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de Souza HCM, Pessoa MF, Clemente RDS, da Silva AV, Cardoso PRG, Fernandes J, Dornelas de Andrade A. Effects of 12 weeks of inspiratory muscle training and whole body vibration on the inflammatory profile, BDNF and muscular system in pre-frail elderly women: A randomized controlled trial. Arch Gerontol Geriatr 2024; 123:105421. [PMID: 38593699 DOI: 10.1016/j.archger.2024.105421] [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] [Received: 12/02/2023] [Revised: 02/12/2024] [Accepted: 03/20/2024] [Indexed: 04/11/2024]
Abstract
AIM to investigate the effects of the whole body vibration (WBV) and inspiratory muscle training (IMT) on the inflammatory profile and in muscle mass and strength in pre-frail older women. METHODS this study was a randomized double-blind trial. Forty two older women aged 60-80 years were randomly allocated to IMT + WBV (G1), IMTsham + WBV (G2) or Sham groups (G3). During 12 weeks G1 received both trainings, whereas G2 received WBV alone and G3 received IMT with a low fixed load and were positioned at the vibratory platform without therapeutic effect. Participants were evaluated before and after the intervention for the following outcomes: Brain-derived neurotrophic factor (BDNF) and inflammatory biomarkers (IB), respiratory (RT) and quadriceps thickness (QT) and diaphragmatic mobility (DM) using muscle ultrasound, body composition (BC) using a bioelectrical impedance scale and inspiratory muscle strength (IMS). RESULTS after the training, G1 (114.93 ± 21.29) improved IMS (p<0.005) compared with G2 (91.29 ± 23.10) and G3 (85.21 ± 27.02). There was also a significant improve on time of the DM (p<0.001) and RT (p=0.006) for G1 (8.59 ± 3.55 and 11.11 ± 12.66) compared with G2 (1.05 ± 3.09 and 1.10 ± 10.60) and G3 (0.40 ± 2.29 and -1.85 ± 7.45). BDNF, IB, QT and BC were similar between groups. CONCLUSIONS IMT associated with WBV is effective to improve in increasing IMS, RT and DM in pre-frail older women. However, these interventions do not modify BDNF, IB, QT or BC in this population.
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Affiliation(s)
- Helga Cecília Muniz de Souza
- Postgraduate Program of Biology Applied to Health, Federal University of Pernambuco, Recife, Pernambuco, Brazil; Hospital das Clínicas de Pernambuco - Empresa Brasileira de Serviços Hospitalares (HCPE-EBSERH), Federal University of Pernambuco, Recife, Brazil; Laboratory of Cardiopulmonary Physiotherapy, Department of Physiotherapy, Federal University of Pernambuco, Recife, Brazil.
| | - Maíra Florentino Pessoa
- Postgraduate Program of Biology Applied to Health, Federal University of Pernambuco, Recife, Pernambuco, Brazil; Laboratory of Cardiopulmonary Physiotherapy, Department of Physiotherapy, Federal University of Pernambuco, Recife, Brazil
| | - Rafaela Dos Santos Clemente
- Laboratory of Cardiopulmonary Physiotherapy, Department of Physiotherapy, Federal University of Pernambuco, Recife, Brazil
| | - Alanna Vasconcelos da Silva
- Laboratory of Cardiopulmonary Physiotherapy, Department of Physiotherapy, Federal University of Pernambuco, Recife, Brazil
| | | | - Juliana Fernandes
- Laboratory of Physiotherapy and Collective Health, Department of Physiotherapy, Federal University of Pernambuco, Recife, Brazil
| | - Arméle Dornelas de Andrade
- Postgraduate Program of Biology Applied to Health, Federal University of Pernambuco, Recife, Pernambuco, Brazil; Laboratory of Cardiopulmonary Physiotherapy, Department of Physiotherapy, Federal University of Pernambuco, Recife, Brazil.
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Liu Z, Zhong Y, Maemichi T, Zhou Q, Okunuki T, Li Y, Kazuki W, Kumai T. Acute Effects of Local High-Frequency Percussive Massage on Deep Fascial and Muscular Stiffness and Joint Range of Motion in Young Adult Men. J Sport Rehabil 2024; 33:252-258. [PMID: 38508160 DOI: 10.1123/jsr.2022-0455] [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] [Received: 12/25/2022] [Revised: 01/29/2024] [Accepted: 02/04/2024] [Indexed: 03/22/2024]
Abstract
BACKGROUND Local high-frequency percussive (HFP) massage has recently found widespread application in physical therapy. Although HFP massage reportedly improves range of motion (ROM), the mechanism underlying its action has not yet been proven. This study aimed to clarify whether a 5-minute percussive massage regimen affects muscular or connective tissues, such as the deep fascia and deep intermuscular fascia and the change in joint ROM. METHOD The study sample was calculated using G*Power analysis program, and this study enrolled 15 healthy men who underwent 5-minute HFP massage to the medial gastrocnemius muscle. Shear-wave elastography was used to measure tissue stiffness in the deep fascia, muscle, and deep intermuscular fascia through shear-wave velocity as well as the ROM of the volunteers' ankle joint dorsiflexion before and after the HFP massage. A value of P < .05 was used to declare statistical significance, and post hoc was used to calculate the effect size using G*Power. RESULTS Shear-wave velocity revealed a significant change in the deep fascia (P = .003; shear-wave velocity: -0.7 m/s) and significant increase in ROM of ankle dorsiflexion (P = .002; increase in ROM: 3.0°) after 5 minutes of HFP massage. However, the muscle and deep intermuscular fascia did not exhibit any significant changes. CONCLUSIONS HFP massage for 5 minutes modified the stiffness of the deep fascia and concurrently improved the ankle joint-dorsiflexion ROM. This method can be used as an intervention to decrease stiffness of the deep fascia and increase the ROM efficiently.
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Affiliation(s)
- Zijian Liu
- Graduate School of Sport Sciences, Waseda University, Saitama, Japan
| | - Yicheng Zhong
- Graduate School of Sport Sciences, Waseda University, Saitama, Japan
| | - Toshihiro Maemichi
- Faculty of Sport Sciences, Waseda University, Saitama, Japan
- Institute of Life Innovation Studies, Toyo University, Tokyo, Japan
| | - Qianhui Zhou
- Graduate School of Sport Sciences, Waseda University, Saitama, Japan
| | - Takumi Okunuki
- Graduate School of Sport Sciences, Waseda University, Saitama, Japan
- Institute of Life Innovation Studies, Toyo University, Tokyo, Japan
- Research Organization of Science and Technology, Ritsumeikan University/Research Fellow of Japan Society for the Promotion of Science, Japan
| | - Yanshu Li
- Graduate School of Human Sciences, Waseda University, Saitama, Japan
| | - Wakamiya Kazuki
- Graduate School of Sport Sciences, Waseda University, Saitama, Japan
| | - Tsukasa Kumai
- Faculty of Sport Sciences, Waseda University, Saitama, Japan
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Roberts TD, Costa PB, Lynn SK, Coburn JW. Effects of Percussive Massage Treatments on Symptoms Associated with Eccentric Exercise-Induced Muscle Damage. J Sports Sci Med 2024; 23:126-135. [PMID: 38455428 PMCID: PMC10915620 DOI: 10.52082/jssm.2024.126] [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] [Received: 11/10/2023] [Accepted: 01/11/2024] [Indexed: 03/09/2024]
Abstract
Percussive massage (PM) is an emerging recovery treatment despite the lack of research on its effects post-eccentric exercise (post-EE). This study investigated the effects of PM treatments (immediately, 24, 48, and 72 h post-EE) on the maximal isometric torque (MIT), range of motion (ROM), and an 11-point numerical rating scale (NRS) of soreness of the nondominant arm's biceps brachii from 24-72 h post-EE. Seventeen untrained, college-aged subjects performed 60 eccentric elbow flexion actions with their nondominant arms. Nine received 1 minute of PM, versus eight who rested quietly (control [CON]). In order, NRS, ROM, and MIT (relative to body mass) were collected pre-eccentric exercise (pre-EE) and after treatment (AT) at 24, 48, and 72 h post-EE. NRS was also collected before treatment (BT). Electromyographic (EMG) and mechanomyographic (MMG) amplitudes were collected during the MIT and normalized to pre-EE. There were no interactions for MIT, EMG, or MMG, but there were interactions for ROM and NRS. For ROM, the PM group had higher values than the CON 24-72 h by ~6-8°, a faster return to pre-EE (PM: 48 h, CON: 72 h), and exceeded their pre-EE at 72 h by ~4°. The groups' NRS values did not differ BT 24-72 h; however, the PM group lowered their NRS from BT to AT within every visit by ~1 point per visit, which resulted in them having lower values than the CON from 24-72 h by ~2-3 points. Additionally, the PM group returned their NRS to pre-EE faster than the CON (PM: BT 72 h, CON: never). In conclusion, PM treatments may improve ROM without affecting isometric strength or muscle activation 24-72 h post-EE. Although the PM treatments did not enhance the recovery from delayed onset muscle soreness until 72 h, they consistently provided immediate, temporary relief when used 24-72 h post-EE.
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Affiliation(s)
- Trevor D Roberts
- California State University, Fullerton; Center for Sport Performance and Exercise Physiology Lab; Fullerton, CA, USA
| | - Pablo B Costa
- California State University, Fullerton; Center for Sport Performance and Exercise Physiology Lab; Fullerton, CA, USA
| | - Scott K Lynn
- California State University, Fullerton; Center for Sport Performance and Exercise Physiology Lab; Fullerton, CA, USA
| | - Jared W Coburn
- California State University, Fullerton; Center for Sport Performance and Exercise Physiology Lab; Fullerton, CA, USA
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Barati K, Kamyab M, Ebrahimi Takamjani I, Parnianpour M, Hosseini N, Bidari S. Evaluating the effect of equipping an unloading knee orthosis with local muscle vibrators on clinical parameters, muscular activation level, and medial contact force in patients with medial knee osteoarthritis: A randomized trial. Prosthet Orthot Int 2024; 48:46-54. [PMID: 37318271 DOI: 10.1097/pxr.0000000000000243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Accepted: 03/30/2023] [Indexed: 06/16/2023]
Abstract
BACKGROUND Unloading knee orthosis is prescribed for people with unicompartmental knee osteoarthritis (OA) to unload the damaged compartment. However, despite its benefits, wearing unloading knee orthoses in the long term may decrease knee muscle activity and have a side effect on knee OA progression rate. OBJECTIVES Therefore, this study aimed to determine whether equipping an unloading knee orthosis with local muscle vibrators improves its effectiveness in improving clinical parameters, medial contact force (MCF), and muscular activation levels. METHODS The authors performed a clinical evaluation on 14 participants (7 participants wearing vibratory unloading knee orthoses and 7 participants wearing conventional unloading knee orthoses) with medial knee OA. RESULTS Wearing both orthoses (vibratory and conventional) for 6 weeks significantly improved ( p < 0.05) the MCF, pain, symptoms, function, and quality of life compared with the baseline assessment. Compared with the baseline assessment, the vastus lateralis muscle activation level significantly increased ( p = 0.043) in the vibratory unloading knee orthoses group. The vibratory unloading knee orthoses significantly improved the second peak MCF, vastus medialis activation level, pain, and function compared with conventional unloading knee orthoses ( p < 0.05). CONCLUSIONS Given the potential role of medial compartment loading in the medial knee OA progression rate, both types of unloading knee orthoses (vibratory and conventional) have a potential role in the conservative management of medial knee OA. However, equipping the unloading knee orthoses with local muscle vibrators can improve its effectiveness for clinical and biomechanical parameters and prevent the side effects of its long-term use.
