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Xie H, Song H, Schmidt C, Chang WP, Chien JH. The effect of mechanical vibration-based stimulation on dynamic balance control and gait characteristics in healthy young and older adults: A systematic review of cross-sectional study. Gait Posture 2023; 102:18-38. [PMID: 36871475 DOI: 10.1016/j.gaitpost.2023.02.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/22/2022] [Revised: 02/16/2023] [Accepted: 02/21/2023] [Indexed: 03/07/2023]
Abstract
BACKGROUND A good dynamic balance control and stable gait played an important role in the daily ambulation, especially for older adults with sensorimotor degeneration. This study aimed to systematically review the effects and potential mechanisms of mechanical vibration-based stimulation (MVBS) on dynamic balance control and gait characteristics in healthy young and older adults. METHOD Five bioscience and engineering databases, including MEDLINE via PubMed, CINAHL via EBSCO, Cochrane Library, Scopus, and Embase, were searched until September 4th, 2022. Studies published between 2000 and 2022 in English and Chinese involving mechanical vibration related to gait and dynamic balance were included. The procedure was followed via the preferred reporting items for systematic reviews and meta-analysis method. The methodological quality of included studies was assessed using the NIH study quality assessment tool for observational cohort and cross-sectional studies. RESULTS A total of 41 cross-sectional studies met the inclusion criteria and were included in this study. Eight studies were good-quality while 26 were moderate-quality and 7 were poor-quality. There were six categories of MVBS at various frequencies and amplitudes utilized in included studies, including plantar vibration, focal muscle vibration, Achilles tendon vibration, vestibular vibration, cervical vibration, and vibration on nail of hallux. SIGNIFICANCE Different types of MVBS targeting different sensory systems affected the dynamic balance control and gait characteristics differently. MVBS could be used to provide improvement or perturbation to specific sensory systems, to induce different sensory reweight strategies during gait.
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Affiliation(s)
- Haoyu Xie
- Division of Physical Therapy Education, College of Allied Health Professions, University of Nebraska Medical Center, Omaha, NE, USA
| | - Huiyan Song
- Department of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Cindy Schmidt
- Leon S. McGoogan Health Sciences Library, University of Nebraska Medical Center, Omaha, NE, USA
| | - Wen-Pin Chang
- Department of Occupational Therapy, Rocky Mountain University of Health Professions, Provo, UT, USA
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Kang Z, Xing H, Lin Q, Meng F, Gong L. Effectiveness of therapeutic massage for improving motor symptoms in Parkinson's disease: A systematic review and meta-analysis. Front Neurol 2022; 13:915232. [PMID: 36133798 PMCID: PMC9483027 DOI: 10.3389/fneur.2022.915232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Accepted: 07/19/2022] [Indexed: 11/13/2022] Open
Abstract
Background Parkinson's disease (PD) causes movement disorders [called motor symptoms (MS)], and motor dysfunction poses a great barrier to the quality of life. Although pharmacological therapy like levodopa can relieve the symptoms, it can also cause complications, such as psychosis, nausea, and dyskinesia. A therapy with more minor side effects is needed for PD. Therapeutic massages are the most commonly used forms of complementary and alternative medicine (CAM), but no systematic review and meta-analysis have focused on the efficacy of massage on PD. Objective To evaluate the quality of evidence and efficacy of therapeutic massage for improving MS in PD. Methods We independently searched four electronic databases, including Chinese National Knowledge Infrastructure (CNKI), MEDLINE/PubMed, Embase, and Cochrane Library, for randomized controlled trials (RCTs) about therapeutic massage and other available manual therapies improving MS in PD from January 1, 2012, to December 31, 2021 (recent 10 years). The main outcome measures were total effectiveness and the Unified Parkinson's Disease Rating Scale (UPDRS), including UPDRS total, II, and III. For the statistical analysis, the risk ratio, standard mean difference, and 95% confidence interval (CI) were used to calculate effect sizes between groups. To determine heterogeneity, statistical index I2 was used. Results A total of 363 PD participants in seven RCTs and one randomized pilot-control study were included in this meta-analysis. The total effectiveness showed that therapeutic massage was more effective than the intervention of the control group for improving MS [ratio risk (RR): 1.33, 95% CI (1.14–1.55), p = 0.0002]. The UPDRS-III scores showed that massage improves motor function more than the control group [SMD = −0.46, 95% CI (−0.67, −0.24), p < 0.00001]. But we found that massage performed no better than the control group in improving daily life activities [SMD = −0.15, 95% CI (−0.40, 0.10), p = 0.23]. Conclusion Therapeutic massage was effective in improving MS in PD. It is suggested to be an appropriate form of CAM in treating PD. Systematic Review Registration https://www.crd.york.ac.uk/PROSPERO/display_record.php?RecordID=323182, identifier: CRD42022323182.
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Affiliation(s)
- Zhiran Kang
- Department of Tuina, Shanghai YueYang Hospital of Integrated Traditional Chinese and Western Medicine Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Hua Xing
- Department of Tuina, Shanghai YueYang Hospital of Integrated Traditional Chinese and Western Medicine Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Qiang Lin
- Department of Tuina, Shanghai General Hospital, Shanghai, China
| | - Fanchao Meng
- Department of Tuina, Shanghai YueYang Hospital of Integrated Traditional Chinese and Western Medicine Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Li Gong
- Department of Tuina, Shanghai YueYang Hospital of Integrated Traditional Chinese and Western Medicine Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
- *Correspondence: Li Gong
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The Effects of Constraining Head Rotation on Eye and Whole-Body Coordination During Standing Turns at Different Speeds. J Appl Biomech 2022; 38:301-311. [PMID: 35977716 DOI: 10.1123/jab.2021-0117] [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: 04/04/2021] [Revised: 04/25/2022] [Accepted: 06/24/2022] [Indexed: 11/18/2022]
Abstract
A limitation of the ability to rotate the head with respect to the upper body has been associated with turning problems; however, the extent of head constraints on whole-body coordination has not been fully determined. The aim of this study was to limit head on body rotation and observe the effects on whole-body coordination during standing turns at various speeds. Twelve participants completed standing turns at 180°. A Vicon motion system and a BlueGain Electrooculography system were used to record movement kinematics and measure horizontal eye movements, respectively. All participants were tested at 3 randomized speeds, and under 2 conditions with or without their head constrained using a head, neck, and chest brace which restricted neck movement. A repeated-measures analysis of variance found a significant main effect of turning speed on the onset latency of all segments, peak head-thorax angular separation, and step characteristics. Constraining the head rotation had multiple significant effects including delayed onset latency and decreased intersegmental coordination defined as peak head segmental angular separations, increased total step and step duration, and decreased step size. This indicates the contribution of speed, head, and neck constraints, which have been associated with falls during turning and whole-body coordination.
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Kotoshiba S, Maeda N, Morikawa M, Yoshimi M, Sakai S, Urabe Y. The acute effects of vibratory stimuli during exercise on the sensorimotor control of the shoulder complex: A pilot study. J Back Musculoskelet Rehabil 2022; 35:819-827. [PMID: 34657871 DOI: 10.3233/bmr-210045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND Functional stability of the shoulder requires a balance of active forces, passive forces, and control subsystems of the joint complex. Although whole-body vibration enhances shoulder muscle function and proprioception, the impact of vibration on the sensorimotor control of the shoulder joint remains unclear. OBJECTIVE To investigate the acute effect of vibratory stimuli on the sensorimotor control of the shoulder joint. METHODS Fifteen male participants (age, 22.7 ± 2.3 years) were included and performed the exercise in a modified push-up position with partial weight-bearing on a vibration platform with and without vibratory stimuli. The vibration protocol included six sets lasting for 30 s each with a 30-s rest between sets. The main outcome measures included the upper limb static stability test, Upper Quarter Y Balance Test (UQYBT), and electromyography data of the upper limb. RESULTS Vibratory stimuli resulted in an increased UQYBT score (all directions; P< 0.01) and infraspinatus, serratus anterior, and lower trapezius muscle activity (P< 0.05) between pre- and post-exercise versus the control condition. Stabilometric parameters showed no significant interaction between condition and time. CONCLUSIONS Vibratory stimuli could maximize training benefits while limiting injury risk for athletes. Our findings could guide the development of rehabilitation programs for patients with shoulder instability.
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Mooti R, Park H. Contribution of Cervical Proprioception, Vision, and Vestibular Feedback on Reducing Dynamic Head–Trunk Orientation Error in the Yaw Direction. Front Neurosci 2022; 15:774448. [PMID: 35140583 PMCID: PMC8818861 DOI: 10.3389/fnins.2021.774448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2021] [Accepted: 12/17/2021] [Indexed: 11/13/2022] Open
Abstract
The contribution of cervical proprioception, vision, and vestibular feedback to the dynamic head–trunk orientation error in the yaw direction was investigated to further the understanding over the mechanism of coordination among different sensory modalities for dynamic head–trunk orientation. To test the contribution of each sensory modality, individually and together, to dynamic head–trunk orientation, 10 healthy human subjects participated in the extended cervical joint position error test, measuring the ability of repositioning the head back to the reference orientation after 45° yaw rotation of head or trunk. The error between initial and returned angles was measured. The test was repeated under eight different conditions of sensory feedback, with or without each of three sensory modalities. Each subject completed 64 trials (8 per condition) in a random order for fair comparison. No change was found in bias when one of the three modalities was missing, while variance was largest at the lack of dynamic cervical proprioception. When two of the three modalities were missing (i.e., one of the three modalities was present), both bias and variance were minimum at the presence of cervical proprioception. Additionally, both visual and vestibular feedback was redundant (i.e., no further improvement in both bias and variance), if the other one (visual or vestibular feedback) was present with dynamic cervical proprioception. In sum, the experimental results suggest that dynamic cervical proprioception is the most significant sensory modality for reducing the dynamic head–trunk orientation error in the yaw direction.
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Grostern J, Lajoie Y, Paquet N. The Fukuda Stepping Test Is Influenced by a Concurrent Cognitive Task and Step Height in Healthy Young Adults: A Descriptive Study. Physiother Can 2021; 73:322-328. [PMID: 34880536 DOI: 10.3138/ptc-2020-0013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Purpose: The Fukuda stepping test assesses spatial orientation in people with vestibular disorders. To standardize the test, it is important to know which factors influence the outcome. This study investigated the impact of two factors, a concurrent cognitive task and step height, on the Fukuda stepping test in healthy individuals. Method: A total of 16 young adults participated and completed 20 trials of the 50-step Fukuda stepping test in four conditions: comfortable and high step height and with and without a cognitive task. Body kinematics were collected using the three-dimensional motion analysis Vicon system. The cognitive task was to listen to a sequence of three-digit numbers and identify the total number of times that one pre-determined digit was presented. Results: All participants slowly turned and drifted forward during the test. The concurrent cognitive task yielded significantly shorter forward displacement and lateral deviation and lower stepping height, and high stepping produced significantly greater body rotation and lateral deviation. Conclusions: Performance on the Fukuda stepping test in healthy young individuals is influenced by a concurrent cognitive task and by step height. Clinicians and researchers must instruct people to use a comfortable step height during the test, and they must be aware that a concurrent cognitive task may improve test performance, at least among young adults.
