Reliability of Shoulder Helical Axes During Intransitive and Transitive Upper Limb Tasks.
J Appl Biomech
; 39(6): 440-445, 2023 Dec 01.
Article
en En
| MEDLINE
| ID: mdl-37770061
ABSTRACT
Shoulder complex stability can be estimated in vivo through the analysis of helical axes (HAs) dispersion during upper limb movements. The study aimed at investigating test-retest reliability of shoulder HAs dispersion parameters during upper limb tasks. Twenty healthy volunteers performed 2 intransitive (shoulder flexion and rotation) and one transitive (combing) tasks with the dominant and nondominant upper limbs during 2 recording sessions at 1-week distance. Kinematics was detected through an optoelectronic system. Mean distance and mean angle (MA) were adopted as HAs dispersion indexes. Reliability was excellent for mean distance (intraclass correlation coefficient [ICC] .91) and MA (ICC .92) during dominant flexion, and good for MA (ICC .90) during nondominant flexion. Moderate reliability was found for HAs parameters during rotation (ICCs from .70 to .59), except for MA during dominant rotation where reliability was poor. Reliability was good for mean distance (ICC .83) and moderate for MA (ICC .67) during the dominant combing task, whereas no reliability was found during the nondominant combing task. HAs dispersion parameters revealed high reliability during simple intransitive tasks with the dominant limb. Reliability decreased with the increase in task complexity due to the increase in movement variability. HAs dispersion technique could be used to assess shoulder complex stability in patients after rehabilitation or surgery.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Hombro
/
Articulación del Hombro
Límite:
Humans
Idioma:
En
Revista:
J Appl Biomech
Año:
2023
Tipo del documento:
Article
País de afiliación:
Italia