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Affiliation(s)
- Kourosh Barati
- Department of Orthotics and Prosthetics, School of Rehabilitation Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
- Department of Orthotics and Prosthetics, School of Paramedical Sciences, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mojtaba Kamyab
- Department of Orthotics and Prosthetics, California State University Dominguez Hills, Carson, CA, USA
| | - Ismail Ebrahimi Takamjani
- Rehabilitation Research Centre, Department Physiotherapy, School of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran
| | - Mohamad Parnianpour
- Department of Mechanical Engineering, Sharif University of Technology, Tehran, Iran
| | - Nesa Hosseini
- Department of Mechanical Engineering, Sharif University of Technology, Tehran, Iran
| | - Shahrbanoo Bidari
- Department of Orthotics and Prosthetics, School of Paramedical Sciences, Mashhad University of Medical Sciences, Mashhad, Iran
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Abit Kocaman A, Önal B, Sertel M, Karaca G. The effect of local vibration applied to the forearm extensor muscles on hand function and muscle activation in stroke patients: a randomized controlled study. Acta Neurol Belg 2023; 123:1957-1964. [PMID: 37481756 DOI: 10.1007/s13760-023-02335-6] [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] [Received: 11/13/2022] [Accepted: 07/11/2023] [Indexed: 07/25/2023]
Abstract
OBJECTIVE This study aims to reveal the effect of low-frequency local vibration applied to the forearm extensor muscles on stroke patients' muscle activation and hand functions. METHODS Twenty-four stroke patients were randomized to the vibration group (n = 12) or control group (n = 12). The vibration was applied at a 30 Hz frequency to the forearm extensor muscles with a local vibration device three days a week after the routine, conventional physical therapy sessions for four weeks. Six vibration sets were applied, including one vibration for one minute and a rest for 2 min. Routine, traditional physical therapy was used for the control group in 60-min sessions for 4 weeks. Patients were assessed for muscle activation with surface electromyography (MVC) and The Wolf Motor Function Test (WMFT), Functional Independent Test (FIM) was applied to all patients before and after treatment. RESULTS As a result of our study, MVC measurement, WMFT and FIM scores of the vibration group showed more improvement than the control group. Measurement results of vibration group; While MVC measurement increased from 10.21 to 13.79, WMFT-Functional Ability score increased from 42 to 50, WMFT-Performance Time duration increased from 68.78 to 61.83, and FIM score increased from 74.5 to 83. and the measurement results of the control group; MVC measurement increased from 12.28 to 12.22, WMFT-Functional Ability score increased from 48.5 to 51, WMFT-Performance Time duration increased from 70.39 to 70.61, and FIM score increased from 72.5 to 80.5. CONCLUSION It was concluded that low-frequency local vibration applied to the forearm extensor muscles improve forearm extensor muscle activation and hand motor function. CLINICAL TRIAL REGISTRATION NCT04562220.
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Affiliation(s)
- Ayşe Abit Kocaman
- Department of Physiotherapy and Rehabilitation, Kırıkkale University Faculty of Health Sciences, Kırıkkale, Turkey.
| | - Birol Önal
- Faculty of Physical Therapy and Rehabilitation, Hacettepe University, Ankara, Turkey
| | - Meral Sertel
- Department of Physiotherapy and Rehabilitation, Kırıkkale University Faculty of Health Sciences, Kırıkkale, Turkey
| | - Gülten Karaca
- Department of Physical Therapy and Rehabilitation, Ankara Memorial Hospital, Ankara, Turkey
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Dehghani F, Saeedi H, Khaghani A, Bagherzadeh Cham M. Immediate effects of counterforce brace with and without vibration on pain, muscle strength and range of motion in participants with lateral epicondylitis. A pilot study. Assist Technol 2023; 35:451-459. [PMID: 36036957 DOI: 10.1080/10400435.2022.2116126] [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] [Accepted: 08/15/2022] [Indexed: 10/15/2022] Open
Abstract
Lateral epicondylitis is one of the most common elbow problems. Counterforce braces are commonly used to manage lateral epicondylitis. Recent studies showed that vibration can decrease pain and increase muscle strength by improving motor abilities. The aim of this study was to evaluate the effects of a counterforce brace with and without vibration on pain, muscular strength, wrist and elbow joints range of motion in the participants with lateral epicondylitis. In this repeated measure pre-post clinical trial study, 28 participants with lateral epicondylitis were included. Pain were measured with Visual Analogue Scale (VAS), wrist and elbow flexor/extensor muscles strength with digital dynamometer, wrist and elbow flexion/extension range of motion with goniometer in 3 condition baseline, counterforce brace and counterforce brace with vibration. Pain using counterforce bracing with vibration showed a significant reduction as compared with baseline and counterforce bracing (P < 0.001). Wrist flexor muscles strength (P = 0.005), elbow flexor/extensor muscles strength respectively (P = 0.04, P = 0.02), wrist flexion/extension range of motion (P < 0.001) following the use of counterforce bracing with vibration increased significantly compared with baseline. The results show that the counterforce bracing with and without vibration relieves pain and improves range of motion and muscles strength in lateral epicondylitis participants, but this improvement is more significant with the use of vibration.
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Affiliation(s)
- Forough Dehghani
- Department of Orthotics & Prosthetics, Iran University of Medical sciences, Tehran, Iran
| | - Hassan Saeedi
- Department of Orthotics and Prosthetics, School of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran
- Rehabilitation Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Alireza Khaghani
- Department of Orthotics and Prosthetics, School of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran
| | - Masumeh Bagherzadeh Cham
- Department of Orthotics and Prosthetics, School of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran
- Neuromusculoskeletal Research Center, Department of Physical Medicine and Rehabilitation, School of Medicine, Firoozgar General Hospital, Iran University of Medical Sciences, Tehran, Iran
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Barati K, Kamyab M, Takamjani IE, Bidari S, Parnianpour M. Effect of equipping an unloader knee orthosis with vibrators on pain, function, stiffness, and knee adduction moment in people with knee osteoarthritis: A pilot randomized trial. Gait Posture 2023; 99:83-89. [PMID: 36368240 DOI: 10.1016/j.gaitpost.2022.10.019] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2022] [Revised: 10/10/2022] [Accepted: 10/27/2022] [Indexed: 02/04/2023]
Abstract
BACKGROUND Wearing unloader knee orthoses for the long term may have a side effect on knee adduction moment (KAM). RESEARCH QUESTION This study sought to determine whether equipping an unloader knee orthosis with vibrators improves its effectiveness in pain, stiffness, function, and reducing the KAM. METHODS The authors performed a clinical evaluation with the Western Ontario and McMaster Universities (WOMAC) questionnaire and instrumented gait analyses on 14 participants with medial compartment knee osteoarthritis in two testing sessions: before wearing the orthosis and after 6 weeks of use. RESULTS AND SIGNIFICANCE Wearing both orthoses for 6 weeks significantly improved (p < 0.05) pain, stiffness, and function compared to the baseline assessment. There was a significantly greater reduction in the first peak KAM (p = 0.016) and KAM impulse (p = 0.008) in the vibratory unloader knee orthosis than in the conventional knee orthosis in the second session. Equipping the unloader knee orthosis with vibrators can improve its effectiveness in reducing the KAM and can prevent the side effects of its use. Furthermore, equipping the unloader knee orthosis with the vibrators did not interfere with its effectiveness on pain, stiffness, and function.
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Affiliation(s)
- Kourosh Barati
- Department of Orthotics & Prosthetics, Faculty of Rehabilitation Sciences, Shiraz University of Medical Sciences, Shiraz, Islamic Republic of Iran; Rehabilitation Research Centre, Department of Orthotics & Prosthetics, Faculty of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Islamic Republic of Iran.
| | - Mojtaba Kamyab
- Department of Orthotics and Prosthetics, California State University Dominguez Hills, USA.
| | - Ismail Ebrahimi Takamjani
- Rehabilitation Research Centre, Department Physiotherapy, Faculty of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Islamic Republic of Iran.
| | - Shahrbanoo Bidari
- Faculty of Paramedical Sciences, Mashhad University of Medical Sciences, Mashhad, Islamic Republic of Iran.
| | - Mohamad Parnianpour
- Department of Mechanics, Sharif University of Technology, Tehran, Islamic Republic of Iran.
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Reiner MM, Tilp M, Guilhem G, Morales-Artacho A, Konrad A. Comparison of A Single Vibration Foam Rolling and Static Stretching Exercise on the Muscle Function and Mechanical Properties of the Hamstring Muscles. J Sports Sci Med 2022; 21:287-297. [PMID: 35719228 PMCID: PMC9157528 DOI: 10.52082/jssm.2022.287] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Accepted: 05/18/2022] [Indexed: 01/19/2023]
Abstract
Knee extension and hip flexion range of motion (ROM) and functional performance of the hamstrings are of great importance in many sports. The aim of this study was to investigate if static stretching (SS) or vibration foam rolling (VFR) induce greater changes in ROM, functional performance, and stiffness of the hamstring muscles. Twenty-five male volunteers were tested on two appointments and were randomly assigned either to a 2 min bout of SS or VFR. ROM, counter movement jump (CMJ) height, maximum voluntary isometric contraction (MVIC) peak torque, passive resistive torque (PRT), and shear modulus of semitendinosus (ST), semimembranosus (SM), and biceps femoris (BFlh), were assessed before and after the intervention. In both groups ROM increased (SS = 7.7%, P < 0.01; VFR = 8.8%, P < 0.01). The MVIC values decreased after SS (-5.1%, P < 0.01) only. Shear modulus of the ST changed for -6.7% in both groups (VFR: P < 0.01; SS: P < 0.01). Shear modulus decreased in SM after VFR (-6.5%; P = 0.03) and no changes were observed in the BFlh in any group (VFR = -1%; SS = -2.9%). PRT and CMJ values did not change following any interventions. Our findings suggest that VFR might be a favorable warm-up routine if the goal is to acutely increase ROM without compromising functional performance.
