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Bueno GAS, do Bomfim AD, Campos LF, Martins AC, Elmescany RB, Stival MM, Funghetto SS, de Menezes RL. Non-invasive neuromodulation in reducing the risk of falls and fear of falling in community-dwelling older adults: systematic review. Front Aging Neurosci 2024; 15:1301790. [PMID: 38516635 PMCID: PMC10956576 DOI: 10.3389/fnagi.2023.1301790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Accepted: 12/29/2023] [Indexed: 03/23/2024] Open
Abstract
Introduction Neuromodulation is a non-invasive technique that allows for the modulation of cortical excitability and can produce changes in neuronal plasticity. Its application has recently been associated with the improvement of the motor pattern in older adults individuals with sequelae from neurological conditions. Objective To highlight the effects of non-invasive neuromodulation on the risk of falls and fear of falling in community-dwelling older adults. Methods Systematic review conducted in accordance with the items of the Cochrane Handbook for Systematic Reviews of Interventions. Searches were carried out in electronic databases: CENTRAL, Clinical Trials, LILACS, PEDro, PubMed, Web of Science, between 13/06/2020 and 20/09/2023, including all indexed texts without language and publication date restrictions, randomized controlled clinical trials, which presented as their main outcome non-invasive neuromodulation for reducing the fear of falling and risk of falls in the older adults, regardless of gender. Results An extensive search identified 9 eligible studies for qualitative synthesis from 8,168 potential articles. Rigorous filtering through automated tools, title/abstract screening, and full-text evaluation ensured a focused and relevant selection for further analysis. Most studies (80%) used transcranial direct current electrical stimulation as an intervention, over the motor cortex or cerebellum area, with anodal current and monopolar electrode placement. The intensity ranged from 1.2 mA to 2 mA, with a duration of 20 min (80%). The profile of the research participants was predominantly individuals over 65 years old (80%), with a high risk of falls (60%) and a minority reporting a fear of falling (40%). The outcomes were favorable for the use of neuromodulation for the risk of falls in the older adults, through improvements in static and dynamic balance. Conclusion The results may have limited applicability to direct outcomes related to the risk of falls, in addition to evidence regarding the difference or lack thereof in applicability between genders, fallers and non-fallers, as well as older adults individuals with low and high fear of falling. Systematic review registration The protocol for this review was registered in the International Prospective Register of Systematic Reviews (PROSPERO) to obtain the identification of ongoing research (ID: 222429).
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Affiliation(s)
- Guilherme Augusto Santos Bueno
- Department of Medicine, Centro Universitário Euro Americano, Brasilia, Brazil
- Postgraduate Program in Health Sciences and Technologies, University of Brasilía, Brasilia, Brazil
| | | | - Lorrane Freitas Campos
- Postgraduate Program in Health Sciences and Technologies, University of Brasilía, Brasilia, Brazil
| | | | | | - Marina Morato Stival
- Postgraduate Program in Health Sciences and Technologies, University of Brasilía, Brasilia, Brazil
| | | | - Ruth Losada de Menezes
- Postgraduate Program in Health Sciences and Technologies, University of Brasilía, Brasilia, Brazil
- Postgraduate Program in Health Sciences, Federal University of Goiás, Goiânia, Brazil
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Vives-Vilarroig J, Ruiz-Bernardo P, García-Gómez A. Effects of Horseback Riding on the Postural Control of Autistic Children: A Multiple Baseline Across-subjects Design. J Autism Dev Disord 2024:10.1007/s10803-023-06174-5. [PMID: 38246963 DOI: 10.1007/s10803-023-06174-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/27/2023] [Indexed: 01/23/2024]
Abstract
The aim of this research was to study the effect of a horseback-riding programme on postural control in a group of autistic children (ASD). Nine children aged 9 to 12 years participated in this study through a multiple baseline across subjects design. The whole programme took place over nine months. Participants followed a previously developed specific horseback-riding programme, consisting of 45-minute sessions held twice a week for at least three months. To evaluate postural control, the average velocity of the centre of pressure displacement was measured by means of a posturographic platform. Results indicated that this intervention with horses had a positive effect on the postural control in children with ASDs.
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Affiliation(s)
- Juan Vives-Vilarroig
- Universidad Cardenal Herrera, CEU, Castellón, C. Grecia, 31, Castellón de la Plana, 12006, España
| | - Paola Ruiz-Bernardo
- Universidad Jaume I. Castellón, Av. Vicent Sos Baynat, s/n, Castellón de la Plana, 12071, España.
