Altered corticomuscular coherence elicited by paced isotonic contractions in individuals with cerebral palsy: A case-control study

Riquelme, Inmaculada; Cifré, Ignacio; Muñoz, Miguel A.; Montoya, Pedro

doi:10.1016/j.jelekin.2014.07.004

Cited by 9 publications

(8 citation statements)

References 52 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It has been reported that stroke can significantly decreases the magnitude of beta corticomuscular coherence on the affected side [ 81 ] and shift the location of maximum beta corticomuscular coherence away from the expected location: contralateral sensorimotor cortex [ 82 ]. Cerebral palsy has been associated with increased magnitude of beta corticomuscular coherence [ 83 ]. We did not observe such phenomena in PD.…”

Section: Discussionmentioning

confidence: 99%

“…The main discrepancies are in the experimental task and pathophysiology. The studies on stroke used sustained wrist extension or a gripping task with visual feedback of force production [ 81 , 82 ], and the study on cerebral palsy used externally-cued ballistic hand movements [ 83 ]. In the stroke studies, only a small percentage of participants (2 of 6 participants or 3 of 25 participants) showed lesions in the basal ganglia [ 81 , 82 ].…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Dynamic cortical participation during bilateral, cyclical ankle movements: Effects of Parkinson’s disease

et al. 2018

View full text Add to dashboard Cite

Parkinson’s disease (PD) is known to increase asymmetry and variability of bilateral movements. However, the mechanisms of such abnormalities are not fully understood. Here, we aimed to investigate whether kinematic abnormalities are related to cortical participation during bilateral, cyclical ankle movements, which required i) maintenance of a specific frequency and ii) bilateral coordination of the lower limbs in an anti-phasic manner. We analyzed electroencephalographic and electromyographic signals from nine men with PD and nine aged-matched healthy men while they sat and cyclically dorsi- and plantarflexed their feet. This movement was performed at a similar cadence to normal walking under two conditions: i) self-paced and ii) externally paced by a metronome. Participants with PD exhibited reduced range of motion and more variable bilateral coordination. However, participants with and without PD did not differ in the magnitude of corticomuscular coherence between the midline cortical areas and tibialis anterior and medial gastrocnemius muscles. This finding suggests that either the kinematic abnormalities were related to processes outside linear corticomuscular communication or PD-related changes in neural correlates maintained corticomuscular communication but not motor performance.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Dynamic cortical participation during bilateral, cyclical ankle movements: Effects of Parkinson’s disease

et al. 2018

View full text Add to dashboard Cite

show abstract

“…Mima et al (2001) and Fang et al (2009) pointed that the functional coupling between cortex commands and corresponding muscular activities of stroke subjects was weaker than healthy subjects. Riquelme et al (2014) investigated CMC during planning and execution of isotonic contractions in cerebral palsy (CP) patients and healthy subjects. The result showed that CP patients group displayed longer EMG onset latency and duration than healthy group and CMC in beta band of EEG was overall greater in CP than that in healthy controls.…”

Section: Factors Affecting Cmcmentioning

confidence: 99%

“…Many researches indicated CP influenced the normal muscular activities such as reduced voluntary-contraction force (Barber et al, 2012; Braendvik and Roeleveld, 2012; De et al, 2012). Riquelme et al (2014) compared CMC during planning and execution of hand movements in CP patients and healthy subjects. From the results, CP patients were characterized by an altered functional coupling through CMC analysis and CMC may consider as a tool for exploring deficits during early brain damage.…”

Section: Cmc Applicationsmentioning

confidence: 99%

Corticomuscular Coherence and Its Applications: A Review

Liu

Sheng

Liu

2019

Front. Hum. Neurosci.