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Affiliation(s)
- Marina Maren Reiner
- Institute of Human Movement Science, Sport and Health, University of Graz, Graz, Austria
| | - Markus Tilp
- Institute of Human Movement Science, Sport and Health, University of Graz, Graz, Austria
| | - Gaël Guilhem
- Laboratory Sport, Expertise and Performance, French Institute of Sport (INSEP), Paris, France
| | - Antonio Morales-Artacho
- Laboratory Sport, Expertise and Performance, French Institute of Sport (INSEP), Paris, France
| | - Andreas Konrad
- Institute of Human Movement Science, Sport and Health, University of Graz, Graz, Austria
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Wang F, Zhang Z, Li C, Zhu D, Hu Y, Fu H, Zhai H, Wang Y. Acute effects of vibration foam rolling and local vibration during warm-up on athletic performance in tennis players. PLoS One 2022; 17:e0268515. [PMID: 35584106 PMCID: PMC9116653 DOI: 10.1371/journal.pone.0268515] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Accepted: 05/02/2022] [Indexed: 11/29/2022] Open
Abstract
Athletes are currently fond of vibration foam rollers (VFRs) and commercial portable vibration percussion devices (PVPDs). It is still unknown whether using these devices during warm-up has an immediate impact on athletic performance. A randomized block design was used in this study. The acute effects of VFR and PVPD on tennis players’ athletic performance during warm-up were compared. For the countermovement jump (CMJ), reactive strength index (RSI), and hexagon test (HT), the difference in performance between all interventions was significant (p = 0.007–0.034, η2p = 0.266–0.364). Only those who received VFR had significantly different CMJ and HT results when compared to the control group (CMJ height = 53.18 ±4.49 cm, p = 0.03, d = 1.26; HT time = 10.73 ±0.4 s, p = 0.03, d = 1.12). Participants’ RSI values were significantly different after VFR (RSI = 2.01 ±0.11 cm·mm–1, p = 0.012, d = 1.76) and PVPD (RSI = 1.99 ±0.11 cm·mm–1, p = 0.025, d = 1.52) compared to the control group. Therefore, when using VFR and PVPD as part of warm-up protocols for tennis players of varying skill levels, VFR could have an immediate positive effect on power, reactive strength, and change of direction performance, while PVPD could immediately improve reactive strength performance.
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Affiliation(s)
- Feng Wang
- School of Physical Education, Huazhong University of Science and Technology, Hubei, China
| | - Zhihua Zhang
- The College of Humanities and Law, Beijing University of Chemical Technology, Beijing, China
- * E-mail: (ZZ); (CL)
| | - Chengliang Li
- Shenyang Sport University, Liaoning, China
- * E-mail: (ZZ); (CL)
| | - Delong Zhu
- Shanghai Sport University, Shanghai, China
| | - Yueying Hu
- School of Physical Education, Huazhong University of Science and Technology, Hubei, China
| | - Honghao Fu
- School of Physical Education, Huazhong University of Science and Technology, Hubei, China
| | - Huan Zhai
- School of Physical Education, Huazhong University of Science and Technology, Hubei, China
| | - Yongjun Wang
- School of Physical Education, Huazhong University of Science and Technology, Hubei, China
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10
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Ong JH, Simic M, Eisenhuth J, Burns J, Baldwin JN, McKay MJ. Normative Reference Values for Knee Extensor Muscle Rate of Torque Development and Torque Steadiness in Adolescents and Adults. J Clin Rheumatol 2022; 28:155-161. [PMID: 35293889 DOI: 10.1097/rhu.0000000000001819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE The aim of this study was to establish reference values for rate of torque development (RTD) and muscle torque steadiness (MTS) of knee extensors across the lifespan, and evaluate if these measures are independently associated with Osteoarthritis Research Society International (OARSI)-recommended performance-based measures (6-minute walk test, 30-second chair stand test, stair climb test) and other clinical variables. METHODS In this cross-sectional observational study, knee extensor strength of 764 participants (12-89 years) from the 1000 Norms Project was assessed via fixed dynamometry. Age- and sex-stratified normative RTD (Nms-1 kg-1) and MTS (Nm kg-1) values were presented as means and 95% confidence intervals. Correlations and multiple regression analyses were calculated to identify factors (age, sex, height, weight, OARSI-recommended performance-based measures, Knee Injury and Osteoarthritis Outcome Score, vertical jump, long jump, grip strength, basic gait-related knee biomechanics) independently associated with RTD or MTS. RESULTS Age- and sex-stratified normative RTD and MTS reference values were generated. Male subjects exhibited higher RTD but poorer MTS (less steady) than female subjects across all age groups. Better performance in OARSI-recommended performance-based measures, vertical jump, long jump, and grip strength were associated with greater RTD but poorer MTS. Thirty-second chair stand test, stair climb test, vertical jump, long jump, and grip strength were independent determinants of RTD and MTS. CONCLUSIONS The RTD and MTS demonstrated associations with clinical variables relevant to knee osteoarthritis. The normative reference values generated may help identify the presence and extent of impairments in RTD and MTS associated with knee osteoarthritis and assist in developing responsive outcome measures for therapeutic trials.
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Affiliation(s)
- Jia Hui Ong
- From the School of Health Sciences, Faculty of Medicine and Health, The University of Sydney
| | - Milena Simic
- From the School of Health Sciences, Faculty of Medicine and Health, The University of Sydney
| | - John Eisenhuth
- From the School of Health Sciences, Faculty of Medicine and Health, The University of Sydney
| | | | - Jennifer N Baldwin
- Priority Research Centre for Physical Activity and Nutrition, College of Health, Medicine and Wellbeing, The University of Newcastle, Newcastle, Australia
| | - Marnee J McKay
- From the School of Health Sciences, Faculty of Medicine and Health, The University of Sydney
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11
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Masud AA, Shen CL, Luk HY, Chyu MC. Impact of Local Vibration Training on Neuromuscular Activity, Muscle Cell, and Muscle Strength: A Review. Crit Rev Biomed Eng 2022; 50:1-17. [PMID: 35997107 DOI: 10.1615/critrevbiomedeng.2022041625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
This paper presents a review of studies on the effects of local vibration training (LVT) on muscle strength along with the associated changes in neuromuscular and cell dynamic responses. Application of local/direct vibration can significantly change the structural properties of muscle cell and can improve muscle strength. The improvement is largely dependent on vibration parameters such as amplitude and frequency. The results of 20 clinical studies reveal that electromyography (EMG) and maximal voluntary contraction (MVC) vary depending on vibration frequency, and studies using frequencies of 28-30 Hz reported greater increases in muscle activity in terms of EMG (rms) value and MVC data than the studies using higher frequencies. A greater muscle activity can be related to the recruitment of large motor units due to the application of local vibration. A greater increase in EMG (rms) values for biceps and triceps during extension than flexion under LVT suggests that types of muscles and their functions play an important role. Although a number of clinical trials and animal studies have demonstrated positive effects of vibration on muscle, an optimum training protocol has not been established. An attempt is made in this study to investigate the optimal LVT conditions on different muscles through review and analysis of published results in the literature pertaining to the changes in the neuromuscular activity. Directions for future research are discussed with regard to identifying optimal conditions for LVT and better understanding of the mechanisms associated with effects of vibration on muscles.
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Affiliation(s)
- Abdullah Al Masud
- Department of Mechanical Engineering, Texas Tech University, Lubbock, TX, USA
| | - Chwan-Li Shen
- Department of Pathology, School of Medicine, Texas Tech University, Lubbock, TX, USA
| | - Hui-Ying Luk
- Department of Kinesiology & Sport Management, Texas Tech University, Lubbock, TX, USA
| | - Ming-Chien Chyu
- Department of Pathology, School of Medicine, Texas Tech University, Lubbock, TX, USA
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12
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Lee JW, Shin MJ, Jang MH, Jeong WB, Ahn SJ. Two-stage binary classifier for neuromuscular disorders using surface electromyography feature extraction and selection. Med Eng Phys 2021; 98:65-72. [PMID: 34848040 DOI: 10.1016/j.medengphy.2021.10.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 10/17/2021] [Accepted: 10/24/2021] [Indexed: 11/25/2022]
Abstract
If surface electromyography (sEMG) can be used to determine neuromuscular disorders, it can diagnose conditions more easily than needle electromyography. In this study, sEMG during maximum voluntary isometric contraction and repetitive exercise was measured, and normal, myopathy, and neuropathy were classified with high accuracy using these signals. First, a two-stage binary classifier model was constructed to classify the patient group and the normal group and categorize the cases assigned to the patient group into myopathy and neuropathy groups. To this end, features related to muscle activity and muscle fatigue were extracted using activity analysis and frequency analysis of the sEMG signal. Since the features for high performance are different for each classifier, the features with statistical differences in the data of each class were selected for each classifier. The selected features and a two-stage binary classifier were distinguished with an accuracy of 86.9%. This shows an accuracy higher than 82.3%, which was found for the two-stage binary classifier without feature selection and 73.9% of the multi-classifier. Through this, the possibility of using sEMG to diagnose neuromuscular disorders was confirmed.
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Affiliation(s)
- Jun-Woo Lee
- School of Mechanical Engineering, Punsan National University, Busan, Republic of Korea
| | - Myung-Jun Shin
- Department of Rehabilitation Medicine, Pusan National University Hospital, Busan, Republic of Korea
| | - Myung-Hun Jang
- Department of Rehabilitation Medicine, Pusan National University Hospital, Busan, Republic of Korea
| | - Weui-Bong Jeong
- School of Mechanical Engineering, Punsan National University, Busan, Republic of Korea
| | - Se-Jin Ahn
- Division of Energy and Electric Engineering, Uiduk University, Gyeungju, Republic of Korea.
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13
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Ravanbod R, Eslami N, Ashtiani MN. Immediate effects of footwear with vibration applied to the swing phase of the gait cycle on dynamic balance in patients with diabetic peripheral neuropathy. J Biomech 2021; 128:110710. [PMID: 34474373 DOI: 10.1016/j.jbiomech.2021.110710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 08/16/2021] [Accepted: 08/23/2021] [Indexed: 11/25/2022]
Abstract
Sensory and sub-sensory foot vibration have beneficial effects on the static and dynamic balance of patients with diabetic peripheral neuropathy (DPN). Previous foot vibration during walking was applied at sub-sensory threshold in both stance and swing phases of the gait cycle in DPN. This study aimed to investigate the effects of footwear with vibration above the sensory threshold applied to the swing phase of the gait cycle on the dynamic balance of DPN. Fifteen patients with DPN and 10 matched healthy control participants were enrolled in this study. Dynamic balance assessment was investigated by the sit to stand and turn tests while electromyography activity (root mean square, RMS) of the vastus lateralis (VL), tibialis anterior (TA), and peroneus longus (PL) muscles were recorded at baseline, after 10 min of wearing the vibratory sandal without vibration, and after 10 min of wearing the sandal with vibration. Repeated measure analysis of variance was conducted for data analysis. Wearing the vibratory sandal slightly increased the speed of weight transfer in both groups and COP sway in DPN (P > 0.05), and close to significant decrease of turn sway (P = 0.07) in both groups. There were significant differences of the PL RMS in turn test (P = 0.03) in DPN and peak RMS of the PL after 10 min of wearing the sandal with vibration in both groups (P < 0.05). The results of the present study demonstrated that PL activity was significantly influenced by the vibratory sandal as its tendon passing across the sole and in direct contact with the source of the vibration.