| | - Andrés García-Gómez
- Universidad de Extremadura. Badajoz, Av. de Elvas, s/n, Badajoz, 06006, España
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3
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Pan Z, Liu L, Li X, Ma Y. Characteristics of muscle synergy and anticipatory synergy adjustments strategy when cutting in different angles. Gait Posture 2024; 107:114-120. [PMID: 36990911 DOI: 10.1016/j.gaitpost.2023.03.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 02/18/2023] [Accepted: 03/16/2023] [Indexed: 03/31/2023]
Abstract
BACKGROUND Cutting is a quick change of direction that challenges body balance and stability. As the cut-angle increases, the elite athlete can achieve higher performance by pre-adjusting the posture of the lower limb joints. However, it is unclear how the cut-angle affects the neuromuscular control of cutting and the step before cutting, which is essential for daily training and preventing injury in large-angle cutting. RESEARCH QUESTION The purpose of this study was to determine how neuromuscular control strategies change under different angles for cutting and the step before cutting METHODS: Non-negative matrix factorisation and K-means clustering were used to extract muscle synergy in the trunk and lower limbs of 12 athletes when cutting at different angles. Uncontrolled manifold analysis was used to clarify whether the muscle synergy fluctuations in the step before cutting were beneficial in stabilising the COP during the cutting. RESULTS This study found that the angle did not affect the number of muscle synergies either in the cutting or the step before the cutting. As the angle increases, the activation timing of synergy module 2 during cutting moves forward and is tightly integrated with module 1. The combined synergy at 90° accounted for the largest proportion of either cutting or the step before cutting and had a lower synergy index. SIGNIFICANCE Muscle synergy can respond to large-angle cutting through flexible combinations. The muscle synergy for 90° cutting is less regular and has a lower degree of anticipatory synergy adjustments, which may result in poorer postural stability and an increased risk of lower limb joint injury during cutting.
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Affiliation(s)
- Zhengye Pan
- College of Physical Education and Sports, Beijing Normal University, Beijing, China
| | - Lushuai Liu
- College of Physical Education and Sports, Beijing Normal University, Beijing, China
| | - Xingman Li
- College of Physical Education and Sports, Beijing Normal University, Beijing, China
| | - Yunchao Ma
- College of Physical Education and Sports, Beijing Normal University, Beijing, China.
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4
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Smith JA, Tain R, Sharp KG, Glynn LM, Van Dillen LR, Henslee K, Jacobs JV, Cramer SC. Identifying the neural correlates of anticipatory postural control: A novel fMRI paradigm. Hum Brain Mapp 2023; 44:4088-4100. [PMID: 37162423 PMCID: PMC10258523 DOI: 10.1002/hbm.26332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 04/04/2023] [Accepted: 04/25/2023] [Indexed: 05/11/2023] Open
Abstract
Altered postural control in the trunk/hip musculature is a characteristic of multiple neurological and musculoskeletal conditions. Previously it was not possible to determine if altered cortical and subcortical sensorimotor brain activation underlies impairments in postural control. This study used a novel fMRI-compatible paradigm to identify the brain activation associated with postural control in the trunk and hip musculature. BOLD fMRI imaging was conducted as participants performed two versions of a lower limb task involving lifting the left leg to touch the foot to a target. For the supported leg raise (SLR) the leg is raised from the knee while the thigh remains supported. For the unsupported leg raise (ULR) the leg is raised from the hip, requiring postural muscle activation in the abdominal/hip extensor musculature. Significant brain activation during the SLR task occurred predominantly in the right primary and secondary sensorimotor cortical regions. Brain activation during the ULR task occurred bilaterally in the primary and secondary sensorimotor cortical regions, as well as cerebellum and putamen. In comparison with the SLR, the ULR was associated with significantly greater activation in the right premotor/SMA, left primary motor and cingulate cortices, primary somatosensory cortex, supramarginal gyrus/parietal operculum, superior parietal lobule, cerebellar vermis, and cerebellar hemispheres. Cortical and subcortical regions activated during the ULR, but not during the SLR, were consistent with the planning, and execution of a task involving multisegmental, bilateral postural control. Future studies using this paradigm will determine mechanisms underlying impaired postural control in patients with neurological and musculoskeletal dysfunction.