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Affiliation(s)
- Jessica Grostern
- School of Human Kinetics, Faculty of Health Sciences, University of Ottawa, Ottawa, Ontario, Canada
| | - Yves Lajoie
- School of Human Kinetics, Faculty of Health Sciences, University of Ottawa, Ottawa, Ontario, Canada
| | - Nicole Paquet
- School of Rehabilitation Science, Faculty of Health Sciences, University of Ottawa, Ottawa, Ontario, Canada
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Tapin A, Duclos NC, Jamal K, Duclos C. Perception of gait motion during multiple lower-limb vibrations in young healthy individuals: a pilot study. Exp Brain Res 2021; 239:3267-3276. [PMID: 34463827 DOI: 10.1007/s00221-021-06199-1] [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: 02/02/2021] [Accepted: 08/17/2021] [Indexed: 11/24/2022]
Abstract
In virtual reality (VR), immersion can be created through synchronous visuomotor stimulations and enhanced by adding auditory or kinesthetic stimulations. Multiple patterned vibrations applied at the lower limbs might be a way to induce kinesthetic perception of gait motion that could be combined with VR stimulations to add the perception of self-motion. However, gait motion perception using multiple vibrations has not yet been evaluated. The objective of the study was to quantify the perception of gait motion while applying multiple, patterned vibrations to the lower limbs in healthy individuals. Twenty young healthy participants (25.1 ± 4.4 years) experienced multiple vibrations in 1-min trials. Stimulation consisted of a vibration pattern based on the sequence of muscle lengthening during a 2-s gait cycle. Stimulation was applied on participants in a standing position, under 11 experimental conditions controlling visual information (eyes open/closed), vibration frequency (40-80 Hz), and number and location of the joints stimulated (hips, knees, ankles isolated or combined two by two). Perception of gait motion was quantified for each condition using a 10-point visual analog scale (VAS, 0: "no perception", 10: "Perception of gait movements"). All participants except one achieved a score higher than 5/10 in at least one condition. Great variability was found for perception of gait motion within participants and conditions (VAS ranging from 0 to 9.6/10). Differences were found between conditions (p < 0.01), with higher mean and median scores in conditions that included knee vibration. Inducing gait motion perception is possible using multiple vibrations in healthy individuals. Stimulation of the knees seems to positively influence perception of gait motion.
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Affiliation(s)
- Alexandre Tapin
- Institut Universitaire sur la Réadaptation en Déficience Physique de Montréal (IURDPM)-Center for Interdisciplinary Research in Rehabilitation of Greater Montréal (CRIR), School of Rehabilitation, Université de Montréal, Station Centre-Ville, P.O. Box 6128, Montreal, QC, H3C 3J7, Canada
| | - Noémie C Duclos
- Bordeaux Population Health Research Center, INSERM U1219, University of Bordeaux, 33000, Bordeaux, France.,Institut Universitaire des Sciences de la Réadaptation (IUSR), Collège Sciences de la Santé, University of Bordeaux, 33000, Bordeaux, France
| | - Karim Jamal
- Institut Universitaire sur la Réadaptation en Déficience Physique de Montréal (IURDPM)-Center for Interdisciplinary Research in Rehabilitation of Greater Montréal (CRIR), School of Rehabilitation, Université de Montréal, Station Centre-Ville, P.O. Box 6128, Montreal, QC, H3C 3J7, Canada
| | - Cyril Duclos
- Institut Universitaire sur la Réadaptation en Déficience Physique de Montréal (IURDPM)-Center for Interdisciplinary Research in Rehabilitation of Greater Montréal (CRIR), School of Rehabilitation, Université de Montréal, Station Centre-Ville, P.O. Box 6128, Montreal, QC, H3C 3J7, Canada.
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Paquet N, Polskaia N, Michaud L, Lajoie Y. Effect of Dual Task on Step Variability during Stepping in Place without Vision. J Mot Behav 2021; 54:337-343. [PMID: 34402745 DOI: 10.1080/00222895.2021.1965526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Stepping in place without vision is a spatial orientation task that is associated with unperceived foot displacements. This study was aimed at determining whether foot displacement variability is modified by a concurrent cognitive task. Fourteen young adults stepped for 50 steps with their vision blocked and performed a continuous mental counting task. 3-D Kinematic data from both feet (heel and big toe) was recorded. The variability of foot displacements was either unchanged or slightly lower in dual task, while the foot displacements were significantly shorter (p < 0.05) in dual task than without the cognitive task. The results suggest that the concurrent cognitive task might have allowed a better control of the repetitive lower limb movements.
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Affiliation(s)
- Nicole Paquet
- Faculty of Health Sciences, School of Rehabilitation Science, University of Ottawa, Ottawa, Ontario, Canada
| | - Nadia Polskaia
- Faculty of Health Sciences, School of Human Kinetics, University of Ottawa, Ottawa, Ontario, Canada
| | - Lucas Michaud
- Faculty of Health Sciences, School of Human Kinetics, University of Ottawa, Ottawa, Ontario, Canada
| | - Yves Lajoie
- Faculty of Health Sciences, School of Human Kinetics, University of Ottawa, Ottawa, Ontario, Canada
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Malaya CA, Haworth J, Pohlman KA, Smith DL. Immediate impact of extremity manipulation on dual task performance: a randomized, crossover clinical trial. Chiropr Man Therap 2021; 29:6. [PMID: 33541378 PMCID: PMC7863424 DOI: 10.1186/s12998-021-00366-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Accepted: 01/25/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Previous research demonstrated that manipulation of the extremities was associated with changes in multisegmental postural sway as well as improvement in a lower extremity balancing task. We were interested if these effects would extend to an upper extremity task. Our aim in this study was to investigate whether extremity manipulation could influence dual task performance where the explicit suprapostural task was balancing a water filled tube in the frontal plane. METHODS Participants were healthy volunteers (aged 21-32 years). Upper- or lower-extremity manipulations were delivered in a participant and assessor blinded, randomized crossover, clinical trial. Postural (center of pressure) and suprapostural (tube motion) measurements in the frontal plane were made pre-post manipulation under eyes open and eyes closed conditions using a BTrackS™ force plate and a Shimmer inertial measurement unit, respectively. Pathlength, range, root mean square and sample entropy were calculated to describe each signal during the dual task performance. RESULTS There was no main effect of manipulation or vision for the suprapostural task (tube motion). However, follow-up to interaction effects indicates that roll pathlength, range and root means square of tube motion all decreased (improvement) following lower extremity manipulation with eyes open. Regarding the postural task, there was a main effect of manipulation on mediolateral center of pressure such that pathlength reduced with both upper and lower extremity manipulation with larger decreases in pathlength values following upper extremity manipulation. CONCLUSION Our findings show that manipulation of the extremities enhanced stability (e.g. tube stabilization and standing balance) on performance of a dual task. This furthers the argument that site-specific manipulations influence context specific motor behavior/coordination. However, as this study focused only on the immediate effects of extremity manipulation, caution is urged in generalizing these results to longer time frames until more work has been done examining the length of time these effects last. TRIAL REGISTRATION Clinicaltrials.gov , NCT03877367 , Registered 15 March 2019. Data collection took place July 2019.
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Affiliation(s)
- Christopher A Malaya
- Center for Neuromotor and Biomechanics Research, University of Houston, Houston, TX, USA. .,Research Center, Parker University, Dallas, TX, USA.
| | - Joshua Haworth
- Department of Human Movement Science, Oakland University, Rochester, MI, USA
| | | | - Dean L Smith
- Department of Kinesiology and Health, Miami University, Oxford, Ohio, USA.,Essence of Wellness Chiropractic Center, Eaton, OH, USA
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Chronic Neck Pain Affects Shoulder Muscle Activity and Postural Control During Functional Reach. J Med Biol Eng 2021. [DOI: 10.1007/s40846-020-00591-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Multimodal control of neck muscles for vestibular mediated head oscillation damping during walking: a pilot study. Eur Arch Otorhinolaryngol 2020; 278:3801-3811. [PMID: 33320296 PMCID: PMC8382622 DOI: 10.1007/s00405-020-06488-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Accepted: 11/10/2020] [Indexed: 12/20/2022]
Abstract
Purpose It is still in question whether head oscillation damping during walking forms a part of the vestibular function. The anatomical pathway from the vestibular system to the neck muscles via the medial vestibulospinal tract (MVST) is well known but there is a lack of knowledge of the exact influence and modulation of each other in daily life activities. Methods (I) We fixed a head–neck unit of a human cadaver specimen in a steal frame to determine the required pitch-torque for a horizontal head position. The mean value of the acquired pitch-torque was 0.54 Nm. (II) On a motorized treadmill we acquired kinematic data of the head, the sternum and both feet by wireless 3D IMUs for seven asymptomatic volunteers. Subsequently three randomized task conditions were performed. Condition 1 was walking without any irritation. Condition 2 imitated a sacculus irritation using a standardized cVEMP signal. The third condition used an electric neck muscle-irritation (TENS). The data were analyzed by the simulation environment software OpenSim 4.0. Results 8 neck muscle pairs were identified. By performing three different conditions we observed some highly significant deviations of the neck muscle peak torques. Analysing Euler angles, we found during walking a LARP and RALP head pendulum, which also was strongly perturbated. Conclusion Particularly the pitch-down head oscillation damping is the most challenging one for neck muscles, especially under biomechanical concerns. Mainly via MVST motor activity of neck muscles might be modulated by vestibular motor signals. Two simultaneous proprioceptor effects might optimize head oscillation damping. One might be a proprioceptive feedback loop to the vestibular nucleus. Another might trigger the cervicocollic reflex (CCR).
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Turkmen C, Kose N, Bilgin S, Cetin H, Dulger E, Altin B, Aksoy S. Effects of local vibration and cervical stabilization exercises on balance, joint position sense, and isometric muscle performance in young adults: A randomized controlled study. ISOKINET EXERC SCI 2020. [DOI: 10.3233/ies-193243] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
BACKGROUND: Cervical stabilization exercises and local vibration may improve proprioception and balance and prevent musculoskeletal problems. OBJECTIVE: To compare the effects of local vibration and cervical stabilization exercises on balance, cervical joint position sense, and muscle performance in healthy participants. METHODS: Forty-eight healthy male participants without neck pain were included. The participants were randomly divided into three groups: a home exercise program lasting eight weeks to the cervical stabilization group; 60 s of vibration to the neck muscles of the local vibration group and a control group. Balance, joint position sense, and muscle performance were evaluated twice in all subjects, before and after the intervention. RESULTS: Joint position sense error values were decreased in both the local vibration and cervical stabilization groups. Balance was improved (p< 0.001) in the local vibration group while improvement in muscle performance parameters was only seen in the cervical stabilization group (p< 0.05). CONCLUSIONS: The methods used in the present study may be used for improving the proprioceptive and vestibular components of balance in individuals with musculoskeletal problems such as cervical disc herniation, cervical spondylosis, or neck pain. However, given the limitations, much more research is needed to firmly establish these recommendations.