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Affiliation(s)
- Roya Ravanbod
- Department of Physiotherapy, Faculty of Medical Sciences, Tarbiat Modares University, Tehran 14115-111, Iran.
| | - Niloofar Eslami
- Department of Physiotherapy, Faculty of Medical Sciences, Tarbiat Modares University, Tehran 14115-111, Iran
| | - Mohammed N Ashtiani
- Department of Physiotherapy, Faculty of Medical Sciences, Tarbiat Modares University, Tehran 14115-111, Iran
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14
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Guzman M, Acevedo K, Castro C, Moran C, Espinoza V, Quezada C. Tissue Mobilization During Double Source of Vibration Semioccluded Vocal Tract Exercises: A Neck and Face Surface Acceleration Study. JOURNAL OF SPEECH, LANGUAGE, AND HEARING RESEARCH : JSLHR 2021; 64:4124-4137. [PMID: 34662217 DOI: 10.1044/2021_jslhr-21-00033] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Purpose This study primarily aimed at observing the possible tissue mobilization on facial, neck, and chest tissues caused by different double source of vibration semioccluded vocal tract exercises (DSV-SOVTEs). Another goal was to inspect the degree of self-perceived sensation of a massage-like sensation. Method Fifty-five participants engaged in a set of several DSV-SOVTEs: (a) phonation with a silicone tube submerged 2 and 8 cm below water surface, (b) Acapella Choice device, (c) lip trills, and (d) tongue trills. A self-perceived massage-like sensation was also assessed. All exercises were performed at three loudness levels. Tissue mobilization signal was captured by four accelerometers placed in four different body regions: (a) over the cheek, (b) over the neck, (c) over the thyroid cartilage, and (d) over the suprasternal notch. Results There is a differential effect of all DSV-SOVTEs on tissue mobilization. All four observed dependent variables from tissue oscillation modulation (frequency, amplitude, jitter, and shimmer) showed significant three-way interactions. In general, amplitude and frequency of tissue oscillation modulation increases with loudness. A self-perceived massage-like sensation showed highly significant differences between DSV-SOVTEs. Conclusions All DSV-SOVTEs do mobilize tissues. Type of exercise, loudness level, and body region produce an effect on all tissue oscillation variables. Acapella device produces the largest amplitude of vibration, lowest frequency, and more regular oscillation of tissue. Water resistance therapy showed the most irregular tissue oscillation. Control of these variables is likely to be relevant to obtain the best outcomes in patients.
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Affiliation(s)
- Marco Guzman
- Department of Communication Sciences and Disorders, Universidad de los Andes, Chile, Santiago
| | - Karol Acevedo
- Department of Communication Sciences and Disorders, Universidad San Sebastián, Santiago, Chile
| | - Christian Castro
- Department of Communication Sciences and Disorders, Universidad de Valparaíso, Chile
| | | | | | - Camilo Quezada
- Departamento de Fonoaudiología, Facultad de Medicina, Universidad de Chile, Santiago
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15
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Nakamura M, Sato S, Kiyono R, Yoshida R, Murakami Y, Yasaka K, Yahata K, Konrad A. Acute Effect of Vibration Roller With and Without Rolling on Various Parts of the Plantar Flexor Muscle. Front Physiol 2021; 12:716668. [PMID: 34630141 PMCID: PMC8493118 DOI: 10.3389/fphys.2021.716668] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2021] [Accepted: 08/24/2021] [Indexed: 01/29/2023] Open
Abstract
A single use of a vibration foam roller likely increases the range of motion (ROM) without decreasing muscle strength and athletic performance. However, to date, no study compared the effects of a vibration roller with and without rolling on various parts of the plantar flexor muscle. Therefore, this study aimed to compare the effects of the vibration foam roller with rolling or without rolling at the muscle-tendon junction (MTJ) or the muscle belly on dorsiflexion (DF) ROM, passive torque at DF ROM, shear elastic modulus, muscle strength, and jump performance. Fifteen healthy young males performed the following three conditions: (1) vibration rolling over the whole muscle-tendon unit, (2) static vibration on muscle belly, and (3) static vibration on MTJ for three-set 60-s vibration in random order. In this study, DF ROM, passive torque, shear elastic modulus, muscle strength, and single-leg drop jump were measured before and immediately after the interventions. The DF ROM and passive torque at DF ROM were increased after all three conditions, whereas the shear elastic modulus was decreased after vibration rolling and static vibration on the muscle belly, but not following static vibration of the MTJ. In addition, there were no significant changes in muscle strength and jump performance in any group. Our results showed that vibration with rolling or static vibration on muscle belly could be effective to improve ROM and muscle stiffness without adverse effects of muscle strength and athletic performance.
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Affiliation(s)
- Masatoshi Nakamura
- Institute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Niigata, Japan.,Department of Physical Therapy, Niigata University of Health and Welfare, Niigata, Japan
| | - Shigeru Sato
- Institute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Niigata, Japan
| | - Ryosuke Kiyono
- Institute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Niigata, Japan
| | - Riku Yoshida
- Institute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Niigata, Japan
| | - Yuta Murakami
- Department of Physical Therapy, Niigata University of Health and Welfare, Niigata, Japan
| | - Koki Yasaka
- Department of Physical Therapy, Niigata University of Health and Welfare, Niigata, Japan
| | - Kaoru Yahata
- Institute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Niigata, Japan
| | - Andreas Konrad
- Institute of Human Movement Science, Sport and Health, University of Graz, Graz, Austria
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16
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Park SJ, Lee SI, Jeong HJ, Kim BG. Effect of vibration foam rolling on the range of motion in healthy adults: a systematic review and meta-analysis. J Exerc Rehabil 2021; 17:226-233. [PMID: 34527633 PMCID: PMC8413912 DOI: 10.12965/jer.2142322.161] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 06/22/2021] [Indexed: 02/02/2023] Open
Abstract
Professionals use foam rollers to improve range of motion (ROM). Recently, a vibrating foam roller (VFR) that combines the vibration function with a foam roller (FR) has been used. The purpose of this systematic review and meta-analysis was to determine the effects of a VFR on the improvement of ROM in healthy individuals. A systematic literature search was carried out in five international databases: PubMed, Embase, PEDro, Cochrane Library, and Google Scholar. Eight clinical studies, composed of six randomized controlled trials and two randomized crossover trials that involved 230 healthy participants were selected for analysis. Methodological quality was identified using the PEDro scale. The mean scores, 4.75±0.71, of the eight included studies, were classified as fair. The results demonstrated that the VFR achieved better gains than the FR in improving ROM (standardized mean difference [SMD], 0.53; 95% confidence intervals [CIs], 0.29–0.77; I2=55%). The VFR was more effective in improving the ROM than the FR in the hip and knee joints (hip: SMD, 0.56; 95% CI, 0.28–0.85; I2=0%; knee: SMD, 0.86; 95% CI, 0.42–1.30; I2=79%). The VFR may be an additional option to improve the ROM in healthy adults and athletes.
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Affiliation(s)
- Se-Ju Park
- Department of Physical Therapy, Nambu University, Gwangju, Korea
| | - So-In Lee
- Department of Physical Therapy, Nambu University, Gwangju, Korea
| | - Ho-Jin Jeong
- Department of Physical Therapy, Nambu University, Gwangju, Korea
| | - Byeong-Geun Kim
- Department of Physical Therapy, Nambu University, Gwangju, Korea
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17
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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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18
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Blackburn T, Padua DA, Pietrosimone B, Schwartz TA, Spang JT, Goodwin JS, Dewig DR, Johnston CD. Vibration improves gait biomechanics linked to posttraumatic knee osteoarthritis following anterior cruciate ligament injury. J Orthop Res 2021; 39:1113-1122. [PMID: 32757272 DOI: 10.1002/jor.24821] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 06/24/2020] [Accepted: 07/13/2020] [Indexed: 02/04/2023]
Abstract
Anterior cruciate ligament reconstruction (ACLR) incurs a high risk of posttraumatic knee osteoarthritis (PTOA). Aberrant gait biomechanics contribute to PTOA and are attributable in part to quadriceps dysfunction. Vibration improves quadriceps function following ACLR, but its effects on gait biomechanics are unknown. The purpose of this study was to evaluate the effects of whole-body vibration (WBV) and local muscle vibration (LMV) on gait biomechanics in individuals with ACLR. Seventy-five volunteers (time since ACLR 27 ± 16 months) were randomized to WBV, LMV, or Control interventions. Walking biomechanics were assessed prior to and following a single exposure to the interventions. Outcomes included pre-post change scores in the ACLR limb for the peak vertical ground reaction force (vGRF) and its loading rate, peak internal knee extension (KEM) and abduction moments, and peak knee flexion and varus angles. LMV produced a significant decrease in the vGRF loading rate (-3.6 BW/s) that was greater than the changes in the WBV (-0.3 BW/s) and Control (0.5 BW/s) groups. Additionally, WBV produced an increase in the peak KEM (0.27% BW × Ht) that was greater than the change in the Control group (-0.17% BW × Ht) but not the LMV group (0.01% BW × Ht). Lower KEM and greater loading rates have been linked to declines in joint health following ACLR. WBV acutely increased the peak KEM and LMV decreased loading rates. These data suggest that vibration has the potential to mitigate aberrant gait biomechanics, and may represent an effective approach for reducing PTOA risk following ACLR.