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Affiliation(s)
- Jo Armour Smith
- Department of Physical TherapyChapman UniversityOrangeCaliforniaUSA
| | - Rongwen Tain
- Campus Center for NeuroimagingUniversity of CaliforniaIrvineCaliforniaUSA
| | - Kelli G. Sharp
- Department of Dance, School of ArtsUniversity of CaliforniaIrvineCaliforniaUSA
- Department of Physical Medicine and RehabilitationUniversity of CaliforniaIrvineCaliforniaUSA
| | - Laura M. Glynn
- Department of PsychologyChapman UniversityOrangeCaliforniaUSA
| | - Linda R. Van Dillen
- Program in Physical Therapy, Orthopaedic SurgeryWashington University School of Medicine in St. LouisSt. LouisWashingtonUSA
| | - Korinne Henslee
- Department of Physical TherapyChapman UniversityOrangeCaliforniaUSA
| | - Jesse V. Jacobs
- Rehabilitation and Movement ScienceUniversity of VermontBurlingtonVermontUSA
| | - Steven C. Cramer
- Department of NeurologyUniversity of CaliforniaLos AngelesCaliforniaUSA
- California Rehabilitation InstituteLos AngelesCaliforniaUSA
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5
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Joubran K, Bar-Haim S, Shmuelof L. The functional and structural neural correlates of dynamic balance impairment and recovery in persons with acquired brain injury. Sci Rep 2022; 12:7990. [PMID: 35568728 PMCID: PMC9107482 DOI: 10.1038/s41598-022-12123-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2021] [Accepted: 05/03/2022] [Indexed: 12/29/2022] Open
Abstract
Dynamic balance control is associated with the function of multiple brain networks and is impaired following Acquired Brain Injury (ABI). This study aims to characterize the functional and structural correlates of ABI-induced dynamic balance impairments and recovery following a rehabilitation treatment. Thirty-one chronic participants with ABI participated in a novel rehabilitation treatment composed of 22 sessions of a perturbation-based rehabilitation training. Dynamic balance was assessed using the Community Balance and Mobility scale (CB&M) and the 10-Meter Walking Test (10MWT). Brain function was estimated using resting-state fMRI imaging that was analysed using independent component analysis (ICA), and regions-of-interest analyses. Brain morphology was also assessed using structural MRI. ICA revealed a reduction in component-related activation within the sensorimotor and cerebellar networks post-intervention. Improvement in CB&M scale was associated with a reduction in FC within the cerebellar network and with baseline FC within the cerebellar-putamen and cerebellar-thalamic networks. Improvement in 10MWT was associated with baseline FC within the cerebellar-putamen and cerebellar-cortical networks. Brain volume analysis did not reveal structural correlates of dynamic balance, but dynamic balance was correlated with time since injury. Our results show that dynamic balance recovery is associated with FC reduction within and between the cerebellar and sensorimotor networks. The lack of global structural correlates of dynamic balance may point to the involvement of specific networks in balance control.
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Affiliation(s)
- Katherin Joubran
- Department of Cognitive and Brain Sciences, Ben-Gurion University of the Negev, P.O. Box 653, 84105, Beer-Sheva, Israel. .,Zlotowski Center for Neuroscience, Ben-Gurion University of the Negev, 84105, Beer-Sheva, Israel. .,Department of Physical Therapy, Zefat College, Zefat, Israel.
| | - Simona Bar-Haim
- Department of Physical Therapy, Recanati School for Community Health Professions, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Lior Shmuelof
- Department of Cognitive and Brain Sciences, Ben-Gurion University of the Negev, P.O. Box 653, 84105, Beer-Sheva, Israel. .,Zlotowski Center for Neuroscience, Ben-Gurion University of the Negev, 84105, Beer-Sheva, Israel.
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Desmons M, Rohel A, Desgagnés A, Mercier C, Massé-Alarie H. Influence of different transcranial magnetic stimulation current directions on the corticomotor control of lumbar erector spinae muscles during a static task. J Neurophysiol 2021; 126:1276-1288. [PMID: 34550037 DOI: 10.1152/jn.00137.2021] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Different directions of transcranial magnetic stimulation (TMS) can activate different neuronal circuits. Whereas posteroanterior current (PA-TMS) depolarizes mainly interneurons in primary motor cortex (M1), an anteroposterior current (AP-TMS) has been suggested to activate different M1 circuits and perhaps axons from the premotor regions. Although M1 is also involved in the control of axial muscles, no study has explored whether different current directions activate different M1 circuits that may have distinct functional roles. The aim of the study was to compare the effect of different current directions (PA- and AP-TMS) on the corticomotor control and spatial cortical organization of the lumbar erector spinae muscle (LES). Thirty-four healthy participants were recruited for two independent experiments, and LES motor-evoked potentials (MEPs) were recorded. In experiment 1 (n = 17), active motor threshold (AMT), MEP latencies, recruitment curve (90% to 160% AMT), and excitatory and inhibitory intracortical mechanisms by paired-pulse TMS (80% followed by 120% AMT stimuli at 2-, 3-, 10-, and 15-ms interstimulus intervals) were tested with a double-cone (n = 12) and a figure-of-eight (n = 5) coil. In experiment 2 (n = 17), LES cortical representations were tested with PA- and AP-TMS. AMT was higher for AP- compared with PA-TMS (P = 0.002). Longer latencies with AP-TMS were present compared with PA-TMS (P = 0.017). AP-TMS produced more inhibition compared with PA-TMS at 2 ms and 3 ms (P = 0.010), but no difference was observed for longer intervals. No difference was found for recruitment curve and mapping. These findings suggest that PA- and AP-TMS may activate different cortical circuits controlling low back muscles, as proposed for hand muscles.NEW & NOTEWORTHY For the first time, anteroposterior and posteroanterior induced electric currents in the brain were compared when targeting back muscle representation with transcranial magnetic stimulation. The use of the anteroposterior current resulted in later response latency, larger inhibition probed by paired-pulse stimulation, and higher motor threshold. These important differences between current directions suggest that each of the current directions may recruit specific cortical circuits involved in the control of back muscles, similar to that for hand muscles.
