MedDataX Logo

Range of Motion, Humeral Retroversion and Rotator Cuff (RC) Muscle Strength of the Shoulder in Overhead Athletes

NCT ID: NCT02024893

Last Updated: 2017-11-13

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

COMPLETED

Total Enrollment

35 participants

Study Classification

OBSERVATIONAL

Study Start Date

2014-01-31

Study Completion Date

2016-08-31

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

* Shoulder pain and dysfunction are common problems in overhead sports, due to extreme ranges of motion and repetitive loading. Predisposing factors include inadequate range of motion (ROM), such as a reduction in total ROM or a shift of balance between internal and external rotation. Such a shift may be the result of soft tissue adaptations to the activity demands, or reflect a structural outcome of Humeral retroversion. A shift in the range of motion may be detrimental to the rotator muscle function, which may create another risk factor for shoulder injury.
* The purpose of this study is to document shoulder range of motion, humeral retroversion, rotator muscle strength and fatigue in several groups of overhead athletes undergoing a routine pre season screening once a year, and investigate the interaction between those factors in the different groups.

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

At the commencement of training season athletes will receive a detailed explanation and sign an informed concent form.

* Upon enrollment each athlete will fill a personal questionnaire, including injury history. This is done in accordance with a regular screening performed on those teams.
* ROM will be measured in the supine position, as described in detail in the work of Almeida et al, J shoulder Elbow Surg 2013, 22 , 602-607.
* Following the ROM measurement, assessment of Humeral retroversion via Ultrasound will be carried out, as described and validated by Myers J et al, Am J Sports Med, 2012, 40: 1155-1160.
* Strength testing will be then commenced. A structured warm up procedure consisting of 2 sets of rotation exercises using Theraband will be carried out. Following this a pre - set order of testing consisting of isometric- isokinetic concentric, isokinetic eccentric testing will be performed. This order was chosen in order to allow maximal physiologic preparation and safety during testing. The first side to be tested will be determined randomly.
* Isometric testing will be carried out in the seated, 90/90 position with respect to shoulder and elbow. This position was chosen to reflect as closely as possible the functional range of the dominant shoulder during athletic activity. 3 Contractions of 3 second each, external rotation will be performed, followed by 3 contractions of 3 seconds each into internal rotation. Both will be held against a stationary pad.
* Isokinetic testing will commence following a familiarization procedure, with subject positioned according to manufacture's manual and the protocol described by Zanca et al, J Sports Sciences 2011,29 (15):1603-1611.
* Two sets will be performed concentrically, at 60 degrees/second and at 180 deg/second. Eccentric testing will consist of one set utilizing the slow velocity of 60 degrees/sec.
* Outcome measures will consist of total range of motion (TROM), difference in internal rotation (GIRD), external rotation gain (ERG), Humeral retroversion (HRT)- all measured in degrees. Strength measurement will consisit of maximal isometric strength (Newton), isokinetic peak torque for each direction (Newton/Meter) and agonist:antagonist muscle ratios- concentric, eccentric and dynamic control ratio ( Eccentric external rotation/concentric internal rotation).

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

Shoulder Pain

Keywords

Explore important study keywords that can help with search, categorization, and topic discovery.

Humeral retroversion dynamic control ratio GIRD

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Observational Model Type

COHORT

Study Time Perspective

CROSS_SECTIONAL

Study Groups

Review each arm or cohort in the study, along with the interventions and objectives associated with them.

National womens water- polo team

Observational study-members of the national womens waterpolo team participating in formal team training and tournaments for the 2014-2015 season.

Observational study

Intervention Type OTHER

Observation and type of data collected are listged in detail under 'description"

National mens handball team

Observational study-Twenty men , members of the national , over 18 years old handball team preparing for the european championships for summer 2014

Observational study

Intervention Type OTHER

Observation and type of data collected are listged in detail under 'description"

National womens volleyball team

20 players who are part of the women's national olympic volleyball team

Observational study

Intervention Type OTHER

Observation and type of data collected are listged in detail under 'description"

Interventions

Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.

Observational study

Observation and type of data collected are listged in detail under 'description"

Intervention Type OTHER

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

Exclusion Criteria

* Shoulder surgeries
* cervical pain or radiating pain into upper extremity limiting athletic participation
* cervical or radiating pain cocurrent with neurological signs, such as diminished reflexes, sensory disturbances or weakness
Minimum Eligible Age

18 Years

Maximum Eligible Age

40 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

Meet the organizations funding or collaborating on the study and learn about their roles.

Wingate Institute

OTHER

Sponsor Role lead

Responsible Party

Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.

Dr. Eyal Shargal

Director, Ribstein center for sports medicine and research

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

Learn about the lead researchers overseeing the trial and their institutional affiliations.

Eyal Shargal, PhD

Role: STUDY_DIRECTOR

Wingate Institute

Locations

Explore where the study is taking place and check the recruitment status at each participating site.

Ribstein center for sports medicine and research at the Wingate Institute Institue

Netanya, , Israel

Site Status

Countries

Review the countries where the study has at least one active or historical site.

Israel

Other Identifiers

Review additional registry numbers or institutional identifiers associated with this trial.

WingateShoulder1

Identifier Type: -

Identifier Source: org_study_id