Shoulder Muscle Imbalance as a Risk for Shoulder Injury in Elite Adolescent Badminton Players (BADIRMS)

Shoulder Muscle Imbalance as a Risk for Shoulder Injury in Elite Adolescent Badminton Players : a Prospective Pilot Study

Background: To assess the impact of pre-season clinical measures and rotator muscles strength on the risk of significant shoulder injury (SSI) in elite adolescent badminton players Design: Prospective cohort study Participants: Nine elite adolescents badminton players were included and followed from September 2018 to May 2019.

Independent variables: A pre-season visit consisted in clinical and isokinetic shoulder strength testing. Isokinetic internal and external rotator shoulder muscles strength was tested at 60, 120 and 240°/s. Conventional and functional (eccentric-to-concentric) ratios (FR) were calculated. SSI collection was performed by an experienced sport physician.

Study Overview

• Status: Completed
• Conditions: Shoulder Injuries; Sport Injury

• Study Type: Observational
• Enrollment (Actual): 9

Contacts and Locations

Study Locations

• France
  • Caen, France, 14000
    • CHU Caen Normandie

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: Child; Adult; Older Adult
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

• Sampling Method: Non-Probability Sample

Study Population

The population was all the elite adolescent badminton players from a high-level club

Description

Inclusion Criteria:

• All the elite adolescent badminton players from a high-level club.

Exclusion Criteria:

• Players who had SSI in the 3 months prior to the isokinetic test or had shoulder surgery

Study Plan

How is the study designed?

Design Details

• Observational Models: Cohort
• Time Perspectives: Prospective

Number of groups / cohorts

1

Cohorts and Interventions

Group / Cohort
Elite adolescent badminton players; The population was all the elite adolescent badminton players from a high-level club. We excluded players who had SSI in the 3 months prior to the isokinetic test or had shoulder surgery. They were included and followed from September 2018 to May 2019.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Change from Baseline Isokinetic strength testing (peak torques) at 8 months	Shoulder rotator muscles isokinetic strength test, Measures: Peak Torque on internal rotator muscles (IR) and external rotator muscles (ER), in NM (newton.meter)	Two evaluations, one preseason (september 2018) and one postseason (may 2019) visits
Change from Baseline Isokinetic strength testing (ratios) at 8 months	Shoulder rotator muscles isokinetic strength test, Measures: ratios between external rotator muscles (ER) and internal rotator muscles (IR) (ER:IR), in percent (%)	Two evaluations, one preseason (september 2018) and one postseason (may 2019) visits
Clinical measurements, ROM	Shoulder internal and external rotation range of motion (ROM)	One evaluation, one preseason visit (september 2018)
Clinical measurements TAD	table-to-acromion distance (in cm)	One evaluation, one preseason visit (september 2018)
Significant Shoulder Injury (SSI) collection (number of injury)	Significant Shoulder Injury (SSI) collection for the number of injury	During the badminton season, the number (number, n) of injury was recorded from september 2018 to may 2019
Significant Shoulder Injury (SSI) collection (type of injury)	Significant Shoulder Injury (SSI) collection for the type of injury	During the badminton season, the type of injury (number, n) was recorded from september 2018 to may 2019
Significant Shoulder Injury (SSI) collection (time lost from participation)	Significant Shoulder Injury (SSI) collection for time lost from participation due to the injury	During the badminton season, the time lost from participation was recorded (in days) from september 2018 to may 2019

Collaborators and Investigators

• Sponsor: University Hospital, Caen
• Investigators: Principal Investigator: Joffrey DRIGNY, MD MSc, CHU Caen Normandy

Study record dates

Study Major Dates

• Study Start (Actual): August 5, 2018
• Primary Completion (Actual): September 1, 2018
• Study Completion (Actual): July 15, 2019

Study Registration Dates

• First Submitted: April 20, 2020
• First Submitted That Met QC Criteria: April 22, 2020
• First Posted (Actual): April 24, 2020

Study Record Updates

• Last Update Posted (Actual): April 24, 2020
• Last Update Submitted That Met QC Criteria: April 22, 2020
• Last Verified: April 1, 2020

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Wounds and Injuries; Shoulder Injuries; Athletic Injuries
• Other Study ID Numbers: BADIRMS

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No
• product manufactured in and exported from the U.S.: No