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Affiliation(s)
- Mikaël Desmons
- CIRRIS Research Centre, Université Laval, Quebec City, Quebec, Canada
| | - Antoine Rohel
- CIRRIS Research Centre, Université Laval, Quebec City, Quebec, Canada
| | - Amélie Desgagnés
- CIRRIS Research Centre, Université Laval, Quebec City, Quebec, Canada
| | - Catherine Mercier
- CIRRIS Research Centre, Université Laval, Quebec City, Quebec, Canada.,Rehabilitation Unit, Université Laval, Quebec City, Quebec, Canada
| | - Hugo Massé-Alarie
- CIRRIS Research Centre, Université Laval, Quebec City, Quebec, Canada.,Rehabilitation Unit, Université Laval, Quebec City, Quebec, Canada
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7
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Kannan LN, Bhatt TS. Perturbation-based balance assessment: Examining reactive balance control in older adults with mild cognitive impairments. Physiol Int 2021; 108:353-370. [PMID: 34529584 DOI: 10.1556/2060.2021.00181] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Accepted: 07/17/2021] [Indexed: 11/19/2022]
Abstract
Background Older adults with mild cognitive impairment (OAwMCI) present subtle balance and gait deficits along with subjective memory decline. Although these presentations might not affect activities of daily living (ADLs), they attribute to a two-folded increase in falls. While changes occurring in volitional balance control during ADLs have been extensively examined among OAwMCI, reactive balance control, required to recover from external perturbations, has received little attention. Therefore, this study examined reactive balance control in OAwMCI compared to their healthy counterparts. Methods Fifteen older adults with mild cognitive impairment (OAwMCI), fifteen cognitively intact older adults (CIOA) (>55 years), and fifteen young adults (18-30 years) were exposed to stance perturbations at three different intensities. Behavioral outcomes postural COM state stability, step length, step initiation, and step execution were computed. Results Postural COM state stability was the lowest in OAwMCI compared to CIOA and young adults, and it deteriorated at higher perturbation intensities (P < 0.001). Step length was the lowest among OAwMCI and was significantly different from young adults (P < 0.001) but not from CIOA. Unlike OAwMCI, CIOA and young adults increased their step length at higher perturbation intensities (P < 0.001). OAwMCI showed longer recovery step initiation times and shorter execution times compared to CIOA and young adults at higher perturbation intensities (P < 0.001). Conclusion OAwMCI exhibit exacerbated reactive instability and are unable to modulate their responses as the threat to balance control altered. Thus, they are at a significantly higher risk of falls than their healthy counterparts.
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Affiliation(s)
- Lakshmi N Kannan
- Department of Physical Therapy, The University of Illinois at Chicago, Chicago, Illinois, USA
| | - Tanvi S Bhatt
- Department of Physical Therapy, The University of Illinois at Chicago, Chicago, Illinois, USA
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8
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Sondergaard RE, Martino D, Kiss ZHT, Condliffe EG. TMS Motor Mapping Methodology and Reliability: A Structured Review. Front Neurosci 2021; 15:709368. [PMID: 34489629 PMCID: PMC8417420 DOI: 10.3389/fnins.2021.709368] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Accepted: 07/13/2021] [Indexed: 11/29/2022] Open
Abstract
Motor cortical representation can be probed non-invasively using a transcranial magnetic stimulation (TMS) technique known as motor mapping. The mapping technique can influence features of the maps because of several controllable elements. Here we review the literature on six key motor mapping parameters, as well as their influence on outcome measures and discuss factors impacting their selection. 132 of 1,587 distinct records were examined in detail and synthesized to form the basis of our review. A summary of mapping parameters, their impact on outcome measures and feasibility considerations are reported to support the design and interpretation of TMS mapping studies.
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Affiliation(s)
- Rachel E. Sondergaard
- Department of Clinical Neuroscience, University of Calgary, Calgary, AB, Canada
- Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada
| | - Davide Martino
- Department of Clinical Neuroscience, University of Calgary, Calgary, AB, Canada
- Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada
| | - Zelma H. T. Kiss
- Department of Clinical Neuroscience, University of Calgary, Calgary, AB, Canada
- Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada
- Department of Psychiatry, University of Calgary, Calgary, AB, Canada
| | - Elizabeth G. Condliffe
- Department of Clinical Neuroscience, University of Calgary, Calgary, AB, Canada
- Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada
- Department of Pediatrics, University of Calgary, Calgary, AB, Canada
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9
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Kasahara S, Saito H. Mechanisms of postural control in older adults based on surface electromyography data. Hum Mov Sci 2021; 78:102803. [PMID: 33962246 DOI: 10.1016/j.humov.2021.102803] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Revised: 04/21/2021] [Accepted: 04/21/2021] [Indexed: 11/26/2022]
Abstract
OBJECTIVES The present study aimed to clarify the mechanisms of postural control during standing in older adults and document the mechanisms of age-related motor control based on changes in muscle activities. METHODS A total of 26 healthy male adults (older adult group, ≥65-78 years: n = 16; younger adult group, 20-23 years: n = 10) participated in this study. Ground reaction force and kinematic data of the lower limbs (hip, knee, and ankle), and electromyographic data from 6 postural muscles on the right side were recorded and quantified for each motor phase during rapid voluntary center of pressure (COP) shift. RESULTS Although hip strategy was more frequently observed in older adults than in young adults (56.3% vs. 20.0%), no muscle activity of hip agonists was observed in some (31.3%) older adults. Furthermore, older adults had a statistically significant delay in the inhibition of postural muscles during anticipatory postural adjustments (p < 0.05). After the onset of COP motion, the co-contraction time between agonists and antagonists was significantly prolonged in the older adults than in the younger adults (p < 0.05), and the reciprocal muscle pattern was unclear in the older adults. Prior to the termination of movement, agonist activity continued longer in the older adult group than in the younger adult group; that is, inhibition was insufficient in the older adult group. CONCLUSION A series of postural strategies during the voluntary movement task were altered in older adults, and this was significantly related not only with the activation but also the inhibition of postural muscles.