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Affiliation(s)
- Troy Blackburn
- Department of Exercise and Sport Science, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina.,Department of Allied Health Sciences, Program in Human Movement Science, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Darin A Padua
- Department of Exercise and Sport Science, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina.,Department of Allied Health Sciences, Program in Human Movement Science, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Brian Pietrosimone
- Department of Exercise and Sport Science, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina.,Department of Allied Health Sciences, Program in Human Movement Science, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Todd A Schwartz
- Department of Biostatistics, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Jeffrey T Spang
- Department of Orthopaedics, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | | | - Derek R Dewig
- Department of Allied Health Sciences, Program in Human Movement Science, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Chris D Johnston
- Department of Athletic Training, High Point University, North Carolina
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19
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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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20
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Gonçalves AF, Matias FL, Parizotto NA, Dos Santos HH, Ferreira JJDA, de Andrade PR. The immediate effect of whole-body vibration on rectus abdominis muscle activity and cutaneous temperature: A randomized controlled trial. J Bodyw Mov Ther 2020; 25:46-52. [PMID: 33714510 DOI: 10.1016/j.jbmt.2020.10.019] [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: 04/27/2020] [Revised: 09/25/2020] [Accepted: 10/19/2020] [Indexed: 11/30/2022]
Abstract
OBJECTIVES To compare acute effects of isometric abdominal exercises performed with or without vibration on the electromyographic activity and cutaneous temperature in the abdominal region of physically active individuals. METHODS A randomized controlled crossover clinical trial was undertaken in thirty volunteers who completed one unique session of two different protocols of interventions apart from a week from each other, in a two-week study protocol. The subjects were randomly divided in to two groups of 15 volunteers; both were assigned to perform board exercise (30 s on the front, right and left lateral boards, with a rest interval of 2 min). The first group performed it on a vibrating platform at a frequency of 30 Hz for the first week, while the remaining participants executed the same exercise without stimulates vibration. In the second week the protocol was inverted. The outcome were surface electromyography (EMG) data for the rectus abdominis muscle (RAM) and cutaneous temperature (CT) of the abdominal region. Normality was accepted, and Student's t-tests were used to compare the measurements for dependents variables (P < 0.05). RESULTS There were no differences in RAM activation and CT between protocols with or without vibration (P > 0.05). CT increased (P = 0.001) after both the exercises with and without vibration. CONCLUSION The results suggest that there were no effects in cutaneous temperature or muscle activation through the use of vibration associated with isometric abdominal exercises.
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21
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Boarati EDL, Hotta GH, McQuade KJ, de Oliveira AS. Acute effect of flexible bar exercise on scapulothoracic muscles activation, on isometric shoulder abduction force and proprioception of the shoulder of individuals with and without subacromial pain syndrome. Clin Biomech (Bristol, Avon) 2020; 72:77-83. [PMID: 31838214 DOI: 10.1016/j.clinbiomech.2019.12.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Revised: 11/11/2019] [Accepted: 12/03/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND There is currently no evidence about the effects of neuromuscular facilitation after the use of a flexible bar on scapulothoracic muscle activity in individuals with subacromial pain syndrome. The study aimed to assess the acute effect of flexible bar exercise and subjective fatigue on scapulothoracic muscle activity, shoulder proprioception, and shoulder abduction force of subjects with and without symptoms of subacromial pain syndrome. METHOD Fifty subjects with subacromial pain syndrome and 50 asymptomatic subjects were recruited. A short-term flexible bar exercise was performed to assess the vibratory stimulus effects on scapulothoracic muscle activity, shoulder proprioception, and shoulder abduction force, and the same exercise was performed on a long-term basis to assess the effects of subjective fatigue. The activities of the serratus anterior and three portions of the trapezius muscle were investigated using surface electromyography during arm elevation. The active joint position sense error was assessed to determine shoulder proprioception using a laser pointer. A hand-held dynamometer was used to assess isometric shoulder abduction force. FINDINGS No significant intra-group differences were found in scapulothoracic muscle activity, as well as in active joint position sense error and isometric shoulder abduction force in either group (p >0.05). INTERPRETATION The acute effects of flexible bar exercise and subjective fatigue were unable to influence scapulothoracic muscle activation, shoulder joint position sense, and isometric shoulder abduction force in subacromial pain syndrome.
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Affiliation(s)
- Eduardo de Lima Boarati
- Department of Health Sciences, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, Brazil.
| | - Gisele Harumi Hotta
- Department of Health Sciences, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, Brazil.
| | - Kevin James McQuade
- Department of Rehabilitation Medicine, School of Medicine, Seattle University of Washington, United States.
| | - Anamaria Siriani de Oliveira
- Department of Health Sciences, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, Brazil.
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22
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de Benito AM, Valldecabres R, Ceca D, Richards J, Barrachina Igual J, Pablos A. Effect of vibration vs non-vibration foam rolling techniques on flexibility, dynamic balance and perceived joint stability after fatigue. PeerJ 2019; 7:e8000. [PMID: 31788353 PMCID: PMC6883953 DOI: 10.7717/peerj.8000] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Accepted: 10/07/2019] [Indexed: 12/12/2022] Open
Abstract
Background Foam roller and vibration techniques are currently used to assist in recovery after fatigue. The main purpose of this study was to determine the effects of the use of a foam roller with and without vibration on dynamic balance, ankle dorsiflexion, hamstring and lumbar spine flexibility and perceived knee and ankle stability after an induced fatigue protocol. Methods A total of 24 healthy recreationally active participants (17 males and seven females) were recruited to a randomized cross over trial consisting of; no treatment (NT), foam roller treatment (FR) and vibration foam roller treatment (VFR). The assessments included; the Sit & Reach test, Y balance test and post-treatment perceived knee and ankle stability. Measurements were taken after a standardized warm up (baseline) and repeated following an exercise-induced muscle fatigue protocol consisting of repeated lunges until volitional fatigue. The three treatment conditions were assessed on three separate days in a randomized order. A 3 × 3 repeated measures ANOVA was used to investigate differences between the three treatments over the three time points and a one factor repeated measures ANOVA was used to determine any differences between treatments using the Global Rate of Change scale when considering perceived stability. Results FR and VFR conditions both showed a greater ankle dorsiflexion range of motion (ROM) (p < 0.001), greater posteromedial and posterolateral reach distances (p < 0.001) and a better knee and ankle perceived stability (p < 0.001) when compared to the NT condition. A trend toward significance was observed in the hamstring and lumbar spine flexibility (p = 0.074) in both treatment conditions when compared to the NT condition. However, no differences were seen between the FR and VFR conditions. Conclusions Both FR conditions seem to assist in exercise-induced muscle fatigue recovery with improvements in ROM, balance and perceived stability.
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Affiliation(s)
- Ana María de Benito
- Physical Activity and Sports Sciences Faculty, Universidad Católica de Valencia San Vicente Mártir, Torrent, Valencia, Spain
| | - Raúl Valldecabres
- Doctorate School, Universidad Católica de Valencia San Vicente Mártir, Valencia, Spain
| | - Diego Ceca
- Department of Education, Universidad Internacional de Valencia, Valencia, Spain
| | - Jim Richards
- Allied Health Research Unit, University of Central Lancashire, Preston, UK
| | | | - Ana Pablos
- Physical Activity and Sports Sciences Faculty, Universidad Católica de Valencia San Vicente Mártir, Torrent, Valencia, Spain
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The effects of patellar tendon vibration on quadriceps strength in anterior cruciate ligament reconstructed knees. Phys Ther Sport 2019; 40:71-77. [PMID: 31499398 DOI: 10.1016/j.ptsp.2019.08.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Revised: 08/29/2019] [Accepted: 08/30/2019] [Indexed: 12/20/2022]
Abstract
OBJECTIVES To examine the immediate effects of prolonged patellar tendon vibration on quadriceps strength in anterior cruciate ligament reconstructed (ACLR) knees with bone-patellar tendon-bone (BTB) grafts and non-BTB grafts, and healthy control knees. DESIGN Pretest-posttest design. SETTING Laboratory. PARTICIPANTS Young adult participants were stratified into one of three groups: non-BTB graft (n = 25), BTB graft (n = 26), and controls without ACLR (n = 21). MAIN OUTCOME MEASURES Maximum voluntary isometric contraction (MVIC) knee extension torque was measured at baseline and following a 20-min vibration intervention applied locally to the patellar tendon. RESULTS Our findings suggest there was no difference in the effects of vibration on knee extension torque between the three groups. Knee extension torque significantly increased (effect size = 0.52 [0.18 to 0.81]) from baseline to post-vibration across all three groups (0.30 ± 0.26 Nm/kg, 21.8 ± 20.0%). Both ACLR groups demonstrated significantly lower knee extension torque compared the control group. CONCLUSIONS The vibration intervention had a net excitatory effect on quadriceps strength in all three groups and there were no differences in the magnitude of change between the three groups. Vibration could become a useful tool for enhancing quadriceps strength in ACLR and healthy knees.
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Diekfuss JA, Grooms DR, Nissen KS, Schneider DK, Foss KDB, Thomas S, Bonnette S, Dudley JA, Yuan W, Reddington DL, Ellis JD, Leach J, Gordon M, Lindsey C, Rushford K, Shafer C, Myer GD. Alterations in knee sensorimotor brain functional connectivity contributes to ACL injury in male high-school football players: a prospective neuroimaging analysis. Braz J Phys Ther 2019; 24:415-423. [PMID: 31377125 DOI: 10.1016/j.bjpt.2019.07.004] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Revised: 07/02/2019] [Accepted: 07/03/2019] [Indexed: 01/13/2023] Open
Abstract
OBJECTIVE This study's purpose was to utilize a prospective dataset to examine differences in functional brain connectivity in male high school athletes who suffered an anterior cruciate ligament (ACL) injury relative to their non-injured peers. METHODS Sixty-two male high school football players were evaluated using functional magnetic resonance imaging prior to their competitive season to evaluate resting-state functional brain connectivity. Three athletes later experienced an ACL injury and were matched to 12 teammates who did not go on to sustain an ACL injury (controls) based on school, age, height, weight, and year in school. Twenty-five knee-motor regions of interest (ROIs) were created to identify differences in connectivity between the two groups. Between-subject F and t tests were used to identify significant ROI differences using a false discovery rate correction for multiple comparisons. RESULTS There was significantly less connectivity between the left secondary somatosensory cortex and the left supplementary motor area (p = 0.025), right pre-motor cortex (p = 0.026), right supplementary motor area (p = 0.026), left primary somatosensory cortex (superior division; p = 0.026), left primary somatosensory cortex (inferior division; p = 0.026), and left primary motor cortex (p = 0.048) for the ACL-injured compared to the control subjects. No other ROI-to-ROI comparisons were significantly different between the groups (all p > 0.05). CONCLUSION Our preliminary data indicate a potential sensorimotor disruption for male football players who go on to experience an ACL injury. Future studies with larger sample sizes and complementary measures of neuromuscular control are needed to support these findings.
