontario Schulich School of Medicine and Dentistry, London, Ontario, Canada
| | - Priya Patel
- University of Western Ontario Schulich School of Medicine and Dentistry, London, Ontario, Canada
| | - Michael A Pest
- University of Western Ontario Schulich School of Medicine and Dentistry, London, Ontario, Canada
| | - Anusha Ratneswaran
- University of Western Ontario Schulich School of Medicine and Dentistry, London, Ontario, Canada
| | - Gurkeet Lalli
- University of Western Ontario Schulich School of Medicine and Dentistry, London, Ontario, Canada
| | - Kim L Beaucage
- University of Western Ontario Schulich School of Medicine and Dentistry, London, Ontario, Canada
| | - Garth B Backler
- University of Western Ontario Schulich School of Medicine and Dentistry, London, Ontario, Canada
| | - Meg P Kamphuis
- University of Western Ontario Schulich School of Medicine and Dentistry, London, Ontario, Canada
| | - Ziana Esmail
- University of Western Ontario Schulich School of Medicine and Dentistry, London, Ontario, Canada
| | - Jimin Lee
- University of Western Ontario Schulich School of Medicine and Dentistry, London, Ontario, Canada
| | - Michael Barbalinardo
- University of Western Ontario Schulich School of Medicine and Dentistry, London, Ontario, Canada
| | - John S Mort
- Shriners Hospital for Children and McGill University, Montreal, Quebec, Canada
| | - David W Holdsworth
- Robarts Research Institute and University of Western Ontario, Schulich School of Medicine and Dentistry, London, Ontario, Canada
| | - Frank Beier
- University of Western Ontario Schulich School of Medicine and Dentistry, London, Ontario, Canada
| | - S Jeffrey Dixon
- University of Western Ontario Schulich School of Medicine and Dentistry, London, Ontario, Canada
| | - Cheryle A Séguin
- University of Western Ontario Schulich School of Medicine and Dentistry, London, Ontario, Canada
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Lienhard K, Vienneau J, Nigg S, Meste O, Colson SS, Nigg BM. Relationship Between Lower Limb Muscle Activity and Platform Acceleration During Whole-Body Vibration Exercise. J Strength Cond Res 2015; 29:2844-53. [DOI: 10.1519/jsc.0000000000000927] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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