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Affiliation(s)
- Ceyhun Turkmen
- Neurosurgery Rehabilitation Unit, Faculty of Physical Therapy and Rehabilitation, Hacettepe University, Ankara, Turkey
| | - Nezire Kose
- Neurosurgery Rehabilitation Unit, Faculty of Physical Therapy and Rehabilitation, Hacettepe University, Ankara, Turkey
| | - Sevil Bilgin
- Neurosurgery Rehabilitation Unit, Faculty of Physical Therapy and Rehabilitation, Hacettepe University, Ankara, Turkey
| | - Hatice Cetin
- Neurosurgery Rehabilitation Unit, Faculty of Physical Therapy and Rehabilitation, Hacettepe University, Ankara, Turkey
| | - Esra Dulger
- Neurosurgery Rehabilitation Unit, Faculty of Physical Therapy and Rehabilitation, Hacettepe University, Ankara, Turkey
| | - Busra Altin
- Department of Audiology, Faculty of Health Sciences, Hacettepe University, Ankara, Turkey
| | - Songul Aksoy
- Department of Audiology, Faculty of Health Sciences, Hacettepe University, Ankara, Turkey
- Dizziness and Balance Disorders Research and Application Center, Hacettepe University, Ankara, Turkey
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Obrero-Gaitán E, Molina F, Del-Pino-Casado R, Ibáñez-Vera AJ, Rodríguez-Almagro D, Lomas-Vega R. Visual Verticality Perception in Spinal Diseases: A Systematic Review and Meta-Analysis. J Clin Med 2020; 9:E1725. [PMID: 32503240 PMCID: PMC7356295 DOI: 10.3390/jcm9061725] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 05/27/2020] [Accepted: 05/28/2020] [Indexed: 12/26/2022] Open
Abstract
Patients diagnosed with traumatic or non-traumatic spinal pain and idiopathic scoliosis frequently suffer from imbalance. The evaluation of the perception of verticality by means of visual tests emerges as a quick and easy tool for clinical management of the balance disorders. Several studies have assessed the visual perception of verticality in spinal diseases obtaining controversial results. The aim of our study is to analyze the perception of visual verticality in subjects with several spinal diseases in comparison with healthy subjects. A meta-analysis was carried out. PubMed MEDLINE, Scopus, WoS, CINAHL, and SciELO databases were searched until January 2020. The standardized mean difference (SMD) was calculated to analyze differences between patients and healthy controls. Fifteen studies with a total of 2052 patients were included. In comparison with healthy subjects, a misperception of verticality was found in patients with spinal pain when the perception of the verticality was assessed with the rod and frame test (SMD = 0.339; 95% confidence interval (CI) = 0.181, 0.497; p < 0.001). It seems that the perception of visual verticality is not altered in patients with idiopathic scoliosis (p = 0.294). The present meta-analysis shows a misperception of visual verticality only in patients with spinal pain.
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Affiliation(s)
- Esteban Obrero-Gaitán
- Department of Health Sciences, University of Jaén, Paraje Las Lagunillas s/n, 23071 Jaén, Spain; (E.O.-G.); (A.J.I.-V.); (D.R.-A.); (R.L.-V.)
| | - Francisco Molina
- Department of Health Sciences, University of Jaén, Paraje Las Lagunillas s/n, 23071 Jaén, Spain; (E.O.-G.); (A.J.I.-V.); (D.R.-A.); (R.L.-V.)
| | - Rafael Del-Pino-Casado
- Department of Nursing, University of Jaén, Paraje Las Lagunillas s/n, 23071 Jaén, Spain;
| | - Alfonso Javier Ibáñez-Vera
- Department of Health Sciences, University of Jaén, Paraje Las Lagunillas s/n, 23071 Jaén, Spain; (E.O.-G.); (A.J.I.-V.); (D.R.-A.); (R.L.-V.)
| | - Daniel Rodríguez-Almagro
- Department of Health Sciences, University of Jaén, Paraje Las Lagunillas s/n, 23071 Jaén, Spain; (E.O.-G.); (A.J.I.-V.); (D.R.-A.); (R.L.-V.)
| | - Rafael Lomas-Vega
- Department of Health Sciences, University of Jaén, Paraje Las Lagunillas s/n, 23071 Jaén, Spain; (E.O.-G.); (A.J.I.-V.); (D.R.-A.); (R.L.-V.)
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Benallegue M, Laumond JP, Berthoz A. On the mechanical contribution of head stabilization to passive dynamics of anthropometric walkers. Int J Rob Res 2019. [DOI: 10.1177/0278364919894387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
During the steady gait, humans stabilize their head around the vertical orientation. Although there are sensori-cognitive explanations for this phenomenon, its mechanical effect on the body dynamics remains unexplored. In this study, we take profit from the similarities that human steady gait shares with the locomotion of passive-dynamics robots. We introduce a simplified anthropometric 2D model to reproduce a broad walking dynamics. In a previous study, we showed heuristically that the presence of a stabilized head–neck system has a significant influence on the dynamics of walking. This article gives new insights that lead to understanding this mechanical effect. In particular, we introduce an original cart upper-body model that allows to better understand the mechanical interest of head stabilization when walking, and we study how this effect is sensitive to the choice of control parameters.
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Affiliation(s)
- Mehdi Benallegue
- National Institute of Advanced Industrial Science and Technology, Japan
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Layne CS, Malaya CA, Levine JT. The effects of muscle vibration on gait control: a review. Somatosens Mot Res 2019; 36:212-222. [PMID: 31416377 DOI: 10.1080/08990220.2019.1652585] [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] [Indexed: 12/13/2022]
Abstract
Background: The purpose of the review is to summarize the literature surrounding the use of muscle vibration as it relates to modifying human gait. Methods: After a brief introduction concerning historical uses and early research identifying the effect of vibration on muscle activation, we reviewed 32 articles that used muscle vibration during walking. The review is structured to address the literature within four broad categories: the effect of vibration to 'trigger' gait-like lower limb motions, the effect of vibration on gait control of healthy individuals and individuals with clinical conditions in which gait disorders are a prominent feature, and the effect of vibration training protocols on gait. Results: The acute effects of vibration during gait involving healthy participants is varied. Some authors reported differences in segmental kinematic and spatiotemporal measures while other authors reported no differences in these outcome measures. The literature involving participants with clinical conditions revealed that vibration consistently had a significant impact on gait, suggesting vibration may be an effective rehabilitation tool. All of the studies that used vibration therapy over time reported significant improvement in gait performance. Conclusions: This review highlights the difficulties in drawing definitive conclusions as to the impact of vibration on gait control, partly because of differences in walking protocols, site of vibration application, and outcome measures used across different investigative teams. It is suggested that the development of common investigative methodologies and outcome measures would accelerate the identification of techniques that may provide optimal rehabilitation protocols for individuals experiencing disordered gait control.
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Affiliation(s)
- Charles S Layne
- Center for Neuromotor and Biomechanics Research, Department of Health and Human Performance, University of Houston , Houston , TX , USA
| | - Christopher A Malaya
- Center for Neuromotor and Biomechanics Research, Department of Health and Human Performance, University of Houston , Houston , TX , USA
| | - Jackson T Levine
- Department of Biomedical Engineering, Tulane University , New Orleans , LA , USA
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I R, M R, S E, S K, A RZ. A Novel Virtual Reality Technique (Cervigame®) Compared to Conventional Proprioceptive Training to Treat Neck Pain: A Randomized Controlled Trial. J Biomed Phys Eng 2019; 9:355-366. [PMID: 31341881 PMCID: PMC6613157 DOI: 10.31661/jbpe.v0i0.556] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Accepted: 05/28/2018] [Indexed: 11/16/2022]
Abstract
Background Despite the potential benefits of virtual reality technology in physical rehabilitation, only a few studies have evaluated the efficacy of this type of treatment in patients with neck pain. Objective The aim of this study was to compare the effects of virtual reality training (VRT) versus conventional proprioceptive training (CPT) in patients with neck pain. Materials and Methods Forty four participants with nonspecific chronic neck pain were randomly assigned to VRT or CPT in this assessor-blinded clinical trial. A novel videogame called Cervigame® was designed for VRT. It comprises of 50 stages divided into unidirectional and two-directional stages ordered from easy to hard. CPT consisted of eye-follow, gaze stability, eye-head coordination and position and movement sense training. Both groups completed 8 training sessions over 4 weeks. Visual analogue scale score, neck disability index and Y-balance test results were recorded at baseline, immediately after and 5 weeks post-intervention. Mixed repeated measure ANOVA was used to analyze differences between mean values for each variable at an alpha level of 0.05. Results There were significant improvements in all variables in both groups immediately after and 5 weeks after the intervention. Greater improvements were observed in the visual analogue scale and neck disability index scores in VRT group, and the results for all directions in Y-balance test were similar in both groups. No side effects were reported. Conclusion Improvements in neck pain and disability were greater in VRT than CPT group. Cervigame® is a potentially practical tool for rehabilitation in patients with neck pain.
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Affiliation(s)
- Rezaei I
- Department of Physical Therapy, School of Rehabilitation Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
- Student Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Razeghi M
- Department of Physical Therapy, School of Rehabilitation Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
- Rehabilitation Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Ebrahimi S
- Department of Physical Therapy, School of Rehabilitation Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
- Student Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Kayedi S
- Department of Physical Therapy, School of Rehabilitation Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
- Student Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Rezaeian Zadeh A
- Department of Epidemiology, School of Health, Shiraz University of Medical Sciences, Shiraz, Iran
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Godi M, Giardini M, Schieppati M. Walking Along Curved Trajectories. Changes With Age and Parkinson's Disease. Hints to Rehabilitation. Front Neurol 2019; 10:532. [PMID: 31178816 PMCID: PMC6543918 DOI: 10.3389/fneur.2019.00532] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Accepted: 05/03/2019] [Indexed: 01/11/2023] Open
Abstract
In this review, we briefly recall the fundamental processes allowing us to change locomotion trajectory and keep walking along a curved path and provide a review of contemporary literature on turning in older adults and people with Parkinson's Disease (PD). The first part briefly summarizes the way the body exploits the physical laws to produce a curved walking trajectory. Then, the changes in muscle and brain activation underpinning this task, and the promoting role of proprioception, are briefly considered. Another section is devoted to the gait changes occurring in curved walking and steering with aging. Further, freezing during turning and rehabilitation of curved walking in patients with PD is mentioned in the last part. Obviously, as the research on body steering while walking or turning has boomed in the last 10 years, the relevant critical issues have been tackled and ways to improve this locomotor task proposed. Rationale and evidences for successful training procedures are available, to potentially reduce the risk of falling in both older adults and patients with PD. A better understanding of the pathophysiology of steering, of the subtle but vital interaction between posture, balance, and progression along non-linear trajectories, and of the residual motor learning capacities in these cohorts may provide solid bases for new rehabilitative approaches.
