Skip to main content
OpenTrials
Completed

NCT Number: NCT04078945

Risk Factors of Shoulder Injuries in Youth Volleyball Players

Shoulder injuries are usual in volleyball players. Nowadays, few prospective studies assessed risk factors of shoulder injuries in this sport. So, the objective of this study is to assess the risk factors of injuries in youth volleyball players. For that purpose, the following factors will be taken into consideration : shoulder internal/external rotators strength, shoulder range of motion, scapular dyskinesis, functional tests (medicine ball throw and upper quarter Y balance test), training load and psychosocial factors (POMS questionnaire).

Completed

Looking for future studies?

Notify Me

Key information

Conditions

Shoulder Injuries Wounds and Injuries

Age range

13 year–20 year

Sex eligibility

All sexes

Study type

Observational

Primary location

Belgium, Wallonia

Liège, Belgium

About this study

About 100 youth volleyball players (13-20 years), playing at least 8 hours volleyball in a week will be included in the study.

At the beginning of the 2019-2020 season, they will have to take part at the following evaluations :

  • Clinical evaluation :
  • Scapular dyskinesis assessment (normal, subtle abnormality and obvious abnormality)
  • Scapular upward rotation at 0°, 45°,90° and 120° with an inclinometer.
  • Rounded shoulder posture
  • Posterior shoulder stiffness
  • Internal/external rotation range of motion (at 90° of abduction)
  • Medicine ball throw :

From a cocking position, players have to throw a 800g medicine ball as far as possible (3 trials). Only the best result will be retained for analysis. Volunteers have 2 minutes of rest between trials.

  • Upper Quarter Y Balance Test :

In a facial drop position, the purpose of this test is to bring the plastic board as far as possible in the 3 directions (supero-lateral, infero-lateral, medial). 3 trials are performed by each subject and only the best test is kept for analysis. A rest period of one minute is provided between tests to avoid fatigue.

  • Strength assessment (isokinetic test) :

Internal and external rotators strength (concentric 60°/s, eccentric 60°/s and concentric 240°/s) are measured with an isokinetic device (Cybex Norm) at 90° of abduction.

  • Psychosocial factors assessment :

Players will have to fill in POMS questionnaire (65 questions), that give information about stress and well-being.

After that, players will be followed during all the 2019-2020 season and will have to fill in a form each month about the potential injuries they had during the previous month.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • age between 13 and 20
  • to play volleyball at least 8 hours in a week

Exclusion criteria

There are no exclusion criteria

Treatment and study plan

Primary outcomes

  1. Shoulder internal/external rotation range of motion

    Time frame: 1 month

    Range of motion will be measured in degrees

  2. Scapular dyskinesis

    Time frame: 1 month

    "yes/no" method

  3. Internal/external rotators strength

    Time frame: 1 month

    Strength of internal and external rotators will be assessed in concentric (60°/s and 240°/s) and in eccentric (60°/s) modes with an isokinetic device (Cybex Norm).

  4. Upper Quarter Y Balance test

    Time frame: 1 month

    The score obtained will be measured in cm and normalized by upperlimb length

  5. Medicine ball throw

    Time frame: 1 month

    A 800g medicine throw will have to be thrown as far as possible and the score will be measured in meters

  6. Psychosocial factors

    Time frame: up to 8 months

    Questionnaire POMS will have to be filled in by the participants each month

  7. Shoulder injuries

    Time frame: up to 8 months

    Participants will have to mention each month the injuries or pain they had during the previous month at shoulder location

Sponsors and collaborators

Lead sponsor

University of Liege

Other

Registry information

Official study title

Risk Factors of Shoulder Injuries in Youth Volleyball Players : Prospective Study

Important dates

Study start
2019
Primary completion
2022
Study completion
2022
First posted
Sep 6, 2019
Registry last updated
Aug 30, 2022

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

Related clinical trials

Published trials that share one or more normalized conditions with this study.