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Affiliation(s)
- Jed A Diekfuss
- The SPORT Center, Division of Sports Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA.
| | - Dustin R Grooms
- Ohio Musculoskeletal & Neurological Institute and Division of Athletic Training, School of Applied Health Sciences and Wellness, College of Health Sciences and Professions, Ohio University, Athens, OH, USA
| | - Katharine S Nissen
- The SPORT Center, Division of Sports Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Daniel K Schneider
- The SPORT Center, Division of Sports Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA; Riverside Methodist Hospital, Columbus, OH, USA
| | - Kim D Barber Foss
- The SPORT Center, Division of Sports Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Staci Thomas
- The SPORT Center, Division of Sports Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Scott Bonnette
- The SPORT Center, Division of Sports Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Jonathan A Dudley
- Pediatric Neuroimaging Research Consortium, Cincinnati Children's Hospital Medical Center, Ohio, USA
| | - Weihong Yuan
- Pediatric Neuroimaging Research Consortium, Cincinnati Children's Hospital Medical Center, Ohio, USA; University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Danielle L Reddington
- The SPORT Center, Division of Sports Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Jonathan D Ellis
- The SPORT Center, Division of Sports Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA; University of Cincinnati Medical Center, Department of Orthopaedic Surgery, Cincinnati, OH, USA
| | - James Leach
- University of Cincinnati College of Medicine, Cincinnati, OH, USA; Division of Radiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH
| | | | | | | | | | - Gregory D Myer
- The SPORT Center, Division of Sports Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA; Departments of Pediatrics and Orthopaedic Surgery, University of Cincinnati, Cincinnati, OH, USA; The Micheli Center for Sports Injury Prevention, Waltham, MA, USA
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Otadi K, Ghasemi M, Jalaie S, Bagheri H, Azizian M, Emamdoost S, Sarafraz H, Sepahvand M. A prophylactic effect of local vibration on quadriceps muscle fatigue in non-athletic males: a randomized controlled trial study. J Phys Ther Sci 2019; 31:223-226. [PMID: 30936635 PMCID: PMC6428647 DOI: 10.1589/jpts.31.223] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2018] [Accepted: 12/10/2018] [Indexed: 12/03/2022] Open
Abstract
[Purpose] This study was conducted to investigate the immediate prophylactic effects of
local vibration on quadriceps muscle fatigue in young non-athletic males. [Participants
and Methods] Thirty healthy young males were randomly assigned to vibration and sham
control groups. Participants in the local vibration group received a single session
vibration (2 minutes, 30 Hz). They also in the control group received a 2-minute
vibration, while the vibration system was off. MVC, RMS and median frequency of EMG
findings and time to reach fatigue were measured. [Results] Time to reach fatigue and MVC
in the local vibration group was significantly high than those in the sham control group.
[Conclusion] It seems that the prior local muscle vibration may be useful to attenuate
some signs and symptoms of muscle fatigue.
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Affiliation(s)
- Khadijeh Otadi
- Department of Physiotherapy, School of Rehabilitation, Tehran University of Medical Sciences: Tehran, Iran
| | - Mehri Ghasemi
- Department of Physiotherapy, School of Rehabilitation, Shahid Beheshti University of Medical Sciences, Iran
| | - Shohreh Jalaie
- Department of Physiotherapy, School of Rehabilitation, Tehran University of Medical Sciences: Tehran, Iran
| | - Hossein Bagheri
- Department of Physiotherapy, School of Rehabilitation, Tehran University of Medical Sciences: Tehran, Iran
| | - Morteza Azizian
- Department of Physiotherapy, School of Rehabilitation, Tehran University of Medical Sciences: Tehran, Iran
| | - Saeid Emamdoost
- Department of Physiology, Tehran University of Medical Sciences, Iran
| | - Hadi Sarafraz
- Department of Physiotherapy, School of Rehabilitation, Tehran University of Medical Sciences: Tehran, Iran
| | - Mustaph Sepahvand
- Department of Physiotherapy, School of Rehabilitation, Tehran University of Medical Sciences: Tehran, Iran
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Minetto MA, Botter A, Gamerro G, Varvello I, Massazza G, Bellomo RG, Maffiuletti NA, Saggini R. Contralateral effect of short-duration unilateral neuromuscular electrical stimulation and focal vibration in healthy subjects. Eur J Phys Rehabil Med 2019. [DOI: 10.23736/s1973-9087.18.05004-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Whole-Body Vibration on Performance of Quadriceps After ACL Reconstruction: A Blinded Randomized Controlled Trial. J Sport Rehabil 2018; 28:52-58. [PMID: 28872396 DOI: 10.1123/jsr.2017-0063] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
CONTEXT Whole-body vibration (WBV) has been widely used in clinical and sport practice. These devices produce constant vibrations, originating symmetrical waves that move along the vertical axis. It is suggested that mechanical stimuli produced by high vibration can be an alternative to improve neuromuscular performance and balance in different populations. However, there is still a lack of consensus in the literature regarding neurophysiological responses in the skeletal muscle immediately after the use of WBV, specifically in individuals subjected to anterior cruciate ligament reconstruction. OBJECTIVE To investigate the immediate effects of WBV on neuromuscular performance of the quadriceps femoris and postural oscillation of individuals subjected to anterior cruciate ligament reconstruction. DESIGN This is a blinded randomized controlled trial. SETTING University laboratory. PARTICIPANTS Forty-four men. INTERVENTION Participants were randomized into 2 groups: control group (n = 22, exercise protocol on the vibrating platform turned off) and WBV group (n = 22, exercises on the vibrating platform turned on, at a frequency of 50 Hz and amplitude of 4 mm). MAIN OUTCOME MEASURES The volunteers underwent a dynamometric evaluation of the quadriceps femoris and electromyographic activity of vastus lateralis and vastus medialis muscles, in addition to oscillation of the center of pressure at 2 different moments: before and immediately after the intervention protocol. RESULTS The intragroup comparison evidenced differences between preassessments and postassessments for the variables of laterolateral amplitude, peak torque, and total work. However, no significant difference was observed in the intergroup comparison after WBV protocol. CONCLUSION The use of WBV did not immediately alter the performance of the quadriceps femoris and the electromyographic activity of vastus lateralis and vastus medialis muscles. In addition, it also did not interfere with pressure center oscillation of individuals subjected to anterior cruciate ligament reconstruction.
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Active versus local vibration warm-up effects on knee extensors stiffness and neuromuscular performance of healthy young males. J Sci Med Sport 2018; 22:206-211. [PMID: 30017464 DOI: 10.1016/j.jsams.2018.07.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Revised: 06/29/2018] [Accepted: 07/02/2018] [Indexed: 11/23/2022]
Abstract
OBJECTIVES To compare the effects of local-vibration and active warm-up on knee extensors muscle stiffness and neuromuscular performance. DESIGN Experimental crossover study. METHODS Thirteen participants performed three 15-min warm-up protocols of control (CON), active (ACT) and local-vibration (LV) in separate testing session. Passive stiffness of vastus lateralis (VL) and vastus medialis (VM) by shear wave elastography and neuromuscular performance were assessed before and 2-min after each condition. RESULTS A decrease in muscle stiffness was reported after ACT for VL (-16.0±6.6%; p<0.001) and VM (-10.2±8.7%; p=0.03) while no changes were reported after CON (p=0.46 and p=0.34 for VL and VM, respectively) and LV (p=0.07 and p=0.46 for VL and VM, respectively). Maximal jump performances increased during squat (+8.5±6.6%; p<0.001) and countermovement jump (+5.2±5.8%; p<0.001) after ACT while no changes were reported after CON and LV during squat (p=0.16 and p=0.81, respectively) and countermovement jump (p=0.18 and p=0.31, respectively). We further report that each condition was ineffective to inducing changes in maximal voluntary isometric contraction force (p=0.18), rate of force development (p=0.92), twitch parameters (p>0.05) as well as central modulations as reported by the unchanged voluntary activation level (p=0.24) and maximal electromyography (EMG) recorded from the VL (p=0.44). CONCLUSIONS The active warm-up acutely reduced muscle stiffness and increased muscle performance during maximal dynamic tasks. With regard to LV, further studies are required to determine optimal parameters (frequency, amplitude, duration) to significantly increase muscle performance.
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Chen WC, Wu CM, Cai ZY. Effect of one bout of local vibration exercise with blood flow restriction on neuromuscular and hormonal responses. Physiol Int 2018; 105:166-176. [PMID: 29975125 DOI: 10.1556/2060.105.2018.2.9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
This study aimed to investigate the effects of single local vibration (LV) with and without blood flow restriction (BFR) on muscle activity and hormonal responses. A total of 12 physically inactive males were exposed to 10 sets of intermittent LV (35-40 Hz) on unilateral mid-quadriceps in the supine lying position and LV + BFR (inflated to 140 mmHg) sessions in a repeated-measures randomized crossover design, with a 1-week interval separating the sessions. The results indicated that the electromyography values from the rectus femoris during LV + BFR were greater than those during LV (p < 0.05). LV + BFR caused a minor increase in the lactate (LA) response (p < 0.05); LV with or without BFR failed to elicit change in growth hormone (GH) and testosterone (T) levels (p > 0.05). Cortisol (C) levels were decreased postexercise in both the sessions (p < 0.05). In conclusion, BFR elicited higher increase in muscle activity and metabolic response, but it did not induce hormonal responses. The exposure of LV and LV + BFR may only have a relief effect as detected by the reduction in C levels, probably because the LV did not elicit sufficient stimulus to the muscles.
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Affiliation(s)
- W-C Chen
- 1 Center for General Education, Chang Gung University of Science and Technology , Taoyuan, Taiwan.,2 Department of Otolaryngology-Head and Neck Surgery, Linkou Chang Gung Memorial Hospital , Taoyuan, Taiwan
| | - C-M Wu
- 3 Department of Leisure and Sports Management, Cheng Shiu University , Kaohsiung City, Taiwan
| | - Z-Y Cai
- 4 Division of Physical and Health Education, Center for General Education, National Sun Yat-sen University , Kaohsiung City, Taiwan
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Lee CL, Chu IH, Lyu BJ, Chang WD, Chang NJ. Comparison of vibration rolling, nonvibration rolling, and static stretching as a warm-up exercise on flexibility, joint proprioception, muscle strength, and balance in young adults. J Sports Sci 2018; 36:2575-2582. [PMID: 29697023 DOI: 10.1080/02640414.2018.1469848] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
Warm-up is an essential component for optimizing performance before an exercise session. This study investigated that the immediate effects of vibration rolling (VR), nonvibration rolling (NVR), and static stretching as a part of a warm-up regimen on the flexibility, knee joint proprioception, muscle strength, and dynamic balance of the lower extremity in young adults. Compared with the preintervention, VR induced the range of motion of knee flexion and extension significantly increased by 2.5% and 6%, respectively, and isokinetic peak torque and dynamic balance for muscle strength and dynamic balance increased by 33%-35% and 1.5%, respectively. In the three conditions, most outcomes between VR and NVR were comparable; however, the participants had a significantly higher knee joint reposition error after NVR than after VR, indicating that NVR would have a hampering knee joint proprioception effect. In particular, compared with static stretching, VR significantly increased the quadriceps muscle strength by 2-fold and dynamic balance by 1.8-fold. These findings suggest that athletic professionals may take VR into account for designing more efficient and effective preperformance routine to improve exercise performances. VR has high potential to translate into an on-field practical application.