110

100

View full text Add to dashboard Cite

Corticomuscular coherence (CMC) is an index utilized to indicate coherence between brain motor cortex and associated body muscles, conventionally. As an index of functional connections between the cortex and muscles, CMC research is the focus of neurophysiology in recent years. Although CMC has been extensively studied in healthy subjects and sports disorders, the purpose of its applications is still ambiguous, and the magnitude of CMC varies among individuals. Here, we aim to investigate factors that modulate the variation of CMC amplitude and compare significant CMC between these factors to find a well-developed research prospect. In the present review, we discuss the mechanism of CMC and propose a general definition of CMC. Factors affecting CMC are also summarized as follows: experimental design, band frequencies and force levels, age correlation, and difference between healthy controls and patients. In addition, we provide a detailed overview of the current CMC applications for various motor disorders. Further recognition of the factors affecting CMC amplitude can clarify the physiological mechanism and is beneficial to the implementation of CMC clinical methods.

show abstract

“…In such cases, there are changes in muscle tone, as well as inadequate recruitment of motor units to generate reaction force suited to the loads imposed on the skeleton 28 . Thus, there is a limitation of this study, which was the use of healthy animals, not subjected to brain injury models.…”

Section: Discussionmentioning

confidence: 99%

Avaliação dos ligamentos longitudinais da coluna de ratos Wistar em modelo experimental da terapia Suit

et al. 2016

View full text Add to dashboard Cite

| Ligaments adapt according to the intensity of physical activity and mechanical load to which they are subjected. In the last decade there have been methods and protocols in the field of infant neurofunctional physiotherapy, which have the term "suit" in common, to characterize the existence of suits with adjustable elastic bands and the possibility of applying load on the human skeleton. Since the mechanical load can produce fibrocartilaginous changes on the ligaments and also that no studies evaluating the effect of suit therapy on ligaments of the spine were found, research with experimental methods of load are justified. The aim of this study was to analyze thickness and morphology of longitudinal ligaments of the spine of Wistar rats when subjected to mechanical load by vertebral compression. Thirty animals were separated into five groups (G1 -control; G2 -simulation of the use of suit; G3, G4, and G5 -maintenance of the suit). The suit experimental model, in G4 and G5, were adapted weights or elastic bands arranged in "X" for 50% of spinal overload of the weight of the animal, who remained with the suit for 40 hours over four weeks of experiment, five days a week.There were no significant differences for thickness, and morphological changes of longitudinal ligaments were also not observed. We concluded that there were no changes in longitudinal ligaments of the spine in animals subjected to the experimental model of suit therapy. RESUMEN | Pueden adaptarse los ligamentos a la intensidad de la actividad física y a la carga mecánica sometida a ellos. En la última década, han surgido métodos y protocolos en el área de fisioterapia neurofuncional infantil que tienen en común el término "suit" para caracterizar la existencia de ropas con bandas elásticas ajustables y la posibilidad de aplicación de cargas en el esqueleto humano. Debido a que la carga mecánica puede producir alteraciones fibrocartilaginosas en los ligamentos y que no han sido encontrados estudios que evaluaron el efecto de la terapia suit en los ligamentos de la columna vertebral, las investigaciones con métodos experimentales de carga son necesarias. Este estudio tiene el propósito de evaluar las espesuras y la morfología de los ligamentos longitudinales de la columna vertebral de ratas Wistar cuando sometida a carga mecánica por compresión vertebral. Se dividieron treinta ratas en cinco grupos (G1 -grupo control; G2 -simulación de la utilización del suit; G3, G4, G5 -mantenimiento de la ropa).Desde el modelo experimental del suit, en el G4 y G5 se adaptaron pesos o elásticos puestos en "X" para la sobrecarga vertebral de 50% del peso de los animales, los cuales permanecieron con la ropa durante cuarenta horas, al largo de cuatro semanas de experimento, en cinco días semanales. No fueron observadas diferencias significativas para la espesura, tampoco cambios morfológicos en los ligamentos longitudinales. Se concluye que no se observaron alteraciones en los ligamentos longitudinales de la columna vertebral de los animales sometidos al ...

show abstract

Altered corticomuscular coherence elicited by paced isotonic contractions in individuals with cerebral palsy: A case-control study

Cited by 9 publications

References 52 publications

Dynamic cortical participation during bilateral, cyclical ankle movements: Effects of Parkinson’s disease

Dynamic cortical participation during bilateral, cyclical ankle movements: Effects of Parkinson’s disease

Corticomuscular Coherence and Its Applications: A Review

Avaliação dos ligamentos longitudinais da coluna de ratos Wistar em modelo experimental da terapia Suit

Contact Info

Product

Resources

About