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Affiliation(s)
- Marco Godi
- Division of Physical Medicine and Rehabilitation, ICS Maugeri SPA SB, Pavia, Italy
| | - Marica Giardini
- Division of Physical Medicine and Rehabilitation, ICS Maugeri SPA SB, Pavia, Italy
| | - Marco Schieppati
- Department of Exercise and Sport Science, International University of Health, Exercise and Sports, LUNEX University, Differdange, Luxembourg
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Desrochers P, Brunfeldt A, Sidiropoulos C, Kagerer F. Sensorimotor Control in Dystonia. Brain Sci 2019; 9:brainsci9040079. [PMID: 30979073 PMCID: PMC6523253 DOI: 10.3390/brainsci9040079] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Revised: 04/03/2019] [Accepted: 04/08/2019] [Indexed: 12/24/2022] Open
Abstract
This is an overview of the sensorimotor impairments in dystonia, a syndrome characterized by sustained or intermittent aberrant movement patterns leading to abnormal movements and/or postures with or without a tremulous component. Dystonia can affect the entire body or specific body regions and results from a plethora of etiologies, including subtle changes in gray and white matter in several brain regions. Research over the last 25 years addressing topics of sensorimotor control has shown functional sensorimotor impairments related to sensorimotor integration, timing, oculomotor and head control, as well as upper and lower limb control. In the context of efforts to update the classification of dystonia, sensorimotor research is highly relevant for a better understanding of the underlying pathology, and potential mechanisms contributing to global and regional dysfunction within the central nervous system. This overview of relevant research regarding sensorimotor control in humans with idiopathic dystonia attempts to frame the dysfunction with respect to what is known regarding motor control in patients and healthy individuals. We also highlight promising avenues for the future study of neuromotor control that may help to further elucidate dystonia etiology, pathology, and functional characteristics.
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Affiliation(s)
- Phillip Desrochers
- Dept. of Kinesiology, Michigan State University, East Lansing, MI 48824, USA.
| | - Alexander Brunfeldt
- Dept. of Kinesiology, Michigan State University, East Lansing, MI 48824, USA.
| | - Christos Sidiropoulos
- Dept. of Neurology and Ophthalmology, Michigan State University, East Lansing, MI 48824, USA.
| | - Florian Kagerer
- Dept. of Kinesiology, Michigan State University, East Lansing, MI 48824, USA.
- Neuroscience Program, Michigan State University, East Lansing, MI 48824, USA.
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Podokinetic After-Rotation Is Transiently Enhanced or Reversed by Unilateral Axial Muscle Proprioceptive Stimulation. Neural Plast 2019; 2019:7129279. [PMID: 30984256 PMCID: PMC6432728 DOI: 10.1155/2019/7129279] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Accepted: 12/11/2018] [Indexed: 12/25/2022] Open
Abstract
Unilateral axial muscle vibration, eliciting a proprioceptive volley, is known to incite steering behavior. Whole-body rotation while stepping in place also occurs as an after-effect of stepping on a circular treadmill (podokinetic after-rotation, PKAR). Here, we tested the hypothesis that PKAR is modulated by axial muscle vibration. If both phenomena operate through a common pathway, enhancement or cancellation of body rotation would occur depending on the stimulated side when vibration is administered concurrently with PKAR. Seventeen subjects participated in the study. In one session, subjects stepped in place eyes open on the center of a platform that rotated counterclockwise 60°/s for 10 min. When the platform stopped, subjects continued stepping in place blindfolded. In other session, a vibratory stimulus (100 Hz, 2 min) was administered to right or left paravertebral muscles at lumbar level at two intervals during the PKAR. We computed angular body velocity and foot step angles from markers fixed to shoulders and feet. During PKAR, all subjects rotated clockwise. Decreased angular velocity was induced by right vibration. Conversely, when vibration was administered to the left, clockwise rotation velocity increased. The combined effect on body rotation depended on the time at which vibration was administered during PKAR. Under all conditions, foot step angle was coherent with shoulder angular velocity. PKAR results from continuous asymmetric input from the muscles producing leg rotation, while axial muscle vibration elicits a proprioceptive asymmetric input. Both conditioning procedures appear to produce their effects through a common mechanism. We suggest that both stimulations would affect our straight ahead by combining their effects in an algebraic mode.
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Motor impairment in patients with chronic neck pain: does the traumatic event play a significant role? A case-control study. Spine J 2018; 18:1406-1416. [PMID: 29360578 DOI: 10.1016/j.spinee.2018.01.009] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2016] [Revised: 08/25/2017] [Accepted: 01/09/2018] [Indexed: 02/03/2023]
Abstract
BACKGROUND CONTEXT Motor impairment is a key sign in patients with traumatic (whiplash-associated disorder [WAD]) and non-traumatic (idiopathic neck pain [INP]) neck pain. PURPOSE This study aimed to analyze differences in motor impairment between two patient groups and to assess the association between motor performance and self-reported symptoms. STUDY DESIGN This is a case-control study. PATIENT SAMPLE A total of 38 patients with chronic INP, 35 patients with chronic WAD, and 30 healthy pain-free controls were included in the study. OUTCOME MEASURES Outcome measures used in this study were mobility (°), strength (N), repositioning accuracy (°), endurance (seconds), sway velocity (cm/s), sway area (cm2), and neuromuscular control. METHODS Group differences of motor impairment, together with questionnaires to evaluate pain intensity, fear avoidance, pain catastrophizing, symptoms of central sensitization, and disability, were analyzed with analysis of covariance, including age as a covariate. RESULTS Motor impairment was observed in both patient groups with a higher degree in patients with chronic WAD. These impairments were moderately linked to self-reported disability and were in most cases associated with pain, fear avoidance, and symptoms of central sensitization (|ρ| ranging from 0.28 to 0.59). CONCLUSIONS Motor impairment should be addressed when treating both groups of patients, keeping in mind the association with self-reported pain and disability, fear-avoidance, and central sensitization.
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Wannaprom N, Treleaven J, Jull G, Uthaikhup S. Neck muscle vibration produces diverse responses in balance and gait speed between individuals with and without neck pain. Musculoskelet Sci Pract 2018; 35:25-29. [PMID: 29427867 DOI: 10.1016/j.msksp.2018.02.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Accepted: 02/02/2018] [Indexed: 11/29/2022]
Abstract
BACKGROUND Neck muscle vibration can influence cervical proprioception and sensorimotor function. It is hypothesized to affect motor performance differently in persons with and without neck pain. STUDY DESIGN Cross-sectional study. OBJECTIVE To clarify the extent to which vibration-induced motor responses of neck muscles affect static standing balance and gait speed in persons with and without neck pain. METHODS Thirty participants with chronic neck pain and 30 healthy controls were recruited. Balance and gait were measured before and after 30 s of suboccipital neck muscle vibration. Balance was measured in a confortable stance with eyes closed using a swaymeter and gait using the timed 10 m walk test. RESULTS At baseline, neck pain participants had greater postural sway, particularly in the anterior-posterior direction and slower gait speed than healthy controls (p < 0.001). Immediately after vibration, neck pain participants displayed decreased postural sway, and increased gait speed (p < 0.001). Healthy controls had increased postural sway and decreased gait speed (p < 0.001). CONCLUSION Neck muscle vibration improved standing balance and gait speed in participants with neck pain but reduced performance in healthy controls. The study supports the importance of cervical proprioceptive information in postural control. Use of vibration could be considered neck pain patients' rehabilitation.
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Affiliation(s)
- Nipaporn Wannaprom
- Department of Physical Therapy, Faculty of Associated Medical Sciences, Chiang Mai University, Thailand
| | - Julia Treleaven
- Division of Physiotherapy, School of Health and Rehabilitation Sciences, The University of Queensland, St Lucia, Brisbane, Australia
| | - Gwendolen Jull
- Division of Physiotherapy, School of Health and Rehabilitation Sciences, The University of Queensland, St Lucia, Brisbane, Australia
| | - Sureeporn Uthaikhup
- Department of Physical Therapy, Faculty of Associated Medical Sciences, Chiang Mai University, Thailand.
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Mousavi-Khatir R, Talebian S, Toosizadeh N, Olyaei GR, Maroufi N. Disturbance of neck proprioception and feed-forward motor control following static neck flexion in healthy young adults. J Electromyogr Kinesiol 2018; 41:160-167. [PMID: 29935422 DOI: 10.1016/j.jelekin.2018.04.013] [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: 01/23/2018] [Revised: 04/22/2018] [Accepted: 04/23/2018] [Indexed: 11/16/2022] Open
Abstract
The highly complex proprioceptive system provides neuromuscular control of the mobile cervical spine. Static neck flexion can induce the elongation of posterior tissues and altered afferent input from the mechanoreceptors. The purpose of this study was to examine the effect of prolonged static neck flexion on neck proprioception and anticipatory postural adjustments. Thirty-eight healthy participants (20 females and 18 males) between the ages of 20-35 years with no history of neck, low back, and shoulder pain enrolled in this study. Neck proprioception and anticipatory muscle activity were tested before and after 10-min static neck flexion. For assessment of neck proprioception, each participant was asked to perform 10 trials of the cervicocephalic relocation test to the neutral head position after active neck rotation to the left and right sides. Anticipatory postural adjustments were evaluated during a rapid arm flexion test. Following the flexion, the absolute and variable errors in head repositioning significantly increased (p < 0.05). The results also showed that there was a significant delay in the onset of myoelectric activity of the cervical erector spinae muscles after flexion (p = 0.001). The results of this study suggested that a 10-min static flexion can lead to changes in the neck proprioception and feed-forward control due to mechanical and neuromuscular changes in the viscoelastic cervical spine structures. These changes in sensory-motor control may be a risk factor for neck pain and injury.
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Affiliation(s)
- Roghayeh Mousavi-Khatir
- Mobility Impairment Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran; Department of Physical Therapy, School of Rehabilitation, Babol University of Medical Sciences, Babol, Iran.
| | - Saeed Talebian
- Department of Physical Therapy, School of Rehabilitation, Tehran University of Medical Sciences: Pich Shemiran, Tehran, Iran.
| | - Nima Toosizadeh
- Arizona Center on Aging, Department of Medicine, University of Arizona, Tucson, AZ, United States; Department of Biomedical Engineering, University of Arizona, Tucson, AZ, United States.
| | - Gholam Reaza Olyaei
- Department of Physical Therapy, School of Rehabilitation, Tehran University of Medical Sciences: Pich Shemiran, Tehran, Iran.
| | - Nader Maroufi
- Department of Physical Therapy, School of Rehabilitation, Iran University of Medical Sciences, Tehran, Iran
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Beinert K, Englert V, Taube W. After-effects of neck muscle vibration on sensorimotor function and pain in neck pain patients and healthy controls – a case-control study. Disabil Rehabil 2018; 41:1906-1913. [DOI: 10.1080/09638288.2018.1451925] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Konstantin Beinert
- Hochschule für Gesundheitsorientierte Wissenschaften Rhein-Neckar, University of Applied Science, Mannheim, Germany
- Department of Medicine, Movement and Sports Science, University of Fribourg, Fribourg, Switzerland
| | - Volker Englert
- Hochschule für Gesundheitsorientierte Wissenschaften Rhein-Neckar, University of Applied Science, Mannheim, Germany
| | - Wolfgang Taube
- Department of Medicine, Movement and Sports Science, University of Fribourg, Fribourg, Switzerland
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An Overview of the Physiology and Pathophysiology of Postural Control. BIOSYSTEMS & BIOROBOTICS 2018. [DOI: 10.1007/978-3-319-72736-3_1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Abstract
The paper reports on two results issued from a multidisciplinary research action exploring the motor synergies of anthropomorphic walking. By combining the biomechanical, neurophysiology, and robotics perspectives, it is intended to better understand human locomotion with the ambition to better design bipedal robot architectures. The motivation of the research starts from the simple observation that humans may stumble when following a simple reflex-based locomotion on uneven terrains. The rationale combines two well established results in robotics and neuroscience, respectively: passive robot walkers, which are very efficient in terms of energy consumption, can be modeled by a simple rotating rimless wheel; humans and animals stabilize their head when moving. The seminal hypothesis is then to consider a wheel equipped with a stabilized mass on top of it as a plausible model of bipedal walking. The two results presented in the paper support the hypothesis. From a motion capture data basis of twelve human walkers, we show that the motions of the feet are organized around a geometric center, which is the center of mass, and is surprisingly not at the hip. After introducing a ground texture model that allows us to quantify the stability performance of walker control schemes, we show how compass-like passive walkers are better controlled when equipped with a stabilized 2-degree-of-freedom moving mass on top of them. The center of mass and head then play complementary roles that define what we call the Yoyo-Man. Beyond the two results presented in the paper, the Yoyo-Man model opens new perspectives to explore the computational foundations of anthropomorphic walking.
