Risk Factors of Shoulder Injuries in Youth Volleyball Players

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

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).

Study Overview

• Status: Completed
• Conditions: Shoulder Injuries

Detailed Description

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 :

1. 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)

2. 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.

3. 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.

4. 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.

5. 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.

• Study Type: Observational
• Enrollment (Actual): 230

Contacts and Locations

Study Locations

• Belgium
  • Liege, Belgium
    • Belgium, Wallonia

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 13 years to 20 years (ADULT, CHILD)
• Accepts Healthy Volunteers: Yes
• Genders Eligible for Study: All

• Sampling Method: Probability Sample

Study Population

Youth volleyball players, playing at good level in Wallonia (Belgium) will be included in the study

Description

Inclusion Criteria:

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

Exclusion Criteria:

There are no exclusion criteria

Study Plan

How is the study designed?

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Shoulder internal/external rotation range of motion	Range of motion will be measured in degrees	1 month
Scapular dyskinesis	"yes/no" method	1 month
Internal/external rotators strength	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).	1 month
Upper Quarter Y Balance test	The score obtained will be measured in cm and normalized by upperlimb length	1 month
Medicine ball throw	A 800g medicine throw will have to be thrown as far as possible and the score will be measured in meters	1 month
Psychosocial factors	Questionnaire POMS will have to be filled in by the participants each month	up to 8 months
Shoulder injuries	Participants will have to mention each month the injuries or pain they had during the previous month at shoulder location	up to 8 months

Collaborators and Investigators

• Sponsor: University of Liege

Study record dates

Study Major Dates

• Study Start (ACTUAL): September 1, 2019
• Primary Completion (ACTUAL): May 1, 2022
• Study Completion (ACTUAL): July 1, 2022

Study Registration Dates

• First Submitted: August 29, 2019
• First Submitted That Met QC Criteria: September 2, 2019
• First Posted (ACTUAL): September 6, 2019

Study Record Updates

• Last Update Posted (ACTUAL): August 30, 2022
• Last Update Submitted That Met QC Criteria: August 29, 2022
• Last Verified: August 1, 2022

More Information

Terms related to this study

• Keywords: risk factors; strength; youth volleyball players
• Additional Relevant MeSH Terms: Wounds and Injuries; Shoulder Injuries
• Other Study ID Numbers: Risk factors volleyball

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No