Alpha absolute power: motor learning of practical pistol shooting

Domingues, Clayton Amaral; Machado, Sérgio; Cavaleiro, Emerson Garcia; Furtado, Vernon; Cagy, Maurício; Ribeiro, Pedro; Piedade, Roberto

doi:10.1590/s0004-282x2008000300010

Cited by 19 publications

(13 citation statements)

References 26 publications

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“…Balance, sensory characteristics and vestibular system examinations get together as useful instruments in this investigation 6,8,10,24,26,27 . In sport shooting and similar modalities, as arch shooting, the posture examination has been approached for performance improvement, injury investigation and alterations associated with this class of sport 17,18,22,[28][29][30] . It must be highlighted that in these studies there is no standardization in the evaluations, and the vestibular system is not directly included in the exams when it should be.…”

Section: Discussionmentioning

confidence: 99%

Controle postural e sistema vestíbulo-oculomotor em atletas de tiro esportivo da modalidade pistola

Lourenço

Silva²

2013

Rev Bras Med Esporte

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INTRODUÇÃO: O tiro esportivo desenvolve nos atletas destreza, concentração e equilíbrio. A estabilidade do atirador depende da resistência deste contra perturbações internas e externas que afetem seu equilíbrio. OBJETIVO: Avaliar o controle postural e sistema vestíbulo-oculomotor de atletas atiradores de pistola. MÉTODO: Análise descritiva do tipo transversal. Avaliaram-se oito atletas com idade média de 37 anos (dp ± 8,11), afiliados à Confederação Brasileira de Tiro Esportivo. Utilizou-se prontuário sociodemográfico; estabilometria associada a simulador de tiro e sistema de videonistagmoscopia computadorizada. RESULTADOS: Observou-se em todos os voluntários, dominância motora à direita; metade deles atira com os dois olhos abertos; tempo médio de prática de 14 anos (dp ± 9) e média de treino semanal de 14 horas (dp ± 13). Metade relatou lesão associada ao tiro. Na estabilometria observou-se correlação nas velocidades anteroposterior e mediolateral.À videonistagmoscopia, nenhum atleta apresentou alteração patológica. CONCLUSÃO: O controle postural dos atletas avaliados possui alterações significativas para as velocidades de deslocamento do centro de pressão nas direções anteroposterior e mediolateral. O sistema vestíbulo-oculomotor não mostrou correlação com o controle postural e se apresentou sem alterações funcionais para todos os voluntários.

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Section: Discussionmentioning

confidence: 99%

Controle postural e sistema vestíbulo-oculomotor em atletas de tiro esportivo da modalidade pistola

Lourenço

Silva²

2013

Rev Bras Med Esporte

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“…Thus, we selected the electrodes P3, Pz and P4 for absolute power analysis and we divided alpha band in slow (8–10 Hz) and fast alpha (10–12 Hz). Absolute power was defined as the total energy intensity of an electrode on a certain region in the different frequency bands12 ) . For the sample size calculation, we considered women with intercostobrachialgia nerve pain receiving physical therapy.…”

Section: Methodsmentioning

confidence: 99%

Electrocortical Analysis of Patients with Intercostobrachial Pain Treated with TENS after Breast Cancer Surgery

Silva

Santana

Inocêncio³

et al. 2014

J Phys Ther Sci

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[Purpose] Among the physical therapeutic procedures to decrease pain, there is transcutaneous electrical neural stimulation (TENS). There is no consensus about its efficacy for oncological patients, especially for post-mastectomy pain and eletrocortical changes in somatosensory areas. The aim of this study was to analyze acute electrocortical changes after TENS treatment of patients with intercostobrachial post mastectomy pain. [Subjects] Eighteen patients were divided into acupuncture (A) and burst (B) group. [Methods] In this pre and post-intervention study each group was measured for EEG analysis in absulte power in alpha band (8–14 Hz). Outcomes variables were the alpha waveband in the sensorymotor cortex and pain pre-and-post TENS intervention. Data were analyzed using ANOVA to compare times (rest, 10 and 15 min), group and electrodes. Pain was analyzed using percentual pain evaluation (PPE) in both groups. [Results] Outcomes indicate main effects of time and electrodes because of slow (8–10 Hz) and fast alpha (10–12 Hz) wavebands decreased. PPE reduced 88.4% in A and 66.3% in G. [Conclusion] TENS promoted electrical modification in the parietal region and a decrease in pain. Future studies should investigate other wave must be proposed for other bands and use different methods of EEG analysis to elucidate the actual mechanisms behind the efficacy of TENS treatment.

