A new method of administering the Grooved Pegboard Test: Performance as a function of handedness and sex

Bryden, Pamela J.; Roy, Éric

doi:10.1016/j.bandc.2004.12.004

Cited by 147 publications

(112 citation statements)

References 18 publications

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“…Surprisingly, the results of this study contrast with those of Briden and Roy 45 who revealed performance differences between the sexes during removal/placement of pegs. However, some confounding variables such as menopause status and menstrual cycle phase that can promote changes in woman physiology and further influence motor control response of elderly women was not controlled in our study.…”

Section: Discussioncontrasting

confidence: 99%

“…The GPT, originally, involves the analysis of the placement of small shaped key-pegs which must be oriented correctly to fit in a hole with a random orientation. Assessing the withdrawal of these pegs, Bryden and Roy 45 suggested that we can discriminate measures of visuomotor amplitude (placement) to a simple measurement of motor speed (withdrawal). However, since GPT measures how quickly the 25 pegs are placed and withdrawn, it could be argued that these tasks, in fact, cover a hybrid control phase, which consist of both initial impulse and current control phases, although the current control is more robust in the placement task as it demands more accuracy from the participant 28 .…”

Section: Discussionmentioning

confidence: 99%

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Motor control assessment of community-dwelling older adults with depressive symptoms

Bicalho

Albuquerque

Paula

et al. 2017

Motriz: rev. educ. fis.

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-Aims:The purpose of this study was to investigate how depressive symptoms mediate different motor control requirements in elderlies and to assess the concurring effects fomented by the interaction between aging and depressive symptoms, providing indirect measures of brain functionality. Methods: Sixty-eight elderlies were paired in terms of age and gender and were equally distributed into depressed and nondepressed groups, according to their score on the Beck Depression Questionnaire. The participants performed the Grooved Pegboard Test placing and withdrawing pegs while execution time and error rate were measured. Results: This investigation revealed that depressive symptoms exert a broad effect upon motor control, although that the symptom intensity, as well as the interaction between aging and depression intensity, were exclusively correlated with withdrawal task, suggesting that there is a greater effect upon motor acts with higher frontal lobe requirements. Conclusion: The discrimination of motor control aspects provides a valuable contribution for the understanding of the underlying neurophysiology of the interaction between aging and depression as it represents an indirect measure of cerebral dysfunction. Further, these findings may still have clinical implications, as they can promote more rational approaches to the elaboration of preventive measures that help maintain the functional capability of depressed elderlies.

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Section: Discussioncontrasting

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Motor control assessment of community-dwelling older adults with depressive symptoms

Bicalho

Albuquerque

Paula

et al. 2017

Motriz: rev. educ. fis.

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“…We expected the standardized activities to function differently based on user characteristics because this was reported in studies using other performance tests. There have been significant differences between males and females [9] and between dominant and nondominant sides [27][28]. However, none of the standardized activities in our study favored a particular prosthetic side or sex.…”

Section: Discussioncontrasting

confidence: 63%

Influence of standardized activities on validity of Assessment of Capacity for Myoelectric Control

2013

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Abstract-The Assessment of Capacity for Myoelectric Control (ACMC) is an observation-based clinical tool that evaluates ability to control a myoelectric prosthetic hand during bimanual activities. Two validity aspects were investigated: potential bias interaction between prosthesis users and activities performed during assessment, and potential bias interaction between activities and different user characteristics (sex or prosthetic side). Six activities were standardized for the ACMC. Upper-limb myoelectric prosthesis users (47 congenital, 11 acquired; 31 male, 27 female, average age 19.9 yr) performed three standardized activities, each on one occasion. Bias-interaction analysis in the many-facet Rasch model identified inconsistent patterns in the interactions of individual users and activity facets and between activities and user characteristics. The standardized activities had no significant influence on measures of user ability. The activities functioned similarly across both sexes (p-value greater than or equal to 0.12) and across both prosthetic sides in persons with upper-limb reduction deficiency (p-value greater than or equal to 0.50) and persons with acquired amputation (p-value greater than or equal to 0.13). The results provide evidence for the validity of the ACMC across the standardized activities and support use of the ACMC in prosthesis users of both sexes and prosthetic sides. The newly standardized activities are recommended for future ACMC use.