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Affiliation(s)
- Satoshi Kasahara
- Department of Rehabilitation Sciences, Faculty of Health Sciences, Hokkaido University, West 5, North 12, Kita-ku, Sapporo 060-0812, Japan.
| | - Hiroshi Saito
- Department of Physical Therapy, School of Rehabilitation, Tokyo Kasei University, Inariyama2-15-1, Sayama 350-1398, Japan.
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Coelho DB, Bazán PR, Zimeo Morais GA, Balardin JB, Batista AX, de Oliveira CEN, Los Angeles E, Bernardo C, Sato JR, de Lima-Pardini AC. Frontal Hemodynamic Response During Step Initiation Under Cognitive Conflict in Older and Young Healthy People. J Gerontol A Biol Sci Med Sci 2021; 76:216-223. [PMID: 32427282 DOI: 10.1093/gerona/glaa125] [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: 02/24/2020] [Indexed: 11/14/2022] Open
Abstract
Gait initiation is a daily challenge even for healthy individuals as it requires the timely coupling between the automatic anticipatory postural adjustment (APA) and the voluntary step according to the context. Modulation of this motor event has been thought to involve higher level brain control, including cognitive inhibitory circuitries. Despite the known participation of the supplementary motor area (SMA) in the modulation of some parameters of APA, the participation of areas controlling inhibition during gait initiation still needs to be investigated. In this study, the hemodynamic responses of the SMA and dorsolateral prefrontal cortex (DLPFC) were assessed using functional near-infrared spectroscopy (fNIRS) during a gait initiation task under cognitive conflict to select the foot to step (congruent [CON] and incongruent [INC] conditions). The older group (OG) showed worse inhibitory control than the young group (YG) along with more impairments in APA parameters. OG also had a lower amplitude of hemodynamic responses in both areas than YG in the INC. The INC increased the correlation between SMA and DLPFC only in the YG. Aging seems to impair the interaction between the hemodynamic responses of SMA and DLPFC, which influences APA performance in gait initiation under cognitive conflict.
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Affiliation(s)
- Daniel Boari Coelho
- Biomedical Engineering, Federal University of ABC, São Bernardo do Campo, São Paulo, Brazil
| | - Paulo Rodrigo Bazán
- Big Data Analytics - Hospital Israelita Albert Einstein, São Paulo, Brazil.,Department of Radiology, Faculty of Medicine, University of Sao Paulo, São Paulo, Brazil
| | | | | | - Alana Xavier Batista
- Department of Radiology, Faculty of Medicine, University of Sao Paulo, São Paulo, Brazil
| | | | - Emanuele Los Angeles
- Biomedical Engineering, Federal University of ABC, São Bernardo do Campo, São Paulo, Brazil
| | - Claudionor Bernardo
- Biomedical Engineering, Federal University of ABC, São Bernardo do Campo, São Paulo, Brazil
| | - João Ricardo Sato
- Center of Mathematics, Computing, and Cognition, Universidade Federal do ABC, São Bernardo do Campo, São Paulo, Brazil
| | - Andrea C de Lima-Pardini
- Laboratory of Integrative Motor Behaviour, Centre for Neuroscience Studies, Queen's University, Kingston, Ontario, Canada
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Mani H, Miyagishima S, Kozuka N, Takeda K, Taneda K, Inoue T, Sato Y, Asaka T. Development of temporal and spatial characteristics of anticipatory postural adjustments during gait initiation in children aged 3-10 years. Hum Mov Sci 2020; 75:102736. [PMID: 33310381 DOI: 10.1016/j.humov.2020.102736] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2019] [Revised: 10/30/2020] [Accepted: 11/24/2020] [Indexed: 10/22/2022]
Abstract
This study aimed to analyze the development of direction specificities of temporal and spatial control and the coordination pattern of anticipatory postural adjustment (APA) along the anteroposterior (AP) and mediolateral (ML) directions during gait initiation (GI) in children aged 3-10 years. This study included 72 healthy children aged 3-10 years and 14 young adults. The child population was divided into four groups by age: 3-4, 5-6, 7-8, and 9-10 years. The GI task included GI using the dominant limb. The peak center of feet pressure (COP) shifts during APAs (APApeak), initiation time of COP shifts (APAonset), and the COP vectors in the horizontal plane were calculated to evaluate the direction specificity of spatial, temporal, and coordination control, respectively. A difference in direction specificity development was found for the APApeak. The APApeak in the mediolateral axis, but not in the anteroposterior axis, was significantly higher in the 7-8 years age group than in other groups. Although APAonset was not found for direction specificity, a significant difference between the adult and children groups (5-6 years, 7-8 years, and 9-10 years) was observed in the direction of the COP vector. In conclusion, the developmental process of the spatial, temporal, and coordination control of APAs during GI varied with age. Furthermore, the spatial control and coordination pattern of APAs was found to be direction specific. All components of APAs, namely temporal and spatial control, coordination pattern, and direction specificities, should be analyzed to capture the developmental process of anticipatory postural control.
