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Status unknownNCT02852746Updated Jan 6, 2021

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

An observational study in Shoulder Pain, sponsored by Universidade do Porto. Status unknown at 3 sites in Portugal. Open to participants aged 18 Years to 40 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2021-01-06.

Sponsored by Universidade do Porto · Observational

The sponsor has not verified this record recently (last verified Jan 2021), so the status shown — last known as Enrolling by invitation — may be out of date.
Study type
Observational
Model
Case-control
Time perspective
Cross-sectional
Enrollment
60
Ages
18 Years to 40 Years
Sex
All
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Study summary

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.

Read the detailed description

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.

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Conditions studied

  • Shoulder Pain

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03

In context

Shoulder Pain

707 studies on the registry are indexed under Shoulder Pain; 152 are open to participants now.

This study's planned enrollment of 60 is below the median of 82 across 130 observational studies indexed under Shoulder Pain.

Browse Shoulder Pain studies →

Lead sponsor

Universidade do Porto is the lead sponsor of 170 studies on the registry; 52 are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years to 40 Years
Sexes eligible
All
Accepts healthy volunteers
Yes
Sampling method
Non-probability sample

Study population

Athletes from sports organizations involved in competitive events with pain and disability in the shoulder region

Inclusion criteria

  • subjects who can perform at least 150 degrees of arm elevation

Exclusion criteria

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).
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Study design

Observational model
Case-control
Time perspective
Cross-sectional
Enrollment
60 participants (estimated)
Patient registry
No

Groups and cohorts

  • Asympt. athletes / scapular dyskinesis

    Asymptomatic volleyball attackers involved in competitive events ≥ 2 years and with clinical evidence of scapula dyskinesis

    Behavioral: Performance measures of the upper extremity

  • Symptom. athletes / scapular dyskinesis

    Symptomatic volleyball attackers involved in competitive events ≥ 2 years and with clinical evidence of scapula dyskinesis

    Behavioral: Performance measures of the upper extremity

Interventions

  • BehavioralPerformance measures of the upper extremity

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

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What researchers measure

Primary outcomes

  1. 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.

    Time frame: Through study completion, an average of 1 year

  2. Side-to-side differences in the upper quarter Y balance test (normalized maximal distance reached in each direction, in centimeters)

    The upper quarter Y balance test is performed through the assistance of a testing device (Y-Balance Test Kit), with the subject stabilizing his/her body weight with the upper extremity being tested while performing maximal reaching efforts with the free hand in three directions: medial, superolateral, and inferolateral.

    Time frame: Through study completion, an average of 1 year

  3. Disabilities of the Arm, Shoulder and Hand (sports module)

    A self-reported measure of upper extremity functioning

    Time frame: Through study completion, an average of 1 year

Secondary outcomes

  1. Side-to-side differences in 3-dimensional scapular angular displacement (in degrees)

    The angular displacement of the scapula in the 3 planes of orientation: lateral/medial (upward/downward) rotation, protraction/retraction (internal/external rotation), anterior/posterior tilting.

    Time frame: Through study completion, an average of 1 year

  2. Side-to-side differences in 3-dimensional humerus angular displacement (in degrees)

    The angular displacement of the humerus in the 3 planes of orientation: plane of elevation, elevation/depression, axial rotation.

    Time frame: Through study completion, an average of 1 year

  3. Side-to-side differences in 3-dimensional thoracic angular displacement (in degrees)

    The angular displacement of the thorax in the 3 planes of orientation: flexion/extension, lateral rotation (inclination), axial rotation.

    Time frame: Through study completion, an average of 1 year

  4. Visual Numeric Rating Scale score (0-10)

    A 11-point scale to rate pain intensity

    Time frame: Through study completion, an average of 1 year

  5. Side-to-side differences in the upper quarter Y balance test (total excursion, in centimeters)

    total excursion = sum of the 3 normalized reach distances, in centimeters

    Time frame: Through study completion, an average of 1 year

  6. Side-to-side differences in the upper quarter Y balance test (overall performance score, in centimeters)

    overall performance or composite score = average score of the 3 normalized reach distances, in centimeters.

    Time frame: Through study completion, an average of 1 year]

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Study locations

3 sites
  • Faculdade de Motricidade Humana, Universidade de Lisboa
    Oeiras, Cruz-Quebrada 1499-002, Portugal
  • Escola Superior de Saúde, Instituto Politécnico de Leiria
    Leiria, 2411-901, Portugal
  • Faculdade de Desporto, Universidade do Porto
    Porto, 4200-450, Portugal
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jan 6, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT02852746
Lead sponsor
Universidade do Porto
Collaborators
University of Lisbon, Instituto Politécnico de Leiria
Responsible party
Nuno Morais (PhD student, Universidade do Porto) — Principal investigator
First posted
Aug 2, 2016
Start date
Jul 24, 2018
Primary completion
Apr 2021 (estimated)
Completion
Jul 2021 (estimated)
Last update
Jan 6, 2021

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is status unknown, as verified in Jan 2021. You cannot join it, but the record below documents what was studied.

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