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Affiliation(s)
| | - Mehdi Benallegue
- National Institute of Advances Industrial Science and Technology (AIST), Tsukuba, Japan
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De Pauw J, Mercelis R, Hallemans A, Michiels S, Truijen S, Cras P, De Hertogh W. Cervical sensorimotor control in idiopathic cervical dystonia: A cross-sectional study. Brain Behav 2017; 7:e00735. [PMID: 28948067 PMCID: PMC5607536 DOI: 10.1002/brb3.735] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/24/2017] [Revised: 04/19/2017] [Accepted: 04/19/2017] [Indexed: 11/17/2022] Open
Abstract
OBJECTIVES Patients with idiopathic adult-onset cervical dystonia (CD) experience an abnormal head posture and involuntary muscle contractions. Although the exact areas affected in the central nervous system remain uncertain, impaired functions in systems stabilizing the head and neck are apparent such as the somatosensory and sensorimotor integration systems. The aim of the study is to investigate cervical sensorimotor control dysfunction in patients with CD. MATERIAL AND METHODS Cervical sensorimotor control was assessed by a head repositioning task in 24 patients with CD and 70 asymptomatic controls. Blindfolded participants were asked to reposition their head to a previously memorized neutral head position (NHP) following an active movement (flexion, extension, left, and right rotation). The repositioning error (joint position error, JPE) was registered via 3D motion analysis with an eight-camera infrared system (VICON ® T10). Disease-specific characteristics of all patients were obtained via the Tsui scale, Cervical Dystonia Impact Profile (CDIP-58), and Toronto Western Spasmodic Rating Scale. RESULTS Patients with CD showed larger JPE than controls (mean difference of 1.5°, p < .006), and systematically 'overshoot', i.e. surpassed the NHP, whereas control subjects 'undershoot', i.e. fall behind the NHP. The JPE did not correlate with disease-specific characteristics. CONCLUSIONS Cervical sensorimotor control is impaired in patients with CD. As cervical sensorimotor control can be trained, this might be a potential treatment option for therapy, adjuvant to botulinum toxin injections.
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Affiliation(s)
- Joke De Pauw
- Department of Physical Therapy and Rehabilitation SciencesUniversity of AntwerpWilrijkBelgium
| | - Rudy Mercelis
- Department of NeurologyAntwerp University HospitalWilrijkBelgium
- Faculty of Medicine and Health SciencesBorn Bunge InstituteUniversity of AntwerpWilrijkBelgium
| | - Ann Hallemans
- Department of Physical Therapy and Rehabilitation SciencesUniversity of AntwerpWilrijkBelgium
- Multidisciplinary Motor Centre Antwerp (MOCEAN)WilrijkBelgium
| | - Sarah Michiels
- Department of Physical Therapy and Rehabilitation SciencesUniversity of AntwerpWilrijkBelgium
| | - Steven Truijen
- Department of Physical Therapy and Rehabilitation SciencesUniversity of AntwerpWilrijkBelgium
| | - Patrick Cras
- Department of NeurologyAntwerp University HospitalWilrijkBelgium
- Faculty of Medicine and Health SciencesBorn Bunge InstituteUniversity of AntwerpWilrijkBelgium
| | - Willem De Hertogh
- Department of Physical Therapy and Rehabilitation SciencesUniversity of AntwerpWilrijkBelgium
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Malmström EM, Fransson PA, Jaxmar Bruinen T, Facic S, Tjernström F. Disturbed cervical proprioception affects perception of spatial orientation while in motion. Exp Brain Res 2017. [PMID: 28623390 PMCID: PMC5550524 DOI: 10.1007/s00221-017-4993-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The proprioceptive, visual and vestibular sensory systems interact to maintain dynamic stability during movement. The relative importance and interplay between these sensory systems is still not fully understood. Increased knowledge about spatial perception and postural orientation would provide better understanding of balance disorders, and their rehabilitation. Displacement of the body in space was recorded in 16 healthy subjects performing a sequence of stepping-in-place tests without any visual or auditory cues. Spatial displacement and orientation in space were determined by calculating two parameters, “Moved distance (sagittal + lateral displacement)” and “Rotation”. During the stepping-in-place tests vibration were applied in a randomized order on four different cervical muscles, and the effects were compared between muscles and to a non-vibration baseline condition. During the tests a forward displacement (“Moved distance”) was found to be the normal behavior, with various degrees of longitudinal rotation (“Rotation”). The moved distance was significantly larger when the vibration was applied on the dorsal muscles (916 mm) relative to on ventral muscles (715 mm) (p = 0.003) and the rate of displacement was significantly larger for dorsal muscles (36.5 mm/s) relative to ventral (28.7 mm/s) vs (p = 0.002). When vibration was applied on the left-sided muscles, 16° rotation to the right was induced (p = 0.005), whereas no significant rotation direction was induced with right-sided vibration (3°). The rate of rotation was significantly larger for vibration applied on ventral muscles (0.44°/s) relative to on dorsal (0.33°/s) (p = 0.019). The results highlight the influence of cervical proprioception on the internal spatial orientation, and subsequent for postural control.
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Affiliation(s)
- Eva-Maj Malmström
- Department of Pain Rehabilitation, Skåne University Hospital, Lund, Sweden. .,Department of Otorhinolaryngology, Clinical Sciences, Lund University, Lund, Sweden.
| | - Per-Anders Fransson
- Department of Otorhinolaryngology, Clinical Sciences, Lund University, Lund, Sweden
| | | | - Semir Facic
- Medpro Clinic Rehab AB, Torpavägen 23, Vänersborg, Sweden
| | - Fredrik Tjernström
- Department of Otorhinolaryngology, Clinical Sciences, Lund University, Lund, Sweden
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Balconi M, Crivelli D, Bove M. ‘Eppur si move’: The Association Between Electrophysiological and Psychophysical Signatures of Perceived Movement Illusions. J Mot Behav 2017; 50:37-50. [DOI: 10.1080/00222895.2016.1271305] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Michela Balconi
- Research Unit in Affective and Social Neuroscience, Catholic University of the Sacred Heart, Milan, Italy
- Department of Psychology, Catholic University of the Sacred Heart, Milan, Italy
| | - Davide Crivelli
- Research Unit in Affective and Social Neuroscience, Catholic University of the Sacred Heart, Milan, Italy
- Department of Psychology, Catholic University of the Sacred Heart, Milan, Italy
| | - Marco Bove
- Department of Experimental Medicine, University of Genoa, Italy
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Xu I, Laurendeau S, Teasdale N, Simoneau M. Change in the natural head-neck orientation momentarily altered sensorimotor control during sensory transition. Gait Posture 2017; 53:80-85. [PMID: 28119230 DOI: 10.1016/j.gaitpost.2017.01.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2016] [Revised: 01/09/2017] [Accepted: 01/10/2017] [Indexed: 02/02/2023]
Abstract
Achilles tendon vibration generates proprioceptive information that is incongruent with the actual body position; it alters the perception of body orientation leading to a vibration-induced postural response. When a person is standing freely, vibration of the Achilles tendon shifts the internal representation of the verticality backward thus the vibration-induced postural response realigned the whole body orientation with the shifted subjective vertical. Because utricular otoliths information participates in the creation of the internal representation of the verticality, changing the natural orientation of the head-neck system during Achilles tendon vibration could alter the internal representation of the earth vertical to a greater extent. Consequently, it was hypothesized that compared to neutral head-neck orientation, alteration in the head-neck orientation should impair balance control immediately after Achilles tendon vibration onset or offset (i.e., sensory transition) as accurate perception of the earth vertical is required. Results revealed that balance control impairment was observed only immediately following Achilles tendon vibration offset; both groups with the head-neck either extended or flexed showed larger body sway (i.e., larger root mean square scalar distance between the center of pressure and center of gravity) compared to the group with the neutral head-neck orientation. The fact that balance control was uninfluenced by head-neck orientation immediately following vibration onset suggests the error signal needs to accumulate to a certain threshold before the internal representation of the earth vertical becomes incorrect.
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Affiliation(s)
- Isabelle Xu
- Faculté de médecine, Université Laval, Canada
| | - Simon Laurendeau
- Faculté de médecine, Département de kinésiologie, Université Laval, Canada; Centre de recherche du CHU de Québec, Québec, Québec, Canada
| | - Normand Teasdale
- Faculté de médecine, Département de kinésiologie, Université Laval, Canada; Centre de recherche du CHU de Québec, Québec, Québec, Canada
| | - Martin Simoneau
- Faculté de médecine, Département de kinésiologie, Université Laval, Canada; Centre de recherche du CHU de Québec, Québec, Québec, Canada.
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Mastoid vibration affects dynamic postural control during gait in healthy older adults. Sci Rep 2017; 7:41547. [PMID: 28128341 PMCID: PMC5269701 DOI: 10.1038/srep41547] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Accepted: 12/22/2016] [Indexed: 01/14/2023] Open
Abstract
Vestibular disorders are difficult to diagnose early due to the lack of a systematic assessment. Our previous work has developed a reliable experimental design and the result shows promising results that vestibular sensory input while walking could be affected through mastoid vibration (MV) and changes are in the direction of motion. In the present paper, we wanted to extend this work to older adults and investigate how manipulating sensory input through mastoid vibration (MV) could affect dynamic postural control during walking. Three levels of MV (none, unilateral, and bilateral) applied via vibrating elements placed on the mastoid processes were combined with the Locomotor Sensory Organization Test (LSOT) paradigm to challenge the visual and somatosensory systems. We hypothesized that the MV would affect sway variability during walking in older adults. Our results revealed that MV significantly not only increased the amount of sway variability but also decreased the temporal structure of sway variability only in anterior-posterior direction. Importantly, the bilateral MV stimulation generally produced larger effects than the unilateral. This is an important finding that confirmed our experimental design and the results produced could guide a more reliable screening of vestibular system deterioration.
