Physical/Self-perceived Performance and 3D Shoulder Kinematics of Volleyball Attackers With/Without Shoulder Complaints and Scapular Dyskinesis

Universidade do Porto60 enrolled

Overview

The study aims to compare the performance and the 3D shoulder kinematics of volleyball attackers with and without scapular dyskinesis and shoulder symptoms in two physical performance measures of the upper extremity, and correlate their outcomes with a self-reported measure of function of the upper extremity.

Volleyball attackers with clinically identified scapular dyskinesis and with/without shoulder symptoms will be compared with respect to performance outcomes and scapular kinematics. Performance will be assessed by means of the unilateral seated shot put test (USSPT), the upper quarter Y balance test (UQYBT), and Disabilities of the Arm, Shoulder and Hand, sports module (DASH). Pain measurements after completing physical performance measures will be assessed and rated. Relationships between physical (USSPT, UQYBT) and self-perceived (DASH) measures of performance, and with impairment-based measures (clinical measures and 3D shoulder kinematics) will be assessed.

Study Type

OBSERVATIONAL

Enrollment

Conditions

Shoulder Pain

Interventions

Performance measures of the upper extremityBEHAVIORAL

Athletes will perform the unilateral seated shot put test (USSPT) and the upper quarter Y balance test (UQYBT) bilaterally.

Eligibility

Sex: ALLMin age: 18 YearsMax age: 40 YearsHealthy volunteers:

Medical Language ↔ Plain English

Inclusion Criteria: * subjects who can perform at least 150 degrees of arm elevation Exclusion Criteria: * subjects rating pain ≥8/10 * score 5 on any of the items of the DASH * pain elicited by provocation maneuvers of the neighboring regions (e.g., cervical spine).

Locations (3)

Faculdade de Motricidade Humana, Universidade de Lisboa

Oeiras, Cruz-Quebrada, Portugal

Escola Superior de Saúde, Instituto Politécnico de Leiria

Leiria, Portugal

Faculdade de Desporto, Universidade do Porto

Porto, Portugal

Outcomes

Primary Outcomes

Side-to-side differences in the unilateral seated shot put test (normalized distance thrown, in centimeters)

The unilateral seated shot put test consists of pushing (not throwing) at shoulder height a \~3kg medicine ball as far and forward as possible while keeping the axial skeleton in contact with a wall, knees bent at a right angle, feet flat on the floor, and the non-testing arm resting on the lap.