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“…Examples include electroencephalography (EEG) (14)(15)(16)(17)(18)(19)(20)(21)(22)(23)(24), magnetoencephalography (MEG) (25), functional magnetic resonance imaging (fMRI) (26,27), functional infrared spectroscopy (fNIRS) (28,29), transcranial magnetic stimulation (TMS) (30,31) and transcranial direct-current stimulation (tDCS) (32).…”

Section: Introductionmentioning

confidence: 99%

“…One of these patterns is known as event-related desynchronization/event-related synchronization (ERD/ERS). ERD is a frequency-speci c power decrease mostly in alpha (8)(9)(10)(11)(12)(13) and beta (13)(14)(15)(16)(17)(18)(19)(20)(21)(22)(23)(24)(25)(26)(27)(28)(29)(30) frequency bands of EEG during the preparation of a movement until its onset which then increases after motor execution denoted by ERS (33). The other EEGderived pattern appears in a time-domain called movement-related cortical potential (MRCP).…”

Section: Introductionmentioning

confidence: 99%

Effect of Post-Stroke Motor Training on EEG Movement-Related Cortical Potentials

Butt

Naghdy

et al. 2020

Preprint

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BackgroundRehabilitation of post-stroke patients with motor impairments promotes re-learning of lost motor functions through the brain neuroplasticity. Monitoring of electroencephalogram (EEG) signals has the potential to show neuroplasticity changes that take place during motor training.MethodsIn this study, an EEG-derived time-domain pattern namely movement-related cortical potential (MRCP) was deployed to assess the effect of motor training in seven post-stroke patients. Patients were divided into two groups; group A comprising four subjects with supratentorial lesions and group B consisting of three subjects with infratentorial lesions. Both groups participated in motor training with an AMADEO hand rehabilitation device. During pre and post-training periods, EEG signals at eight selected electrodes were recorded. In addition, hand-kinematic parameters, and clinical tests were measured at the beginning and the end of all training sessions.ResultsThe negative peak of the MRCP signals decreased at all electrodes and reached significance in seven of eight electrodes for group A after 12 training sessions, while it was decreased at all electrodes and reached significance in two of eight electrodes for group B after 24 sessions according to paired t-test (p < 0.05). Moreover, these MRCP changes correlated with improvements in kinematic parameters and clinical test results for both groups.ConclusionsThis study shows that robot-assisted training that improves clinical outcomes is associated with MRCP pattern changes. Subjects with infratentorial strokes improved slower clinically compared to subjects with supratentorial strokes. This was consistent with the longer rehabilitation required for this group of patients to produce significant changes in MRCP. The reduction of negative peaks of the MRCP signal indicates that neurological pathways are established and less cortical resources are needed for motor tasks. This study demonstrates the significance of EEG as a practical and low-cost tool in detecting patterns associated with brain neuroplasticity in the course of motor re-learning. Ethics ApprovalThe procedures performed in this study were approved by the University of Wollongong Ethics Committee (Ethics application number: 2014/400) on 03/07/2017.

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Alpha absolute power: motor learning of practical pistol shooting

Cited by 19 publications

References 26 publications

Controle postural e sistema vestíbulo-oculomotor em atletas de tiro esportivo da modalidade pistola

Controle postural e sistema vestíbulo-oculomotor em atletas de tiro esportivo da modalidade pistola

Electrocortical Analysis of Patients with Intercostobrachial Pain Treated with TENS after Breast Cancer Surgery

Effect of Post-Stroke Motor Training on EEG Movement-Related Cortical Potentials

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