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Dorn LJ, Lappat A, Neuhuber W, Scherer H, Olze H, Hölzl M. Tonic Investigation Concept of Cervico-vestibular Muscle Afferents. Int Arch Otorhinolaryngol 2017; 21:46-57. [PMID: 28050208 PMCID: PMC5205534 DOI: 10.1055/s-0036-1583759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Accepted: 02/24/2016] [Indexed: 12/02/2022] Open
Abstract
Introduction Interdisciplinary research has contributed greatly to an improved understanding of the vestibular system. To date, however, very little research has focused on the vestibular system's somatosensory afferents. To ensure the diagnostic quality of vestibular somatosensory afferent data, especially the extra cranial afferents, stimulation of the vestibular balance system has to be precluded. Objective Sophisticated movements require intra- and extra cranial vestibular receptors. The study's objective is to evaluate an investigation concept for cervico-vestibular afferents with respect to clinical feasibility. Methods A dedicated chair was constructed, permitting three-dimensional trunk excursions, during which the volunteer's head remains fixed. Whether or not a cervicotonic provocation nystagmus (c-PN) can be induced with static trunk excursion is to be evaluated and if this can be influenced by cervical monophasic transcutaneous electrical nerve stimulation (c-TENS) with a randomized test group. 3D-video-oculography (VOG) was used to record any change in cervico-ocular examination parameters. The occurring nystagmuses were evaluated visually due to the small caliber of nystagmus amplitudes in healthy volunteers. Results The results demonstrate: no influence of placebo-controlled c-TENS on the spontaneous nystagmus; a significant increase of the vertical nystagmus on the 3D-trunk-excursion chair in static trunk flexion with cervical provocation in all young healthy volunteers (n = 49); and a significant difference between vertical and horizontal nystagmuses during static trunk excursion after placebo-controlled c-TENS, except for the horizontal nystagmus during trunk torsion. Conclusion We hope this cervicotonic investigation concept on the 3D trunk-excursion chair will contribute to new diagnostic and therapeutic perspectives on cervical pathologies in vestibular head-to-trunk alignment.
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Affiliation(s)
| | - Annabelle Lappat
- Department of Otorhinolaryngology, Sankt Gertrauden Hospital, Berlin, Germany
| | - Winfried Neuhuber
- Institute of Anatomy, Universität Erlangen-Nürnberg, Erlangen-Nürnberg, Germany
| | - Hans Scherer
- Department of Otorhinolaryngology, Charité Universitätsmedizin, Berlin, Germany
| | - Heidi Olze
- Department of Otorhinolaryngology, Charité Universitätsmedizin, Berlin, Germany
| | - Matthias Hölzl
- Department of Otorhinolaryngology, Universitätsklinik Magdeburg, Magdeburg, Germany
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Stepping in Place While Voluntarily Turning Around Produces a Long-Lasting Posteffect Consisting in Inadvertent Turning While Stepping Eyes Closed. Neural Plast 2016; 2016:7123609. [PMID: 27635264 PMCID: PMC5011410 DOI: 10.1155/2016/7123609] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2016] [Revised: 06/20/2016] [Accepted: 07/03/2016] [Indexed: 11/17/2022] Open
Abstract
Training subjects to step in place on a rotating platform while maintaining a fixed body orientation in space produces a posteffect consisting in inadvertent turning around while stepping in place eyes closed (podokinetic after-rotation, PKAR). We tested the hypothesis that voluntary turning around while stepping in place also produces a posteffect similar to PKAR. Sixteen subjects performed 12 min of voluntary turning while stepping around their vertical axis eyes closed and 12 min of stepping in place eyes open on the center of a platform rotating at 60°/s (pretests). Then, subjects continued stepping in place eyes closed for at least 10 min (posteffect). We recorded the positions of markers fixed to head, shoulder, and feet. The posteffect of voluntary turning shared all features of PKAR. Time decay of angular velocity, stepping cadence, head acceleration, and ratio of angular velocity after to angular velocity before were similar between both protocols. Both postrotations took place inadvertently. The posteffects are possibly dependent on the repeated voluntary contraction of leg and foot intrarotating pelvic muscles that rotate the trunk over the stance foot, a synergy common to both protocols. We propose that stepping in place and voluntary turning can be a scheme ancillary to the rotating platform for training body segment coordination in patients with impairment of turning synergies of various origin.
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Mastoid Vibration Affects Dynamic Postural Control During Gait. Ann Biomed Eng 2016; 44:2774-84. [PMID: 26833038 DOI: 10.1007/s10439-016-1556-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2015] [Accepted: 01/27/2016] [Indexed: 02/03/2023]
Abstract
Our objective was to investigate how manipulating sensory input through mastoid vibration (MV) could affect dynamic postural control during walking, with and without simultaneous manipulation of the visual and the somatosensory systems. We used three levels of MV (none, unilateral, and bilateral) via vibrating elements placed on the mastoid processes. We combined this with the six conditions of the Locomotor Sensory Organization Test (LSOT) paradigm to challenge the visual and somatosensory systems. We hypothesized that MV would affect both amount and temporal structure measures of sway variability during walking and that, in combination with manipulations of the visual and the somatosensory inputs, MV would augment the effects previously observed. The results confirmed that MV produced a significant increase in the amount of sway variability in both anterior-posterior and medial-lateral directions. Significant changes in the temporal structure of sway variability were only observed in the anterior-posterior direction. Bilateral MV produced larger effects than unilateral stimulation. We concluded that sensory input while walking could be affected using MV. Combining MV with manipulations of visual and somatosensory input could allow us to better understand the contributions of the sensory systems during locomotion.
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Pettorossi VE, Panichi R, Botti FM, Biscarini A, Filippi GM, Schieppati M. Long-lasting effects of neck muscle vibration and contraction on self-motion perception of vestibular origin. Clin Neurophysiol 2015; 126:1886-900. [PMID: 25812729 DOI: 10.1016/j.clinph.2015.02.057] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2014] [Revised: 02/24/2015] [Accepted: 02/25/2015] [Indexed: 12/31/2022]
Abstract
OBJECTIVE To show that neck proprioceptive input can induce long-term effects on vestibular-dependent self-motion perception. METHODS Motion perception was assessed by measuring the subject's error in tracking in the dark the remembered position of a fixed target during whole-body yaw asymmetric rotation of a supporting platform, consisting in a fast rightward half-cycle and a slow leftward half-cycle returning the subject to the initial position. Neck muscles were relaxed or voluntarily contracted, and/or vibrated. Whole-body rotation was administered during or at various intervals after the vibration train. The tracking position error (TPE) at the end of the platform rotation was measured during and after the muscle conditioning maneuvers. RESULTS Neck input produced immediate and sustained changes in the vestibular perceptual response to whole-body rotation. Vibration of the left sterno-cleido-mastoideus (SCM) or right splenius capitis (SC) or isometric neck muscle effort to rotate the head to the right enhanced the TPE by decreasing the perception of the slow rotation. The reverse effect was observed by activating the contralateral muscle. The effects persisted after the end of SCM conditioning, and slowly vanished within several hours, as tested by late asymmetric rotations. The aftereffect increased in amplitude and persistence by extending the duration of the vibration train (from 1 to 10min), augmenting the vibration frequency (from 5 to 100Hz) or contracting the vibrated muscle. Symmetric yaw rotation elicited a negligible TPE, upon which neck muscle vibrations were ineffective. CONCLUSIONS Neck proprioceptive input induces enduring changes in vestibular-dependent self-motion perception, conditional on the vestibular stimulus feature, and on the side and the characteristics of vibration and status of vibrated muscles. This shows that our perception of whole-body yaw-rotation is not only dependent on accurate vestibular information, but is modulated by proprioceptive information related to previously experienced position of head with respect to trunk. SIGNIFICANCE Tonic proprioceptive inflow, as might occur as a consequence of enduring or permanent head postures, can induce adaptive plastic changes in vestibular-dependent motion sensitiveness. These changes might be counteracted by vibration of selected neck muscles.
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Affiliation(s)
| | - Roberto Panichi
- Department of Experimental Medicine, University of Perugia, Italy
| | | | - Andrea Biscarini
- Department of Experimental Medicine, University of Perugia, Italy
| | | | - Marco Schieppati
- Department of Public Health, Experimental and Forensic Medicine, University of Pavia, Italy; Centro Studi Attività Motorie, Fondazione Salvatore Maugeri (IRCCS), Pavia, Italy.
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Kim GM, Oh DW. Neck proprioceptive training for balance function in patients with chronic poststroke hemiparesis: a case series. J Phys Ther Sci 2014; 26:1657-9. [PMID: 25364136 PMCID: PMC4210421 DOI: 10.1589/jpts.26.1657] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2014] [Accepted: 04/10/2014] [Indexed: 11/24/2022] Open
Abstract
[Purpose] This study investigated the effects of neck proprioceptive training on the balance of patients with chronic poststroke hemiparesis. [Subjects] Three patients with chronic stroke were recruited for this study. [Methods] The subjects underwent neck proprioceptive training using the red light of a laser pointer (30 min daily, five times per week for 4 weeks). Outcome measures included the stability and weight distribution indices measured with a Tetrax system and Timed Up and Go (TUG) and proprioception tests. [Results] For all subjects, the stability and weight distribution indices increased by 1.87-9.66% in the eyes-open and eyes-closed conditions, and the TUG and proprioception test scores improved by 2.49-15.27%. [Conclusion] Neck proprioceptive training may be a good option for improving the balance function of patients with chronic poststroke hemiparesis.
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Affiliation(s)
- Gyoung-Mo Kim
- Department of Physical Therapy, Division of Health Science, Baekseok University, Republic of Korea
| | - Duck-Won Oh
- Department of Physical Therapy, College of Health Science, Cheongju University, Republic of Korea
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Pettorossi VE, Schieppati M. Neck proprioception shapes body orientation and perception of motion. Front Hum Neurosci 2014; 8:895. [PMID: 25414660 PMCID: PMC4220123 DOI: 10.3389/fnhum.2014.00895] [Citation(s) in RCA: 76] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2014] [Accepted: 10/20/2014] [Indexed: 12/30/2022] Open
Abstract
This review article deals with some effects of neck muscle proprioception on human balance, gait trajectory, subjective straight-ahead (SSA), and self-motion perception. These effects are easily observed during neck muscle vibration, a strong stimulus for the spindle primary afferent fibers. We first remind the early findings on human balance, gait trajectory, SSA, induced by limb, and neck muscle vibration. Then, more recent findings on self-motion perception of vestibular origin are described. The use of a vestibular asymmetric yaw-rotation stimulus for emphasizing the proprioceptive modulation of motion perception from the neck is mentioned. In addition, an attempt has been made to conjointly discuss the effects of unilateral neck proprioception on motion perception, SSA, and walking trajectory. Neck vibration also induces persistent aftereffects on the SSA and on self-motion perception of vestibular origin. These perceptive effects depend on intensity, duration, side of the conditioning vibratory stimulation, and on muscle status. These effects can be maintained for hours when prolonged high-frequency vibration is superimposed on muscle contraction. Overall, this brief outline emphasizes the contribution of neck muscle inflow to the construction and fine-tuning of perception of body orientation and motion. Furthermore, it indicates that tonic neck-proprioceptive input may induce persistent influences on the subject's mental representation of space. These plastic changes might adapt motion sensitiveness to lasting or permanent head positional or motor changes.
