Longitudinal assessment of grip strength using bulb dynamometer in Duchenne Muscular Dystrophy



Título del documento: Longitudinal assessment of grip strength using bulb dynamometer in Duchenne Muscular Dystrophy
Revista: Brazilian journal of physical therapy
Base de datos: PERIÓDICA
Número de sistema: 000380160
ISSN: 1809-9246
Autores: 1
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Instituciones: 1Universidade de Sao Paulo, Faculdade de Medicina de Ribeirao Preto, Ribeirao Preto, Sao Paulo. Brasil
Año:
Periodo: May-Jun
Volumen: 18
Número: 3
Paginación: 245-251
País: Brasil
Idioma: Inglés
Tipo de documento: Estadística o encuesta
Enfoque: Analítico
Resumen en inglés Grip strength is used to infer functional status in several pathological conditions, and the hand dynamometer has been used to estimate performance in other areas. However, this relationship is controversial in neuromuscular diseases and studies with the bulb dynamometer comparing healthy children and children with Duchenne Muscular Dystrophy (DMD) are limited. Objective: The evolution of grip strength and the magnitude of weakness were examined in boys with DMD compared to healthy boys. The functional data of the DMD boys were correlated with grip strength. Method: Grip strength was recorded in 18 ambulant boys with DMD (Duchenne Group, DG) aged 4 to 13 years (mean 7.4±2.1) and 150 healthy volunteers (Control Group, CG) age-matched using a bulb dynamometer (North Coast- NC70154). The follow-up of the DG was 6 to 33 months (3-12 sessions), and functional performance was verified using the Vignos scale. Results: There was no difference between grip strength obtained by the dominant and non-dominant side for both groups. Grip strength increased in the CG with chronological age while the DG remained stable or decreased. The comparison between groups showed significant difference in grip strength, with CG values higher than DG values (confidence interval of 95%). In summary, there was an increment in the differences between the groups with increasing age. Participants with 24 months or more of follow-up showed a progression of weakness as well as maintained Vignos scores. Conclusions: The amplitude of weakness increased with age in the DG. The bulb dynamometer detected the progression of muscular weakness. Functional performance remained virtually unchanged in spite of the increase in weakness
Disciplinas: Medicina
Palabras clave: Diagnóstico,
Neurología,
Distrofia muscular de Duchenne,
Sistema musculoesquelético,
Fuerza muscular,
Dinamometría,
Agarre
Keyword: Medicine,
Diagnosis,
Neurology,
Duchenne muscular dystrophy,
Musculoskeletal system,
Muscular strength,
Dynamometry,
Grip
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