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Affiliation(s)
- Hiroki Mani
- Faculty of Health Sciences, Hokkaido University, Sapporo, Kita 12 Nishi 5, Kita-Ku, Sapporo, Hokkaido 060-0812, Japan.
| | - Saori Miyagishima
- Division of Rehabilitation, Sapporo Medical University Hospital, Sapporo Medical University, Minami 1 Nishi 16, Chuo-Ku, Sapporo, Hokkaido 060-8543, Japan.
| | - Naoki Kozuka
- Department of Physical Therapy, School of Health Sciences, Sapporo Medical University, Sapporo, Minami 1 Nishi 17, Chuo-Ku, Sapporo, Hokkaido 060-8556, Japan.
| | - Kenta Takeda
- Department of Rehabilitation for the Movement Functions, Research Institute of National Center for Persons with Disabilities, Namiki 4-1, Tokorozawa, Saitama 359-8555, Japan
| | - Kenji Taneda
- Graduate School of Health Sciences, Hokkaido University, Kita 12 Nishi 5, Kita-Ku, Sapporo, Hokkaido 060-0812, Japan
| | - Takahiro Inoue
- Graduate School of Health Sciences, Hokkaido University, Kita 12 Nishi 5, Kita-Ku, Sapporo, Hokkaido 060-0812, Japan
| | - Yui Sato
- Division of Rehabilitation, Sapporo Medical University Hospital, Sapporo Medical University, Minami 1 Nishi 16, Chuo-Ku, Sapporo, Hokkaido 060-8543, Japan.
| | - Tadayoshi Asaka
- Faculty of Health Sciences, Hokkaido University, Sapporo, Kita 12 Nishi 5, Kita-Ku, Sapporo, Hokkaido 060-0812, Japan.
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Sung PS, Thomas TL, Hosmer EE. Internal consistencies of the delayed trunk muscle reaction times following a treadmill-induced slip perturbation while holding and not holding a tray. Gait Posture 2020; 80:260-267. [PMID: 32559645 DOI: 10.1016/j.gaitpost.2020.06.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Revised: 06/01/2020] [Accepted: 06/03/2020] [Indexed: 02/02/2023]
Abstract
BACKGROUND Reaction time task performance using electromyography (EMG) has been widely studied in the evaluation of motor responses. However, specific testing conditions with tray usage and the reliability of the bilateral trunk muscle reactions have not been proven. RESEARCH QUESTIONS Are there internal consistencies of the reaction times for a particular condition, such as a handheld task, among the examiners? Is there a delayed reaction time on the dominant abdominal muscle in response to a treadmill-induced slip perturbation while holding or not holding a tray? METHODS One hundred and nineteen right upper and lower limb dominant individuals (71 female and 48 male subjects) were exposed to a treadmill-induced slip perturbation (0.24 m/s velocity for 1.2 cm) for 0.10 s in standing. The EMG electrodes were placed on both sides of the rectus abdominis (RA) and erector spinae (ES) muscles. The reliability of the test was established by using Cronbach's alpha, intra-class correlation coefficients (ICC2, k), and the standard error of measurements. RESULTS The results for holding a tray indicated a high degree of consistency based on Cronbach's alpha for the left RA (0.79), right RA (0.86), left ES (0.82), and right ES (0.73) muscles. However, there was a significant reaction time difference among trunk muscles (F = 10.58, p = 0.002) while not holding a tray. The post-hoc results indicated that the right RA muscle was delayed more than the bilateral ES muscles, although there was no significant difference with the left RA muscle. SIGNIFICANCE Overall, the EMG analyses for the reaction times were highly consistent with and without tray usage. The reaction times of the dominant abdominal muscles were delayed while not holding a tray. Given the high reliability, compensatory strategies by trunk dominance might be considered with a tray usage task.
