SciELO - Scientific Electronic Library Online

 
vol.10 número1Modelo 3D para quantificação das forças articulares e momentos proximais resultantes para o membro superior índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Servicios Personalizados

Revista

Articulo

Indicadores

Links relacionados

  • No hay articulos similaresSimilares en SciELO

Compartir


Revista Portuguesa de Ciências do Desporto

versión impresa ISSN 1645-0523

Resumen

RIBEIRO, Daniel Cury et al. Analysis of the joint reaction forces during different shoulder movements with and without external load: a preliminary study. Rev. Port. Cien. Desp. [online]. 2010, vol.10, n.1, pp.129-136. ISSN 1645-0523.

Link segment models are extremely useful for increasing the comprehension of joint overload. The aim of the present study was to analyze proximal joint reaction forces and moments during different movements performed with and without external load. One subject performed shoulder flexion, extension and abduction, and elbow flexion movements (with and without external load) Kinematic data were obtained by videogrammetry (frequency sample 50 fields/s). One link segment model was used to obtain kinetic data. The model is governed by Newton/Euler movement equations. The results suggested a not proportional increasing of proximal joint reaction forces and moments. The proximal joint reaction force longitudinal component was the only one that increased proportionally to the external load. Proximal joint reaction force shearing components and proximal moments presented increasing values of different magnitudes. The use of external load promoted increased magnitudes of proximal joint reaction force and moment, although it was not proportional. Proximal joint reaction force and moment are influenced in different ways by the external load. This suggests the need of a strict control of the prescribed exercises for different shoulder dysfunctions.

Palabras clave : shoulder; force; kinetics; torque.

        · resumen en Portugués     · texto en Portugués     · Portugués ( pdf )