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“…É frequente a observação de assimetria de desempenho na tarefa do Grooved Pegboard em diferentes populações e condições experimentais 24,25 . Nossos resultados indicaram que independente da condição experimental, a assimetria foi mantida com menor tempo de movimento para a mão direita.…”

Section: Discussionunclassified

Transcranial Direct Current Stimulation and Manual Asymmetries: The Effect of the Stimulation on the Manual Dexterity

et al. 2017

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RESUMOO objetivo foi avaliar os efeitos da estimulação transcraniana por corrente contínua (ETCC) sobre o córtex motor primário (M1) nas assimetrias de desempenho manual em uma tarefa de destreza manual. A amostra foi composta por 28 voluntários, destros, do sexo masculino e sem comprometimento neurológico. A tarefa (Grooved Pegboard) consistiu em encaixar 25 pinos em 25 receptáculos, o mais rápido possível. A tarefa foi executada no pré-teste com ambas as mãos para definição do nível de assimetria manual. Uma semana após o pré-teste foi aplicado a ETCC ou placebo, em seguida os sujeitos foram avaliados no pós-teste. Os resultados revelaram que os efeitos da ETCC no M1 não foram capazes de diminuir as assimetrias manuais em uma tarefa de destreza manual em sujeitos destros. Entretanto, somente o grupo ETCC melhorou o desempenho do pré-teste para o pós-teste (p<0,05) em ambas as mãos. A estimulação do M1 direito pode ter gerado benefícios no M1 contralateral. Palavras-chave: Destreza motora. Estimulação elétrica. Lateralidade funcional. ABSTRACTThe aim of this study was to evaluate the effect of transcranial direct-current stimulation (tDCS) on the primary motor cortex (M1) in the manual performance asymmetries in a manual dexterity tasks. The sample consisted of 28 volunteers, righthanded, men and without neurological impairment. The task (Grooved Pegboard) consisted of inserting 25 pins in 25 receptacles, as soon as possible. The task was executed in the pretest with both hands to define the level of manual asymmetry. tDCS or Sham were applied a week after the pretest, then the subjects were evaluated in the post-test. The results revealed that the effects of tDCS in M1 did not reduce asymmetries in a manual dexterity task. However, only the tDCS group improved the performance from pretest to the posttest (p <0.05) in both hands. Stimulation of the right M1 may have generated benefits in the contralateral M1. Keywords: Motor dexterity. Electrical stimulation. Functional laterality. IntroduçãoA Estimulação Transcraniana por Corrente Contínua (ETCC) consiste em uma técnica de modulação cortical não invasiva e indolor, que, através da aplicação de corrente contínua de baixa intensidade sobre o escalpo, é capaz de modular a excitabilidade cortical [1][2][3] . Embora os mecanismos de plasticidade neural relacionados à ETCC ainda não estejam totalmente esclarecidos, destaca-se como principal mecanismo a mudança da excitabilidade das células corticais estimuladas, sendo que a estimulação via ânodo (eletrodo positivo) leva a uma hiperpolarização dos dendritos, uma despolarização do corpo da célula (soma) e a estimulação via cátodo (eletrodo negativo) a uma despolarização dos dendritos e uma hiperpolarização do corpo celular (soma) [3][4][5] . Na literatura tem sido encontrado benefícios da ETCC na diminuição do desejo de consumo de álcool 6 , cigarros 7 , em doenças psiquiátricas 8 , em pacientes com acidente vascular cerebral 9 e com Parkinson 10 e na melhora do controle motor 11,12 . Em relação ao controle

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A new method of administering the Grooved Pegboard Test: Performance as a function of handedness and sex

Cited by 147 publications

References 18 publications

Motor control assessment of community-dwelling older adults with depressive symptoms

Motor control assessment of community-dwelling older adults with depressive symptoms

Influence of standardized activities on validity of Assessment of Capacity for Myoelectric Control

Transcranial Direct Current Stimulation and Manual Asymmetries: The Effect of the Stimulation on the Manual Dexterity

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