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Affiliation(s)
- Paul S Sung
- Department of Physical Therapy/Motion Analysis Center, Central Michigan University, United States.
| | - Tyler L Thomas
- Department of Physical Therapy/Motion Analysis Center, Central Michigan University, United States
| | - Emily E Hosmer
- Department of Health Sciences, Central Michigan University,United States
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Silfies SP, Beattie P, Jordon M, Vendemia JMC. Assessing sensorimotor control of the lumbopelvic-hip region using task-based functional MRI. J Neurophysiol 2020; 124:192-206. [PMID: 32519579 DOI: 10.1152/jn.00288.2019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Recent brain imaging studies have suggested that cortical remodeling within sensorimotor regions are associated with persistent low back pain and may be a driving mechanism for the impaired neuromuscular control associated with this condition. This paper outlines a new approach for investigating cortical sensorimotor integration during the performance of small-amplitude lumbopelvic movements with functional MRI. Fourteen healthy right-handed participants were instructed in the lumbopelvic movement tasks performed during fMRI acquisition. Surface electromyography (EMG) collected on 8 lumbopelvic and thigh muscles captured organized patterns of muscle activation during the movement tasks. fMRI data were collected on 10 of 14 participants. Sensorimotor cortical activation across the tasks was identified using a whole brain analysis and further explored with regional analyses of key components of the cortical sensorimotor network. Head motion had low correlation to the tasks (r = -0.101 to 0.004) and head translation averaged 0.98 (0.59 mm) before motion correction. Patterns of activation of the key lumbopelvic and thigh musculature (average amplitude normalized 2-17%) were significantly different across tasks (P > 0.001). Neuroimaging demonstrated activation in key sensorimotor cortical regions that were consistent with motor planning and sensory feedback needed for performing the different tasks. This approach captures the specificity of lumbopelvic sensorimotor control using goal-based tasks (e.g., "lift your hip" vs. "contract your lumbar multifidus to 20% of maximum") performed within the confines of the scanner. Specific patterns of sensorimotor cortex activation appear to capture differences between bilateral and unilateral tasks during voluntary control of multisegmental movement in the lumbopelvic region.NEW & NOTEWORTHY We demonstrated the feasibility of using task-based functional magnetic resonance imaging (fMRI) protocols for acquiring the blood oxygen level-dependent (BOLD) response of key sensorimotor cortex regions during voluntary lumbopelvic movements. Our approach activated lumbopelvic muscles during small-amplitude movements while participants were lying supine in the scanner. Our data supports these tasks can be done with limited head motion and low correlation of head motion to the task. The approach provides opportunities for assessing the role of brain changes in persistent low back pain.
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Affiliation(s)
- Sheri P Silfies
- Doctoral Program in Physical Therapy, Department of Exercise Science, Arnold School of Public Health, University of South Carolina, Columbia, South Carolina.,McCausland Brain Imaging Center, University of South Carolina, Columbia, South Carolina
| | - Paul Beattie
- Doctoral Program in Physical Therapy, Department of Exercise Science, Arnold School of Public Health, University of South Carolina, Columbia, South Carolina
| | - Max Jordon
- Doctoral Program in Physical Therapy, Department of Exercise Science, Arnold School of Public Health, University of South Carolina, Columbia, South Carolina
| | - Jennifer M C Vendemia
- McCausland Brain Imaging Center, University of South Carolina, Columbia, South Carolina.,Institute for Mind and Brain, Department of Psychology, University of South Carolina, Columbia, South Carolina
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Shih Y, Fisher BE, Smith JA, Powers CM. Corticomotor Excitability of Gluteus Maximus Is Associated with Hip Biomechanics During a Single-Leg Drop-Jump. J Mot Behav 2020; 53:40-46. [PMID: 32090700 DOI: 10.1080/00222895.2020.1723480] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
The purpose of this study was to determine the association between corticomotor excitability (CME) of gluteus maximus (GM) and hip biomechanics during a single-leg drop-jump task. Thirty-two healthy individuals participated. The slope of the input-output curve (IOC) obtained from transcranial magnetic stimulation was used to assess CME of GM. The average hip extensor moment and peak hip flexion angle during the stance phase of the drop jump task was calculated. The slope of the IOC of GM was found to be a predictor of the average hip extensor moment (r2 = 0.18, p = 0.016) and peak hip flexion angle (r2 = 0.20, p = 0.01). Our results demonstrate that greater functional use of the hip was associated with enhanced descending neural drive of GM.
