scholarly journals Relationship Between Motor Capacity of the Contralesional and Ipsilesional Hand Depends on the Side of Stroke

2019 ◽  
Author(s):  
Rini Varghese ◽  
Carolee J. Winstein
Keyword(s):  
Regression Analysis ◽  
Left Hemisphere ◽  
Motor Function ◽  
Right Hemisphere ◽  
Stroke Survivors ◽  
Considerable Evidence ◽  
Right Hemisphere Damage ◽  
Function Test ◽  
Wolf Motor Function Test ◽  
The Relationship

AbstractThere is considerable evidence that after a stroke, ipsilesional deficits increase as contralesional impairment increases. Here, we asked if the relationship between the motor capacities of the two limbs differs based on the side of stroke. Forty-two pre-morbidly right-handed chronic stroke survivors (left hemisphere damage, LHD = 21) with mild-to-moderate paresis performed distal items of the Wolf Motor Function Test (dWMFT). We found that compared to RHD, the relationship between contralesional arm impairment (Upper Extremity Fugl-Meyer, UEFM) and ipsilesional hand motor capacity was stronger (R2LHD= 0.42; R2RHD < 0.01; z = 2.12; p = 0.03) and the slope was steeper (t = −2.03; p = 0.04) in LHD. Similarly, the relationship between contralesional dWMFT and ipsilesional hand motor capacity was stronger (R2LHD= 0.65; R2RHD= 0.09; z = 2.45; p = 0.01) and the slope was steeper (t = 2.03; p = 0.04) in LHD compared to RHD. Multiple regression analysis confirmed the presence of an interaction between contralesional UEFM and side of stroke (β3= 0.66 ± 0.30; p = 0.024) but only trended towards significance for the interaction between contralesional dWMFT and side of stroke (β3= −0.51 ± 0.34; p = 0.05). Results were confirmed after removal of potential outliers. Our findings suggest that the relationship between contra- and ipsi-lesional motor capacity depends on the side of stroke, such that the inter-limb relationship is stronger for stroke survivors with left hemisphere damage compared to those with right hemisphere damage.

scholarly journals Motor Deficits in the Ipsilesional Arm of Severely Paretic Stroke Survivors Correlate With Functional Independence in Left, but Not Right Hemisphere Damage

2020 ◽  
Vol 14 ◽  
Author(s):  
Shanie A. L. Jayasinghe ◽  
David Good ◽  
David A. Wagstaff ◽  
Carolee Winstein ◽  
Robert L. Sainburg
Keyword(s):  
Motor Control ◽  
Grip Strength ◽  
Left Hemisphere ◽  
Motor Performance ◽  
Right Hemisphere ◽  
Functional Independence ◽  
Chronic Stroke ◽  
Motor Deficits ◽  
Stroke Survivors ◽  
Right Hemisphere Damage

Chronic stroke survivors with severe contralesional arm paresis face numerous challenges to performing activities of daily living, which largely rely on the use of the less-affected ipsilesional arm. While use of the ipsilesional arm is often encouraged as a compensatory strategy in rehabilitation, substantial evidence indicates that motor control deficits in this arm can be functionally limiting, suggesting a role for remediation of this arm. Previous research has indicated that the nature of ipsilesional motor control deficits vary with hemisphere of damage and with the severity of contralesional paresis. Thus, in order to design rehabilitation that accounts for these deficits in promoting function, it is critical to understand the relative contributions of both ipsilesional and contralesional arm motor deficits to functional independence in stroke survivors with severe contralesional paresis. We now examine motor deficits in each arm of severely paretic chronic stroke survivors with unilateral damage (10 left-, 10 right-hemisphere damaged individuals) to determine whether hemisphere-dependent deficits are correlated with functional independence. Clinical evaluation of contralesional, paretic arm impairment was conducted with the upper extremity portion of the Fugl-Meyer assessment (UEFM). Ipsilesional arm motor performance was evaluated using the Jebsen-Taylor Hand Function Test (JTHFT), grip strength, and ipsilesional high-resolution kinematic analysis during a visually targeted reaching task. Functional independence was measured with the Barthel Index. Functional independence was better correlated with ipsilesional than contralesional arm motor performance in the left hemisphere damage group [JTHFT: [r(10) = −0.73, p = 0.017]; grip strength: [r(10) = 0.64, p = 0.047]], and by contralesional arm impairment in the right hemisphere damage group [UEFM: [r(10) = 0.66, p = 0.040]]. Ipsilesional arm kinematics were correlated with functional independence in the left hemisphere damage group only. Examination of hemisphere-dependent motor correlates of functional independence showed that ipsilesional arm deficits were important in determining functional outcomes in individuals with left hemisphere damage only, suggesting that functional independence in right hemisphere damaged participants was affected by other factors.