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Affiliation(s)
| | - Marco Schieppati
- Department of Public Health, Experimental and Forensic Medicine, University of Pavia, Pavia, Italy
- Centro Studi Attività Motorie (CSAM), Fondazione Salvatore Maugeri (IRCSS), Scientific Institute of Pavia, Pavia, Italy
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Neck Strengthening Recommendations for Concussion Risk Reduction in Youth Sport. INTERNATIONAL JOURNAL OF ATHLETIC THERAPY AND TRAINING 2014. [DOI: 10.1123/ijatt.2014-0043] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Honeine JL, Schieppati M. Time-interval for integration of stabilizing haptic and visual information in subjects balancing under static and dynamic conditions. Front Syst Neurosci 2014; 8:190. [PMID: 25339872 PMCID: PMC4186340 DOI: 10.3389/fnsys.2014.00190] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2014] [Accepted: 09/17/2014] [Indexed: 01/22/2023] Open
Abstract
Maintaining equilibrium is basically a sensorimotor integration task. The central nervous system (CNS) continually and selectively weights and rapidly integrates sensory inputs from multiple sources, and coordinates multiple outputs. The weighting process is based on the availability and accuracy of afferent signals at a given instant, on the time-period required to process each input, and possibly on the plasticity of the relevant pathways. The likelihood that sensory inflow changes while balancing under static or dynamic conditions is high, because subjects can pass from a dark to a well-lit environment or from a tactile-guided stabilization to loss of haptic inflow. This review article presents recent data on the temporal events accompanying sensory transition, on which basic information is fragmentary. The processing time from sensory shift to reaching a new steady state includes the time to (a) subtract or integrate sensory inputs; (b) move from allocentric to egocentric reference or vice versa; and (c) adjust the calibration of motor activity in time and amplitude to the new sensory set. We present examples of processes of integration of posture-stabilizing information, and of the respective sensorimotor time-intervals while allowing or occluding vision or adding or subtracting tactile information. These intervals are short, in the order of 1–2 s for different postural conditions, modalities and deliberate or passive shift. They are just longer for haptic than visual shift, just shorter on withdrawal than on addition of stabilizing input, and on deliberate than unexpected mode. The delays are the shortest (for haptic shift) in blind subjects. Since automatic balance stabilization may be vulnerable to sensory-integration delays and to interference from concurrent cognitive tasks in patients with sensorimotor problems, insight into the processing time for balance control represents a critical step in the design of new balance- and locomotion training devices.
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Affiliation(s)
- Jean-Louis Honeine
- Department of Public Health, Experimental and Forensic Medicine, University of Pavia Pavia, Italy
| | - Marco Schieppati
- Department of Public Health, Experimental and Forensic Medicine, University of Pavia Pavia, Italy ; Centro Studi Attività Motorie (CSAM), Fondazione Salvatore Maugeri (IRCSS), Scientific Institute of Pavia Pavia, Italy
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Donoyama N, Suoh S, Ohkoshi N. Effectiveness of Anma massage therapy in alleviating physical symptoms in outpatients with Parkinson's disease: a before-after study. Complement Ther Clin Pract 2014; 20:251-61. [PMID: 25201579 DOI: 10.1016/j.ctcp.2014.07.010] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2014] [Revised: 06/27/2014] [Accepted: 07/29/2014] [Indexed: 10/24/2022]
Abstract
We aimed to confirm the physical effects of a single Anma massage session and continuous Anma massage therapy for outpatients with Parkinson's disease (PD). Twenty-one PD outpatients (mean age, 64.43 ± 8.39 [SD] years; Hoehn and Yahr stage I-IV) received a single 40-min Anma massage session involving upper and lower limb exercises and some subsequently received seven weekly Anma massage sessions. After a single session, visual analogue scale scores were significantly lower for muscle stiffness, movement difficulties, pain, and fatigue; gait speed and pegboard test time were significantly shortened; stride length was significantly lengthened; and shoulder flexion and abduction were significantly improved. No significant changes occurred in controls. After continuous sessions, we found general improvements in the same outcomes. In conclusion, Anma massage might effectively alleviate various physical PD symptoms; furthermore, because it is given through clothing, Anma massage is accessible for PD patients with movement difficulties.
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Affiliation(s)
- Nozomi Donoyama
- Course of Acupuncture and Moxibustion, Department of Health, Faculty of Health Sciences, Tsukuba University of Technology, 4-12-7 Kasuga, Tsukuba, Ibaraki 305-8521, Japan.
| | - Sachie Suoh
- Course of Acupuncture and Moxibustion, Department of Health, Faculty of Health Sciences, Tsukuba University of Technology, 4-12-7 Kasuga, Tsukuba, Ibaraki 305-8521, Japan.
| | - Norio Ohkoshi
- Course of Neurology, Department of Health, Faculty of Health Sciences, Tsukuba University of Technology, 4-12-7 Kasuga, Tsukuba, Ibaraki 305-8521, Japan.
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Cutfield NJ, Scott G, Waldman AD, Sharp DJ, Bronstein AM. Visual and proprioceptive interaction in patients with bilateral vestibular loss. NEUROIMAGE-CLINICAL 2014; 4:274-82. [PMID: 25061564 PMCID: PMC4107374 DOI: 10.1016/j.nicl.2013.12.013] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/25/2013] [Revised: 12/21/2013] [Accepted: 12/24/2013] [Indexed: 11/24/2022]
Abstract
Following bilateral vestibular loss (BVL) patients gradually adapt to the loss of vestibular input and rely more on other sensory inputs. Here we examine changes in the way proprioceptive and visual inputs interact. We used functional magnetic resonance imaging (fMRI) to investigate visual responses in the context of varying levels of proprioceptive input in 12 BVL subjects and 15 normal controls. A novel metal-free vibrator was developed to allow vibrotactile neck proprioceptive input to be delivered in the MRI system. A high level (100 Hz) and low level (30 Hz) control stimulus was applied over the left splenius capitis; only the high frequency stimulus generates a significant proprioceptive stimulus. The neck stimulus was applied in combination with static and moving (optokinetic) visual stimuli, in a factorial fMRI experimental design. We found that high level neck proprioceptive input had more cortical effect on brain activity in the BVL patients. This included a reduction in visual motion responses during high levels of proprioceptive input and differential activation in the midline cerebellum. In early visual cortical areas, the effect of high proprioceptive input was present for both visual conditions but in lateral visual areas, including V5/MT, the effect was only seen in the context of visual motion stimulation. The finding of a cortical visuo-proprioceptive interaction in BVL patients is consistent with behavioural data indicating that, in BVL patients, neck afferents partly replace vestibular input during the CNS-mediated compensatory process. An fMRI cervico-visual interaction may thus substitute the known visuo-vestibular interaction reported in normal subject fMRI studies. The results provide evidence for a cortical mechanism of adaptation to vestibular failure, in the form of an enhanced proprioceptive influence on visual processing. The results may provide the basis for a cortical mechanism involved in proprioceptive substitution of vestibular function in BVL patients. A novel air turbine vibrotactile device for the MRI environment is developed. Neck proprioception and visual motion are applied in a factorial fMRI experiment. A cervico-visual fMRI interaction is shown in bilateral vestibular loss patients (BVL). This cervico-visual interaction in BVL mimics the normal visuo-vestibular interaction.
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Affiliation(s)
- Nicholas J Cutfield
- Department of Medicine & Brain Health Research Centre, University of Otago & Neurology, Dunedin Hospital, Southern District Health Board, Dunedin, New Zealand ; Neuro-otology Unit, Division of Brain Sciences, Imperial College London, UK
| | - Gregory Scott
- Computational, Cognitive and Clinical Neuroimaging Laboratory, Division of Brain Sciences, Imperial College London, UK
| | - Adam D Waldman
- Department of Imaging, Division of Brain Sciences, Imperial College London, UK
| | - David J Sharp
- Computational, Cognitive and Clinical Neuroimaging Laboratory, Division of Brain Sciences, Imperial College London, UK
| | - Adolfo M Bronstein
- Neuro-otology Unit, Division of Brain Sciences, Imperial College London, UK
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Gramann K, Ferris DP, Gwin J, Makeig S. Imaging natural cognition in action. Int J Psychophysiol 2014; 91:22-9. [PMID: 24076470 PMCID: PMC3983402 DOI: 10.1016/j.ijpsycho.2013.09.003] [Citation(s) in RCA: 118] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2013] [Revised: 09/09/2013] [Accepted: 09/13/2013] [Indexed: 11/23/2022]
Abstract
The primary function of the human brain is arguably to optimize the results of our motor actions in an ever-changing environment. Our cognitive processes and supporting brain dynamics are inherently coupled both to our environment and to our physical structure and actions. To investigate human cognition in its most natural forms demands imaging of brain activity while participants perform naturally motivated actions and interactions within a full three-dimensional environment. Transient, distributed brain activity patterns supporting spontaneous motor actions, performed in pursuit of naturally motivated goals, may involve any or all parts of cortex and must be precisely timed at a speed faster than the speed of thought and action. Hemodynamic imaging methods give information about brain dynamics on a much slower scale, and established techniques for imaging brain dynamics in all modalities forbid participants from making natural extensive movements so as to avoid intractable movement-related artifacts. To overcome these limitations, we are developing mobile brain/body imaging (MoBI) approaches to study natural human cognition. By synchronizing lightweight, high-density electroencephalographic (EEG) recording with recordings of participant sensory experience, body and eye movements, and other physiological measures, we can apply advanced data analysis techniques to the recorded signal ensemble. This MoBI approach enables the study of human brain dynamics accompanying active human cognition in its most natural forms. Results from our studies have provided new insights into the brain dynamics supporting natural cognition and can extend theories of human cognition and its evolutionary function - to optimize the results of our behavior to meet ever-changing goals, challenges, and opportunities.