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Affiliation(s)
- Yo Shih
- Division of Biokinesiology and Physical Therapy, University of Southern California, Los Angeles, CA, USA.,Department of Physical Therapy, University of Nevada Las Vegas, Las Vegas, NV, USA
| | - Beth E Fisher
- Division of Biokinesiology and Physical Therapy, University of Southern California, Los Angeles, CA, USA
| | - Jo Armour Smith
- Department of Physical Therapy, Crean College of Health and Behavioral Sciences, Chapman University, Orange, CA, USA
| | - Christopher M Powers
- Division of Biokinesiology and Physical Therapy, University of Southern California, Los Angeles, CA, USA
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Curuk E, Lee Y, Aruin AS. Individuals with stroke improve anticipatory postural adjustments after a single session of targeted exercises. Hum Mov Sci 2020; 69:102559. [DOI: 10.1016/j.humov.2019.102559] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Revised: 11/15/2019] [Accepted: 11/19/2019] [Indexed: 10/25/2022]
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Task-invariance and reliability of anticipatory postural adjustments in healthy young adults. Gait Posture 2020; 76:396-402. [PMID: 31931450 PMCID: PMC7028245 DOI: 10.1016/j.gaitpost.2020.01.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Revised: 12/04/2019] [Accepted: 01/03/2020] [Indexed: 02/02/2023]
Abstract
BACKGROUND Anticipatory postural adjustments (APAs) occur in the trunk during tasks such as rapid limb movement and are impaired in individuals with musculoskeletal and neurological dysfunction. To understand APA impairment, it is important to first determine if APAs can be measured reliably and which characteristics of APAs are task-invariant. RESEARCH QUESTION What is the test-retest reliability of latency, amplitude and muscle activation patterns (synergies) of trunk APAs during arm-raise and leg-raise tasks, and to what extent are these APA characteristics invariant across tasks at the individual and group levels? METHODS 15 young adults (mean age: 23.7 (±3.2) years) performed six trials of a rapid arm raise task in standing and a leg raise task in supine on two occasions. Latency, amplitude and coactivation of APAs in the erector spinae and external/internal oblique musculature were measured, and APA synergies were identified with principle components analysis. Test-retest reliability across the two sessions was calculated with intraclass correlation coefficients. Task-invariance was assessed at the individual level with correlation and at the group level with tests of equivalence. RESULTS Most variables demonstrated acceptable test-retest reliability. Synergies and many features of APA activation varied across tasks, although at the individual level, motor performance time and amplitude of lumbar erector spinae activation were significantly correlated across tasks. Average pre-motor reaction time, external oblique latency, contralateral oblique amplitude and internal oblique coactivation were equivalent across tasks. SIGNIFICANCE Characteristics of trunk muscle APAs quantified during a single task may not be representative of an anticipatory postural control strategy that generalizes across tasks. Therefore, APAs must be assessed during multiple tasks with varying biomechanical demands to adequately investigate mechanisms contributing to movement dysfunction. The reliability analysis in this study facilitates interpretation of group differences or changes in APA behavior in response to intervention for the selected tasks.
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Mangano GR, Valle MS, Casabona A, Vagnini A, Cioni M. Age-Related Changes in Mobility Evaluated by the Timed Up and Go Test Instrumented through a Single Sensor. SENSORS 2020; 20:s20030719. [PMID: 32012930 PMCID: PMC7038469 DOI: 10.3390/s20030719] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 01/24/2020] [Accepted: 01/25/2020] [Indexed: 01/04/2023]
Abstract
Mobility across people with a large range of age was evaluated, for the first time, by using an instrumented timed up and go test (iTUG) based on signals acquired by a single wearable inertial sensor. Eighty healthy participants, from childhood to old age, performed the test, covering walking distances of 3 m and 7 m. Total time, temporal, and velocity parameters of linear and turning subcomponents of the test were quantified. While children, adults, and senior adults exhibited similar values for all the parameters, older adults showed increases in duration and reductions in velocity during the turning phases when compared with the other groups. an increase in velocity was observed during mid turning when the test was performed along the longer distance. Similarity across children, adults, and senior adults indicates that healthy individuals develop the abilities performed in the iTUG early, while the slowing down shown during the turning phases by the older adults may reflect the need to implement adaptive adjustments to face changes of direction. These results emphasize the idea that reducing equipment to a single sensor provides an appropriate quantification when the iTUG is used to investigate a broader age range or different levels of complexity.
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Affiliation(s)
- Giulia R.A. Mangano
- Laboratory of Neuro-Biomechanics, Department of Biomedical and Biotechnological Sciences, School of Medicine, University of Catania, 95123 Catania, Italy (A.C.); (M.C.)
- Residency Program of Physical Medicine and Rehabilitation, Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy
| | - Maria S. Valle
- Laboratory of Neuro-Biomechanics, Department of Biomedical and Biotechnological Sciences, School of Medicine, University of Catania, 95123 Catania, Italy (A.C.); (M.C.)
- Correspondence: ; Tel.: +39-095-7381328
| | - Antonino Casabona
- Laboratory of Neuro-Biomechanics, Department of Biomedical and Biotechnological Sciences, School of Medicine, University of Catania, 95123 Catania, Italy (A.C.); (M.C.)
- Residency Program of Physical Medicine and Rehabilitation, Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy
| | | | - Matteo Cioni
- Laboratory of Neuro-Biomechanics, Department of Biomedical and Biotechnological Sciences, School of Medicine, University of Catania, 95123 Catania, Italy (A.C.); (M.C.)
- Residency Program of Physical Medicine and Rehabilitation, Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy
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