Efeitos da terapia por contensão induzida nas lesões encefálicas adquiridas

2016 ◽  
Vol 17 (1) ◽  
pp. 30
Author(s):  
Gabriela Da Silva Matuti ◽  
Rafaela Do Nascimento Borges Marques ◽  
Amanda Conte Magesto ◽  
Rafael Eras Garcia ◽  
Clarissa Barros De Oliveira
Keyword(s):  
Motor Activity ◽  
Motor Function ◽  
Function Test ◽  
Wolf Motor Function Test

Introdução: A Terapia por Contensão Induzida (TCI) é uma técnica de reabilitação que tem como objetivo melhora da função do membro superior.acometido. Objetivos: Determinar se o protocolo da TCI é adequado para a reabilitação do membro superior em adultos com Lesões Encefálicas Adquiridas (LEA), analisar a manutenção dos resultados e identificar possíveis preditores de eficácia da técnica. Método: Estudo retrospectivo, 40 pacientes. As escalas utilizadas foram Motor Activity Log (MAL), Quantidade (QT) e Qualidade (QL) de movimento do membro superior acometido e Wolf Motor Function Test (WMFT). Resultados e discussão: As médias de QT e QL do membro superior acometido no pré e pós-tratamento tiveram um aumento significativo (p < 0,001), enquanto as do WMFT apresentaram uma redução significativa do tempo (p < 0,001), o que representa uma melhora na habilidade motora e maior uso fora do ambiente terapêutico. Os ganhos foram mantidos após 12 meses do término do protocolo, e não foi evidenciado nenhum preditor de evolução. Conclusão: A TCI demonstrou eficácia na melhora da habilidade motora e reversão do não uso aprendido do membro superior acometido, estes resultados foram mantidos após um ano da intervenção. Não foi evidenciado no estudo nenhum fator preditor de eficácia da técnica.Palavras-chave: lesões encefálicas adquiridas, hemiplegia, terapia por contensão induzida, reabilitação.

scholarly journals Translation, cultural adaptation and reliability of the brazilian version of the Graded Wolf Motor Function Test in adults with severe hemiparesis

2015 ◽  
Vol 28 (4) ◽  
pp. 667-676 ◽  
Author(s):  
Natalia Duarte Pereira ◽  
Luciane Vieira ◽  
Fernanda Priscila Pompeu ◽  
Isabella De Souza Menezes ◽  
Sarah Monteiro Dos Anjos ◽  
...  
Keyword(s):  
Motor Function ◽  
Cultural Adaptation ◽  
Motor Impairment ◽  
Correlation Coefficients ◽  
Rater Reliability ◽  
Brazilian Version ◽  
Function Test ◽  
Wolf Motor Function Test ◽  
Quality Of Movement ◽  
Upper Extremity Motor Impairment

Abstract Introduction : The Graded Wolf Motor Function Test (GWMFT) was developed as a modification of the Wolf Motor Function Test (WMFT), designed to address moderate-to-severe upper-extremity motor impairment, consequent to a stroke or brain injury, by combining time and quality of movement measures in both isolated movements and functional tasks. Objectives : To translate and adapt the GWMFT form and instructions manual to Brazilian Portuguese and evaluate the inter-rater reliability. Materials and methods : Ten individuals, mean age 53.2 ± 11.39 (range: 28-72) years and a mean time since stroke onset of 82.5 ± 85.83 (16-288) months participated in the study. After translation and cultural adaptation, two independent evaluators, based on the instructions manual information, administered GWMFT. Video observations were used to rate the time and the compensatory movements in the Functional Ability Scale (FAS). Intra-class Correlation Coefficients (ICCs) and Bland-Altman plots were calculated to examine the inter-rater reliability for performance time and FAS. Results : The translated and adapted version obtained a total ICC inter-rater time 0.99 (0.95-1.00), showing less reliability in the task of lifting a pen, with ICC = 0.71 (- 0.15-0.93). The ICC of the total FAS was 0.98 (0.92-0.99) and the task of elbow extension has shown the lowest ICC rate = 0.83 (0.31-0.96). Conclusion : The GWMFT scale reliability proved to be appropriate to evaluate the paretic upper limb in individuals with chronic hemiparesis post severe stroke.

scholarly journals Visuospatial Attention and the Split Brain

Physiology ◽  
1997 ◽  
Vol 12 (5) ◽  
pp. 226-231
Author(s):  
G Berlucchi ◽  
GR Mangun ◽  
MS Gazzaniga
Keyword(s):  
Visual Field ◽  
Left Hemisphere ◽  
Right Hemisphere ◽  
Visuospatial Attention ◽  
Attentional Biases ◽  
Split Brain ◽  
Right Hemisphere Damage ◽  
Entire Visual Field ◽  
The Right

In callosotomy patients, the right hemisphere attends to the entire visual field, whereas the left hemisphere attends to the right field only. The occurence of rightward attentional biases, simulating a hemineglect from right hemisphere damage, suggests that in these patients visuospatial attention tends to be controlled by the left hemisphere.