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Affiliation(s)
- Klaus Gramann
- Biological Psychology and Neuroergonomics, Technical University Berlin, Germany; Center for Advanced Neurological Engineering, University of California, San Diego, USA.
| | - Daniel P Ferris
- Human Neuromechanics Laboratory, University of Michigan, Ann Arbor, USA
| | - Joseph Gwin
- Human Neuromechanics Laboratory, University of Michigan, Ann Arbor, USA
| | - Scott Makeig
- Swartz Center for Computational Neuroscience, University of California, San Diego, USA
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Freppel S, Bisdorff A, Colnat-Coulbois S, Ceyte H, Cian C, Gauchard G, Auque J, Perrin P. Visuo-proprioceptive interactions in degenerative cervical spine diseases requiring surgery. Neuroscience 2013; 255:226-32. [DOI: 10.1016/j.neuroscience.2013.09.060] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2013] [Revised: 09/25/2013] [Accepted: 09/26/2013] [Indexed: 12/21/2022]
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Macphail K. Is there a hierarchy of survival reflexes? Med Hypotheses 2013; 81:638-42. [DOI: 10.1016/j.mehy.2013.07.020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2013] [Accepted: 07/05/2013] [Indexed: 11/16/2022]
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Guinet M, Michel C. Prism adaptation and neck muscle vibration in healthy individuals: are two methods better than one? Neuroscience 2013; 254:443-51. [PMID: 24035829 DOI: 10.1016/j.neuroscience.2013.08.067] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2013] [Revised: 08/29/2013] [Accepted: 08/29/2013] [Indexed: 11/18/2022]
Abstract
Studies involving therapeutic combinations reveal an important benefit in the rehabilitation of neglect patients when compared to single therapies. In light of these observations our present work examines, in healthy individuals, sensorimotor and cognitive after-effects of prism adaptation and neck muscle vibration applied individually or simultaneously. We explored sensorimotor after-effects on visuo-manual open-loop pointing, visual and proprioceptive straight-ahead estimations. We assessed cognitive after-effects on the line bisection task. Fifty-four healthy participants were divided into six groups designated according to the exposure procedure used with each: 'Prism' (P) group; 'Vibration with a sensation of body rotation' (Vb) group; 'Vibration with a move illusion of the LED' (Vl) group; 'Association with a sensation of body rotation' (Ab) group; 'Association with a move illusion of the LED' (Al) group; and 'Control' (C) group. The main findings showed that prism adaptation applied alone or combined with vibration showed significant adaptation in visuo-manual open-loop pointing, visual straight-ahead and proprioceptive straight-ahead. Vibration alone produced significant after-effects on proprioceptive straight-ahead estimation in the Vl group. Furthermore all groups (except C group) showed a rightward neglect-like bias in line bisection following the training procedure. This is the first demonstration of cognitive after-effects following neck muscle vibration in healthy individuals. The simultaneous application of both methods did not produce significant greater after-effects than prism adaptation alone in both sensorimotor and cognitive tasks. These results are discussed in terms of transfer of sensorimotor plasticity to spatial cognition in healthy individuals.
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Affiliation(s)
- M Guinet
- Université de Bourgogne, Campus Universitaire, UFR STAPS, BP 27877, Dijon F-21078, France; INSERM, U 1093, Cognition, Action et Plasticité sensorimotrice, Dijon F-21078, France
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Pain in chemotherapy-induced neuropathy--more than neuropathic? Pain 2013; 154:2877-2887. [PMID: 23999056 DOI: 10.1016/j.pain.2013.08.028] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2013] [Revised: 07/16/2013] [Accepted: 08/26/2013] [Indexed: 11/23/2022]
Abstract
Chemotherapy-induced neuropathy (CIN) is an adverse effect of chemotherapy. Pain in CIN might comprise neuropathic and nonneuropathic (ie, musculoskeletal) pain components, which might be characterized by pain patterns, electrophysiology, and somatosensory profiling. Included were 146 patients (100 female, 46 male; aged 56 ± 0.8 years) with CIN arising from different chemotherapy regimens. Patients were characterized clinically through nerve conduction studies (NCS) and quantitative sensory testing (QST). Questionnaires for pain (McGill) and anxiety/depression (Hospital Anxiety and Depression Scale) were supplied. Patients were followed-up after 17 days. Large- (61%) and mixed- (35%) fibre neuropathies were more frequent than small-fibre neuropathy (1.4%). The 5 major chemotherapeutic regimens impacted differently on large- but not on small-fibre function and did not predict painfulness. Chronic pain associated with CIN was reported in 41.7%. Painless and painful CIN did not differ in QST profiles or electrophysiological findings, but different somatosensory patterns were found in CIN subgroups (pain at rest [RestP], n = 25; movement-associated pain [MovP], n = 15; both pain characteristics [MovP+RestP], n = 21; or no pain [NonP], n = 85): small-fibre function (cold-detection threshold, CDT: z score: -1.46 ± 0.21, P < 0.01) was most impaired in RestP; mechanical hyperalgesia was exclusively found in MovP (z score: +0.81 ± 0.30, P < 0.05). "Anxiety" discriminated between painful and painless CIN; "CDT" and "anxiety" discriminated between patients with ongoing (RestP) and movement-associated pain (MovP) or pain components (MovP+RestP). The detrimental effect of chemotherapy on large fibres failed to differentiate painful from painless CIN. Patients stratified for musculoskeletal or neuropathic pain, however, differed in psychological and somatosensory parameters. This stratification might allow for the application of a more specific therapy.
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Chu H, Li MH, Huang YC, Lee SY. Simultaneous transcutaneous electrical nerve stimulation mitigates simulator sickness symptoms in healthy adults: a crossover study. BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE 2013; 13:84. [PMID: 23587135 PMCID: PMC3637548 DOI: 10.1186/1472-6882-13-84] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/29/2012] [Accepted: 04/09/2013] [Indexed: 11/10/2022]
Abstract
Background Flight simulators have been used to train pilots to experience and recognize spatial disorientation, a condition in which pilots incorrectly perceive the position, location, and movement of their aircrafts. However, during or after simulator training, simulator sickness (SS) may develop. Spatial disorientation and SS share common symptoms and signs and may involve a similar mechanism of dys-synchronization of neural inputs from the vestibular, visual, and proprioceptive systems. Transcutaneous electrical nerve stimulation (TENS), a maneuver used for pain control, was found to influence autonomic cardiovascular responses and enhance visuospatial abilities, postural control, and cognitive function. The purpose of present study was to investigate the protective effects of TENS on SS. Methods Fifteen healthy young men (age: 28.6 ± 0.9 years, height: 172.5 ± 1.4 cm, body weight: 69.3 ± 1.3 kg, body mass index: 23.4 ± 1.8 kg/m2) participated in this within-subject crossover study. SS was induced by a flight simulator. TENS treatment involved 30 minutes simultaneous electrical stimulation of the posterior neck and the right Zusanli acupoint. Each subject completed 4 sessions (control, SS, TENS, and TENS + SS) in a randomized order. Outcome indicators included SS symptom severity and cognitive function, evaluated with the Simulator Sickness Questionnaire (SSQ) and d2 test of attention, respectively. Sleepiness was rated using the Visual Analogue Scales for Sleepiness Symptoms (VAS-SS). Autonomic and stress responses were evaluated by heart rate, heart rate variability (HRV) and salivary stress biomarkers (salivary alpha-amylase activity and salivary cortisol concentration). Results Simulator exposure increased SS symptoms (SSQ and VAS-SS scores) and decreased the task response speed and concentration. The heart rate, salivary stress biomarker levels, and the sympathetic parameter of HRV increased with simulator exposure, but parasympathetic parameters decreased (p < 0.05). After TENS treatment, SS symptom severity significantly decreased and the subjects were more able to concentrate and made fewer cognitive test errors (p < 0.05). Conclusions Sympathetic activity increased and parasympathetic activity decreased after simulator exposure. TENS was effective in reducing SS symptoms and alleviating cognitive impairment. Trial registration number Australia and New Zealand Clinical Trials Register: http://ACTRN12612001172897
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Pettorossi VE, Panichi R, Botti FM, Kyriakareli A, Ferraresi A, Faralli M, Schieppati M, Bronstein AM. Prolonged asymmetric vestibular stimulation induces opposite, long-term effects on self-motion perception and ocular responses. J Physiol 2013; 591:1907-20. [PMID: 23318876 DOI: 10.1113/jphysiol.2012.241182] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
Self-motion perception and the vestibulo-ocular reflex (VOR) were investigated in healthy subjects during asymmetric whole body yaw plane oscillations while standing on a platform in the dark. Platform oscillation consisted of two half-sinusoidal cycles of the same amplitude (40°) but different duration, featuring a fast (FHC) and a slow half-cycle (SHC). Rotation consisted of four or 20 consecutive cycles to probe adaptation further with the longer duration protocol. Self-motion perception was estimated by subjects tracking with a pointer the remembered position of an earth-fixed visual target. VOR was measured by electro-oculography. The asymmetric stimulation pattern consistently induced a progressive increase of asymmetry in motion perception, whereby the gain of the tracking response gradually increased during FHCs and decreased during SHCs. The effect was observed already during the first few cycles and further increased during 20 cycles, leading to a totally distorted location of the initial straight-ahead. In contrast, after some initial interindividual variability, the gain of the slow phase VOR became symmetric, decreasing for FHCs and increasing for SHCs. These oppositely directed adaptive effects in motion perception and VOR persisted for nearly an hour. Control conditions using prolonged but symmetrical stimuli produced no adaptive effects on either motion perception or VOR. These findings show that prolonged asymmetric activation of the vestibular system leads to opposite patterns of adaptation of self-motion perception and VOR. The results provide strong evidence that semicircular canal inputs are processed centrally by independent mechanisms for perception of body motion and eye movement control. These divergent adaptation mechanisms enhance awareness of movement toward the faster body rotation, while improving the eye stabilizing properties of the VOR.
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Affiliation(s)
- V E Pettorossi
- Department of Medicina Interna, Sezione di Fisiologia Umana, Universit`a di Perugia, Perugia, Italy
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Panichaporn W, Hiengkaew V, Thanungkul S, Vachalathiti R, Emasithi A. Postural Stability and Visual Verticality Perception of Neck Disturbance of the Middle-aged during Quiet Standing. J Phys Ther Sci 2013. [DOI: 10.1589/jpts.25.281] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Affiliation(s)
- Wanvisa Panichaporn
- Faculty of Physical Therapy, Mahidol University: 999 Phutthamonthon 4 Rd, Salaya, Phutthamonthon, Nakhon Pathom 73170, Thailand
| | - Vimonwan Hiengkaew
- Faculty of Physical Therapy, Mahidol University: 999 Phutthamonthon 4 Rd, Salaya, Phutthamonthon, Nakhon Pathom 73170, Thailand
| | - Sumethee Thanungkul
- Center of Biomedical Instrument Research and Development, Institute of Molecular Biosciences, Mahidol University
| | - Roongtiwa Vachalathiti
- Faculty of Physical Therapy, Mahidol University: 999 Phutthamonthon 4 Rd, Salaya, Phutthamonthon, Nakhon Pathom 73170, Thailand
| | - Alongkot Emasithi
- Department of Physical Therapy, Faculty of Associated Medical Sciences, Khon Kaen University
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Uthaikhup S, Jull G, Sungkarat S, Treleaven J. The influence of neck pain on sensorimotor function in the elderly. Arch Gerontol Geriatr 2012; 55:667-72. [DOI: 10.1016/j.archger.2012.01.013] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2011] [Revised: 01/27/2012] [Accepted: 01/27/2012] [Indexed: 10/28/2022]
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García-López D, Garatachea N, Marín PJ, Martín T, Herrero AJ. Acute effects of whole-body vibrations on balance, maximal force and perceived exertion: Vertical platform versus oscillating platform. Eur J Sport Sci 2012. [DOI: 10.1080/17461391.2011.573003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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