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Affiliation(s)
- Chia-Lun Lee
- a Center for General Education , National Sun Yat-sen University , Kaohsiung , Taiwan
| | - I-Hua Chu
- b Department of Sports Medicine , Kaohsiung Medical University , Kaohsiung , Taiwan
| | - Bo-Jhang Lyu
- b Department of Sports Medicine , Kaohsiung Medical University , Kaohsiung , Taiwan
| | - Wen-Dien Chang
- c Department of Sports Medicine , China Medical University , Taichung , Taiwan
| | - Nai-Jen Chang
- b Department of Sports Medicine , Kaohsiung Medical University , Kaohsiung , Taiwan
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Pamukoff DN, Pietrosimone B, Ryan ED, Lee DR, Brown LE, Blackburn JT. Whole-Body Vibration Improves Early Rate of Torque Development in Individuals With Anterior Cruciate Ligament Reconstruction. J Strength Cond Res 2018; 31:2992-3000. [PMID: 27930453 DOI: 10.1519/jsc.0000000000001740] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Pamukoff, DN, Pietrosimone, B, Ryan, ED, Lee, DR, Brown, LE, and Blackburn, JT. Whole body vibration improves early rate of torque development in individuals with anterior cruciate ligament reconstruction. J Strength Cond Res 31(11): 2992-3000, 2017-The purpose of this study was to compare the effect of whole-body vibration (WBV) and local muscle vibration (LMV) on early and late quadriceps rate of torque development (RTD), and electromechanical delay (EMD) in individuals with anterior cruciate ligament reconstruction (ACLR). Twenty individuals with ACLR were recruited for this study. Participants performed isometric squats while being exposed to WBV, LMV, or no vibration (control) in a randomized order during separate visits. Early and late quadriceps RTD and EMD were assessed during a maximal voluntary isometric knee extension before and immediately after WBV, LMV, or control. There was a significant condition by time interaction for early RTD (p = 0.045) but not for late RTD (p = 0.11) or EMD of the vastus medialis (p = 0.15), vastus lateralis (p = 0.17), or rectus femoris (p = 0.39). Post hoc analyses indicated a significant increase in early RTD after WBV (+5.59 N·m·s·kg; 95% confidence interval, 1.47-12.72; p = 0.007). No differences were observed in the LMV or control conditions, and no difference was observed between conditions at posttest. The ability to rapidly produce knee extension torque is essential to physical function, and WBV may be appropriate to aid in the restoration of RTD after ACLR.
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Affiliation(s)
- Derek N Pamukoff
- 1Department of Kinesiology, California State University Fullerton, Fullerton, California; 2Department of Exercise and Sport Science, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina; 3The Department of Allied Health Sciences, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina; and 4Department of Orthopedics, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
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Lin TC, Cheng CC, Cai ZY. Effects of local vibration with blood flow restriction on muscle activation. ISOKINET EXERC SCI 2018. [DOI: 10.3233/ies-171174] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- Tsong-Cheng Lin
- Division of Physical and Health Education, Center for General Education, National Sun Yat-sen University, Kaohsiung City, Taiwan
| | - Chi-Cheng Cheng
- Department of Mechanical and Electro-Mechanical Engineering, National Sun Yat-sen University, Kaohsiung City, Taiwan
| | - Zong-Yan Cai
- Division of Physical and Health Education, Center for General Education, National Sun Yat-sen University, Kaohsiung City, Taiwan
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Effect of Whole-Body Vibration on Sagittal Plane Running Mechanics in Individuals With Anterior Cruciate Ligament Reconstruction: A Randomized Crossover Trial. Arch Phys Med Rehabil 2018; 99:973-980. [PMID: 29407520 DOI: 10.1016/j.apmr.2017.11.019] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Revised: 10/31/2017] [Accepted: 11/26/2017] [Indexed: 01/13/2023]
Abstract
OBJECTIVE To examine the effect of whole-body vibration (WBV) on running biomechanics in individuals with anterior cruciate ligament reconstruction (ACLR). DESIGN Single-blind randomized crossover trial. SETTING Research laboratory. PARTICIPANTS Individuals (N=20) with unilateral ACLR (age [± SD]=22.3 [±3.3] years; mass=71.8 [±15.3] kg; time since ACLR=44.9 [±22.8] months; 15 females, 10 patellar tendon autograft, 7 hamstrings autograft, 3 allograft; International Knee Documentation Committee Score=83.5 [±9.3]). MAIN OUTCOME MEASURE Participants performed isometric squats while being exposed to WBV or no vibration (control). WBV and control conditions were delivered in a randomized order during separate visits separated by 1-week washout periods. Running biomechanics of the injured and uninjured limbs were evaluated before and immediately after each intervention. Dependent variables included peak vertical ground reaction force (GRF) and loading rate (LR), peak knee flexion angle and external moment, and knee flexion excursion during the stance phase of running. RESULTS There was an increase in knee flexion excursion (+4.1°, 95% confidence interval [CI]: 0.65, 7.5°) and a trend toward a reduction in instantaneous LR after WBV in the injured limb (-4.03 BW/sec-1, 95% CI -0.38, -7.69). No effect was observed on peak GRF, peak knee flexion angle, or peak external knee flexion moment, and no effect was observed in the uninjured limb. CONCLUSIONS Our findings indicate that a single session of WBV acutely increases knee flexion excursion. WBV could be useful to improve running characteristics in individuals with knee pathology.
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Abstract
BACKGROUND Whole-body vibration training (WBVT) confers a continuous vibration stimuli to the body. Although some reports have discussed the effects of whole-body vibration (WBV) on bone mineral density and muscle strength, study of WBV effects on lean mass have not been determined. The purpose of the present meta-analysis was to evaluate published, randomized controlled trials (RCTs) that investigated the effects of WBVT on lean mass. METHODS We identified only RCTs by searching databases, including Web of Science, PubMed, Scopus, Embase, and the Cochrane Library from inception to March 2017. Data extraction, quality assessment, and meta-analysis were performed. RESULTS Ten RCTs with 5 RCTs concentrating on older people, 3 on young adults, and 2 on children and adolescents were included. We additionally explored the effect of WBVT on postmenopausal women (6 trials from the 10 trials). Significant improvements in lean mass with WBVT were merely found in young adults (P = .02) but not in other populations compared to control group. CONCLUSION The effect of WBVT found in the present meta-analysis may be used in counteracting the loss of muscle mass in younger adults. Moreover, optimal WBVT protocols for greater muscle hypertrophy are expected to be investigated.
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Affiliation(s)
| | - Jianxiong Ma
- Biomechanics Labs of Orthopaedics Institute, Tianjin Hospital, Tianjin, People's Republic of China
| | - Bin Lu
- Biomechanics Labs of Orthopaedics Institute, Tianjin Hospital, Tianjin, People's Republic of China
| | - Xin-long Ma
- Biomechanics Labs of Orthopaedics Institute, Tianjin Hospital, Tianjin, People's Republic of China
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Alghadir AH, Anwer S, Zafar H, Iqbal ZA. Effect of localised vibration on muscle strength in healthy adults: a systematic review. Physiotherapy 2017; 104:18-24. [PMID: 28947078 DOI: 10.1016/j.physio.2017.06.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Accepted: 06/06/2017] [Indexed: 10/19/2022]
Abstract
OBJECTIVE To investigate the effects of local vibration on muscle strength in healthy adults. DATA SOURCES The electronic databases PubMed, CINAHL, Scopus and Web of Science were searched using a combination of the following keywords: vibration, vibration therapy, power, maximal voluntary contraction, performance, rate of force development and vibratory exercise. In addition, the Medical Subject Headings 'vibration', 'strength' and 'exercise' were used. The bibliographical search was limited to articles published in English. STUDY SELECTION Trials that evaluated the effect of localised vibration on muscle strength in healthy humans were included. DATA EXTRACTION Two independent evaluators verified the quality of the selected studies using the PEDro Scale and the Cochrane Collaboration's tool for assessing the risk of bias. Muscle strength was calculated for each intervention. RESULTS In total, 29 full-text studies were assessed for eligibility. Eighteen studies did not match the inclusion criteria, and were excluded. The 11 studies included in this review had an average PEDro score of 5.36/10. Most of the studies reported significant improvements in muscle strength after the application of local vibration. There was considerable variation in the vibration training parameters and target muscle location. CONCLUSIONS The use of local vibration on the target muscle can enhance muscle strength in healthy adults. Further well-designed controlled studies are required to confirm the effect of local vibration training on muscle strength.
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Affiliation(s)
- A H Alghadir
- Rehabilitation Research Chair, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia
| | - S Anwer
- Rehabilitation Research Chair, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia; Dr. D. Y. Patil College of Physiotherapy, Dr. D. Y. Patil Vidyapeeth, Pune, India.
| | - H Zafar
- Rehabilitation Research Chair, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia; Department of Odontology, Clinical Oral Physiology, Umea University, Umea, Sweden
| | - Z A Iqbal
- Rehabilitation Research Chair, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia
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36
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Acute and chronic neuromuscular adaptations to local vibration training. Eur J Appl Physiol 2017; 117:1939-1964. [PMID: 28766150 DOI: 10.1007/s00421-017-3688-8] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2017] [Accepted: 07/22/2017] [Indexed: 12/19/2022]
Abstract
Vibratory stimuli are thought to have the potential to promote neural and/or muscular (re)conditioning. This has been well described for whole-body vibration (WBV), which is commonly used as a training method to improve strength and/or functional abilities. Yet, this technique may present some limitations, especially in clinical settings where patients are unable to maintain an active position during the vibration exposure. Thus, a local vibration (LV) technique, which consists of applying portable vibrators directly over the tendon or muscle belly without active contribution from the participant, may present an alternative to WBV. The purpose of this narrative review is (1) to provide a comprehensive overview of the literature related to the acute and chronic neuromuscular changes associated with LV, and (2) to show that LV training may be an innovative and efficient alternative method to the 'classic' training programs, including in the context of muscle deconditioning prevention or rehabilitation. An acute LV application (one bout of 20-60 min) may be considered as a significant neuromuscular workload, as demonstrated by an impairment of force generating capacity and LV-induced neural changes. Accordingly, it has been reported that a training period of LV is efficient in improving muscular performance over a wide range of training (duration, number of session) and vibration (frequency, amplitude, site of application) parameters. The functional improvements are principally triggered by adaptations within the central nervous system. A model illustrating the current research on LV-induced adaptations is provided.
