title: Joint position sense is not altered during shoulder medial and lateral rotations in female assembly line workers with shoulder impingement syndrome.
abstract: This study evaluated joint position sense (JPS) during medial and lateral rotations of the shoulder in female workers with and without shoulder impingement syndrome (SIS). Three groups were assessed. The case group consisted of 15 female assembly line workers (35.5, SD 5.8 years) with unilateral SIS. Control group 1 consisted of 15 female assembly line workers asymptomatic for SIS (34.4, SD 5.5 years) and control group 2 consisted of 15 female subjects (33.1, SD 6.2 years) asymptomatic for SIS and with no exposure to activities with the upper limbs. The JPS was evaluated bilaterally during passive (2°/sec) and active (5°/sec) repositioning tests using an isokinetic dynamometer. The target angles were 45° of lateral rotation (achieved by medially rotating the shoulder from 90° of lateral rotation) and 75° of lateral rotation (achieved by laterally rotating the shoulder from neutral rotation). There were no differences between sides for all groups (p  >  0.05). There were no differences in any of the variables between the case group and the control groups (p  >  0.05). The results of this study suggest that JPS during medial and lateral rotations of the shoulder is not altered in female assembly line workers with SIS.
authors.affiliation: Department of Physical Therapy, Federal University of São Carlos, São Carlos, SP, Brasil.
authors.forename: Melina N
authors.initials: MN
authors.lastname: Haik
authors.forename: Paula R
authors.initials: PR
authors.lastname: Camargo
authors.forename: Gisele G
authors.initials: GG
authors.lastname: Zanca
authors.forename: Francisco
authors.initials: F
authors.lastname: Alburquerque-Sendín
authors.forename: Tania F
authors.initials: TF
authors.lastname: Salvini
authors.forename: Stela M
authors.initials: SM
authors.lastname: Mattiello-Rosa
mesh_terms: D000328:Adult; D016022:Case-Control Studies; D005260:Female; D006801:Humans; D007221:Industry; D009119:Muscle Contraction / Q000502:physiology; D053581:Muscle Strength Dynamometer; D009784:Occupational Diseases / Q000175:diagnosis / Q000209:etiology / Q000503:physiopathology*; D011434:Proprioception / Q000502:physiology*; D016059:Range of Motion, Articular / Q000502:physiology*; D012737:Sex Factors; D019534:Shoulder Impingement Syndrome / Q000175:diagnosis / Q000209:etiology / Q000503:physiopathology*