Evidence of altered dominance in children with congenital spastic hemiplegia

1995 ◽  
Vol 1 (3) ◽  
pp. 261-270 ◽  
Author(s):  
Marit Korkman ◽  
Lennart von Wendt
Keyword(s):  
Brain Damage ◽  
Left Hemisphere ◽  
Neuropsychological Tests ◽  
Right Hemisphere ◽  
Individual Variability ◽  
Right Hemisphere Damage ◽  
Spastic Hemiplegia ◽  
Ear Advantage ◽  
The Right ◽  
High Degree

AbstractThe study aimed at investigating lateralization effects and signs of transfer and crowding in children with congenital lateralized brain damage with the aid of a dichotic listening test, a chimeric test, and verbal and nonverbal neuropsychological tests. Thirty-three children with spastic hemiplegia and 86 control children (age 5.0–12.0 yr) were assessed. Children with left-hemisphere damage (n = 17) were found to have a pathological left-ear advantage for verbal material, and children with right-hemisphere damage (n = 16) were found to have a pathological right visual half-field advantage for visual material. Children with left-hemisphere damage and a left-ear advantage on the dichotic test were also found to have a right visual half-field advantage on the chimeric test, which was regarded as a sign of reversed dominance. No verbal or nonverbal differences emerged between the left-hemisphere and the right-hemisphere damage groups, nor did differences emerge when the children were reclassified by considering children with left-hemisphere damage and signs of reversed dominance as having damage to the nondominant hemisphere. It was concluded that although lateralized brain damage may alter the dominance for verbal and visual functions, there is still considerable inter-individual variability with respect to inter- and intrahemispheric neural adjustment to damage. The dichotic and the chimeric tests did not indicate the presence of brain damage accurately, but they indicated the lateralization of damage in children with stated abnormality with a high degree (91.3%) of accuracy. (JINS, 1995, I, 261–270.)

Phrase comprehension after brain damage

1982 ◽  
Vol 3 (3) ◽  
pp. 263-278 ◽  
Author(s):  
Rita Sloan Berndt ◽  
Alfonso Caramazza
Keyword(s):  
Brain Damage ◽  
Left Hemisphere ◽  
Language Comprehension ◽  
Right Hemisphere ◽  
The Other ◽  
Right Hemisphere Damage ◽  
Dimensional Adjectives ◽  
Neurologically Normal ◽  
The Right

ABSTRACTComprehension of six dimensional adjectives was found to be intact in groups of left hemisphere-damaged, right hemisphere-damaged and neurologically normal patients. Phrases with those adjectives were interpreted quite differently by left hemisphere-damaged patients than by the other two groups, and a subgroup of left-damaged patients appeared to be responsible for that group's deviant responses to phrases such as slightly bigger. All patients in the left-damaged group had some difficulty with negative phrases such as not big, however. Patients with right hemisphere-damage had difficulty interpreting only negative phrases with small. Results are interpreted with reference to Luria's discussion of semantic aphasia, and with regard to recent findings concerning the role of the right hemisphere in language comprehension.

scholarly journals Wolf Motor Function Test for Characterizing Moderate to Severe Hemiparesis in Stroke Patients

2012 ◽  
Vol 93 (11) ◽  
pp. 1963-1967 ◽  
Author(s):  
Timea M. Hodics ◽  
Kyle Nakatsuka ◽  
Bhim Upreti ◽  
Arun Alex ◽  
Patricia S. Smith ◽  
...  
Keyword(s):  
Motor Function ◽  
Stroke Patients ◽  
Function Test ◽  
Wolf Motor Function Test

Acquisition and Retention of Motor Skills as a Function of Age and Aerobic Fitness

2001 ◽  
Vol 9 (4) ◽  
pp. 425-437 ◽  
Author(s):  
Jennifer L Etnier ◽  
Diana H. Romero ◽  
Tinna Traustadóttir
Keyword(s):  
Older Adults ◽  
Cognitive Ability ◽  
Left Hemisphere ◽  
Motor Skills ◽  
Aerobic Fitness ◽  
Right Hemisphere ◽  
Brain Activity ◽  
Relative Increase ◽  
Relative Decrease ◽  
The Relationship

Evidence suggests that cognitive ability declines with advancing age but that aerobic fitness can serve to minimize or even negate these declines. The purpose of this study was to examine the relationship between age, fitness, and retention. Twenty younger (M=24.2 years) and 18 older adults (M=66.6 years) practiced on the mirror star trace until they achieved a criterion. VO2max was measured. The number of trials required to reach criterion was predicted by VO2max, p < .001. and age, p < .02. Retention distance was also predicted by VO2max, p < .001, and age, p < .001. Analysis of relative alpha change at P3 and F4 indicated that a relative increase in left-hemisphere alpha and a relative decrease in right-hemisphere alpha were associated with retention errors. Thus, older and less aerobically fit adults required more trials to reach criterion and performed less well at retention, and changes in brain activity were associated with retention errors.

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