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Pamukoff DN, Pietrosimone B, Lewek MD, Ryan ED, Weinhold PS, Lee DR, Blackburn JT. Immediate effect of vibratory stimuli on quadriceps function in healthy adults. Muscle Nerve 2017; 54:469-78. [PMID: 26872828 DOI: 10.1002/mus.25081] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2015] [Revised: 02/02/2016] [Accepted: 02/10/2016] [Indexed: 12/28/2022]
Abstract
INTRODUCTION The purpose of this study was to compare the effect of whole body vibration (WBV) and local muscle vibration (LMV) on quadriceps function. METHODS Sixty adults were randomized to WBV, LMV, or control groups. Quadriceps function [Hoffmann (H)-reflex, active motor threshold (AMT), motor evoked potential (MEP) and electromyographic amplitude, peak torque (PT), rate of torque development (RTD), and central activation ratio (CAR)] was assessed before and immediately after and 10 and 20 minutes after interventions. RESULTS WBV improved PT, CAR, AMT, EMG, and MEP amplitude, and EMG amplitude and CAR were greater than control after application. LMV improved EMG amplitude and AMT, and EMG amplitude was greater than control after application. AMT remained lower 10 and 20 minutes after WBV and LMV. No differences were noted between LMV and WBV. Vibration did not influence H-reflex or RTD. CONCLUSIONS WBV and LMV increased quadriceps function and may be used to enhance the efficacy of strengthening protocols. Muscle Nerve 54: 469-478, 2016.
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Affiliation(s)
- Derek N Pamukoff
- Department of Kinesiology, California State University, Fullerton, 800 North State College Boulevard, Fullerton, California, 92831, USA.,Department of Exercise and Sport Science, California State University, Fullerton, Fullerton, California, USA.,Curriculum in Human Movement Science, California State University, Fullerton, Fullerton, California, USA
| | - Brian Pietrosimone
- Department of Exercise and Sport Science, California State University, Fullerton, Fullerton, California, USA.,Curriculum in Human Movement Science, California State University, Fullerton, Fullerton, California, USA
| | - Michael D Lewek
- Department of Exercise and Sport Science, California State University, Fullerton, Fullerton, California, USA.,Curriculum in Human Movement Science, California State University, Fullerton, Fullerton, California, USA.,Division of Physical Therapy, Department of Allied Health Sciences, University of North Carolina, Chapel Hill, North Carolina, USA
| | - Eric D Ryan
- Department of Exercise and Sport Science, California State University, Fullerton, Fullerton, California, USA.,Curriculum in Human Movement Science, California State University, Fullerton, Fullerton, California, USA
| | - Paul S Weinhold
- Curriculum in Human Movement Science, California State University, Fullerton, Fullerton, California, USA.,Department of Orthopedics, California State University, Fullerton, Fullerton, California, USA.,Joint Department of Biomedical Engineering, University of North Carolina and North Carolina State University, Chapel Hill, North Carolina, USA
| | - Dustin R Lee
- Department of Exercise and Sport Science, California State University, Fullerton, Fullerton, California, USA
| | - J Troy Blackburn
- Department of Exercise and Sport Science, California State University, Fullerton, Fullerton, California, USA.,Curriculum in Human Movement Science, California State University, Fullerton, Fullerton, California, USA.,Department of Orthopedics, California State University, Fullerton, Fullerton, California, USA
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Cochrane DJ. Effectiveness of using wearable vibration therapy to alleviate muscle soreness. Eur J Appl Physiol 2017; 117:501-509. [PMID: 28168554 DOI: 10.1007/s00421-017-3551-y] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2016] [Accepted: 01/18/2017] [Indexed: 11/25/2022]
Abstract
PURPOSE To examine the acute and short-term effect of a wearable vibration device following strenuous eccentric exercise of the elbow flexors. METHODS Physically active males (n = 13) performed vibration therapy (VT) and control following eccentric exercise. The arms were randomised and counterbalanced, separated by 14 days. 15 min of VT (120 Hz) was applied immediately and 24, 48, and 72 h after eccentric exercise while the contralateral arm performed no VT (control). Muscle (isometric and concentric) strength, range of motion, electromyography (EMG), muscle soreness and creatine kinase were taken pre-exercise, immediately and 24, 48, and 72 h post-eccentric exercise. Additionally, the acute effect of VT of muscle strength, range of motion, EMG, muscle soreness was also investigated immediately after VT. RESULTS In the short-term VT was able to significantly reduce the level of biceps brachii pain at 24 h (p < 0.05) and 72 h (p < 0.01), enhance pain threshold at 48 h (p < 0.01) and 72 h (p < 0.01), improve range of motion at 24 h (p < 0.05), 48 h (p < 0.01) and 72 h (p < 0.01) and significantly (p < 0.05) reduced creatine kinase at 72 h compared to control. Acutely, following VT treatment muscle pain and range of motion significantly improved (p < 0.05) at 24 h post, 48 h post, and 72 h post but no significant changes in muscle strength and EMG were reported acutely or short-term. CONCLUSIONS Acute and short-term VT attenuated muscle soreness, creatine kinase and improved range of motion; however, there was no improvement of muscle strength recovery compared to control following eccentric exercise of the elbow flexors.
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Affiliation(s)
- Darryl J Cochrane
- School of Sport and Exercise, Massey University, Private Bag 11 222, Palmerston North, New Zealand.
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Whole-Body and Local Muscle Vibration Immediately Improve Quadriceps Function in Individuals With Anterior Cruciate Ligament Reconstruction. Arch Phys Med Rehabil 2016; 97:1121-9. [PMID: 26869286 DOI: 10.1016/j.apmr.2016.01.021] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2016] [Accepted: 01/21/2016] [Indexed: 11/22/2022]
Abstract
OBJECTIVE To determine the immediate effects of a single session of whole-body vibration (WBV) and local muscle vibration (LMV) on quadriceps function in individuals with anterior cruciate ligament reconstruction (ACLR). DESIGN Singe-blind, randomized crossover trial. SETTING Research laboratory. PARTICIPANTS Population-based sample of individuals with ACLR (N=20; mean age ± SD, 21.1±1.2y; mean mass ± SD, 68.3±14.9kg; mean time ± SD since ACLR, 50.7±21.3mo; 14 women; 16 patellar tendon autografts, 3 hamstring autografts, 1 allograft). INTERVENTIONS Participants performed isometric squats while being exposed to WBV, LMV, or no vibration (control). Interventions were delivered in a randomized order during separate visits separated by 1 week. MAIN OUTCOME MEASURES Quadriceps active motor threshold (AMT), motor-evoked potential (MEP) amplitude, Hoffmann reflex (H-reflex) amplitude, peak torque (PT), rate of torque development (RTD), electromyographic amplitude, and central activation ratio (CAR) were assessed before and immediately after a WBV, LMV, or control intervention. RESULTS There was an increase in CAR (+4.9%, P=.001) and electromyographic amplitude (+16.2%, P=.002), and a reduction in AMT (-3.1%, P<.001) after WBV, and an increase in CAR (+2.7%, P=.001) and a reduction in AMT (-2.9%, P<.001) after LMV. No effect was observed after WBV or LMV in H-reflex, RTD, or MEP amplitude. AMT (-3.7%, P<.001), CAR (+5.7%, P=.005), PT (+.31Nm/kg, P=.004), and electromyographic amplitude (P=.002) in the WBV condition differed from the control condition postapplication. AMT (-3.0% P=.002), CAR (+3.6%, P=.005), and PT (+.30Nm/kg, P=.002) in the LMV condition differed from the control condition postapplication. No differences were observed between WBV and LMV postapplication in any measurement. CONCLUSIONS WBV and LMV acutely improved quadriceps function and could be useful modalities for restoring quadriceps strength in individuals with knee pathologies.
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Abstract
Muscle strength is a determinate of physical function and increasing muscle strength is an important clinical goal for patients with knee injury. This article discusses the emerging evidence regarding a novel rehabilitation strategy that uses disinhibitory modalities to increase neuromuscular activation in conjunction with traditional muscle strengthening for the purpose of maximizing strength gains following acute knee injury or surgery and in patients with knee osteoarthritis. The use of disinhibitory modalities and specific types of neuromuscular training for clinically maximizing strength are discussed.
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Blackburn JT, Pamukoff DN, Sakr M, Vaughan AJ, Berkoff DJ. Whole body and local muscle vibration reduce artificially induced quadriceps arthrogenic inhibition. Arch Phys Med Rehabil 2014; 95:2021-8. [PMID: 25083559 DOI: 10.1016/j.apmr.2014.07.393] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2014] [Accepted: 07/10/2014] [Indexed: 11/24/2022]
Abstract
OBJECTIVE To evaluate the effects of whole body vibration (WBV) and local muscle vibration (LMV) on quadriceps function after experimental knee effusion (ie, simulated pathology). DESIGN Randomized controlled trial. SETTING Research laboratory. PARTICIPANTS Healthy volunteers (N=43) were randomized to WBV (n=14), LMV (n=16), or control (n=13) groups. INTERVENTIONS Saline was injected into the knee to induce quadriceps arthrogenic muscle inhibition (AMI). All groups then performed isometric squats while being exposed to WBV, LMV, or no vibration (control). MAIN OUTCOME MEASURES Quadriceps function was assessed at baseline, immediately after effusion, and immediately and 5 minutes after each intervention (WBV, LMV, control) via voluntary peak torque (VPT) and the central activation ratio (CAR) during maximal isometric knee extension on a multifunction dynamometer. RESULTS The CAR improved in the WBV (11.4%, P=.021) and LMV (7.3%, P<.001) groups immediately postintervention, but they did not improve in the control group. Similarly, VPT increased by 16.5% (P=.021) in the WBV group and 23% (P=.078) in the LMV group immediately postintervention, but it did not increase in the control group. The magnitudes of improvements in the CAR and VPT did not differ between the WBV and LMV groups. CONCLUSIONS Quadriceps AMI is a common complication following knee pathology that produces quadriceps dysfunction and increases the risk of posttraumatic osteoarthritis. Quadriceps strengthening after knee pathology is often ineffective because of AMI. WBV and LMV improve quadriceps function equivocally after simulated knee pathology, effectively minimizing quadriceps AMI. Therefore, these stimuli may be used to enhance quadriceps strengthening, therefore improving the efficacy of rehabilitation and reducing the risk of osteoarthritis.
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Affiliation(s)
- J Troy Blackburn
- Neuromuscular Research Laboratory; Department of Exercise and Sport Science; Program in Human Movement Science; Department of Orthopaedics.
| | - Derek N Pamukoff
- Neuromuscular Research Laboratory; Department of Exercise and Sport Science; Program in Human Movement Science
| | - Mark Sakr
- Department of Family Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Aaron J Vaughan
- Department of Family Medicine, Mountain Area Health Education Center, Asheville, NC
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