Comparison of the SCoRE and HA methods for locating in vivo the glenohumeral joint centre - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Journal of Biomechanics Année : 2007

Comparison of the SCoRE and HA methods for locating in vivo the glenohumeral joint centre

Résumé

A recent paper has described a new functional method, the symmetrical centre of rotation (SCoRE), for locating joint centre position [Ehrig, R.M., Taylor, W.R., Duda, G.N., Heller, M.O., 2007. A survey of formal methods for determining the centre of rotation of ball joints. Journal of Biomechanics, In Press]. For in vitro analyses, the SCoRE method showed better precision and accuracy than helical axis (HA) or sphere fitting methods. Despites HA determination is very sensitive to small angular velocity, the International Society of Biomechanics has recommended to use HA for locating the glenohumeral joint centre. This paper aims at comparing the SCoRE method with the HA method for locating in vivo the glenohumeral joint centre according to the movement characteristics. Nine subjects performed ten cycles of three different movements at two different velocities. For each test (combination of movements) the location of the centre of rotation was estimated with both methods (SCoRE and HA). Analyses focused on the 3D location of the glenohumeral joint centre and on the precision (standard deviation). This study showed that SCoRE and HA methods yield the same GH location. Furthermore this paper evidenced that the SCoRE method was more precise than HA method (1.7~mm versus 2.6 mm) and that the GH location with the SCoRE method was not affected by movements with slow velocities.

Dates et versions

hal-00239347 , version 1 (05-02-2008)

Identifiants

Citer

Tony Monnet, Eric Desailly, Mickael Begon, Claude Vallee, Patrick Lacouture. Comparison of the SCoRE and HA methods for locating in vivo the glenohumeral joint centre. Journal of Biomechanics, 2007, 40 (15), pp.3487-3492. ⟨10.1016/j.jbiomech.2007.05.030⟩. ⟨hal-00239347⟩

Collections

CNRS UNIV-POITIERS
60 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More