Analysis of Shoulder Muscle Activity During Isokinetic Evaluation of Rotators

NCT04312529 | Unknown

• 1 other identifier: 1996
• Study Type: interventional
• Target: 20
• Locations: 1 country
• Sites: 1

Brief Summary

The objective of this study is to assess the impact of different positions of the glenohumeral joint on the maximum muscle contraction of different shoulder muscles. The muscles do not contract with the same intensity depending on the position of the arm in relation to the trunk. With the determination of this optimal position to activate the shoulder muscles as much as possible, we will be able to strengthen the patients during their revalidation.

Conditions

Muscle Activation; Electromyography; Muscle Strength; Shoulder

Outcome Measures

Primary Outcomes (2)

• strength test

  The strength will be assess with a isokinetic device. It will allow to calculate the maximum force of the subject at the level of the rotators of the shoulder. This is a dorsal decubitus test. The subject's arm will be positioned during one session in 45° of abduction and the other session in 90° of shoulder abduction. In this position, the subject will perform tests at different speeds (60°/s concentric, 240°/s concentric and 60°/s eccentric). This will calculate the maximum force.

  Day 1.

• Electrical activity of the muscles

  The electromyography will allow to calculate the electrical activity of the muscles during the two isokinetics and thus to determine which active position the most the muscles of the shoulder. This measurement is achieved by the installation of surface electrodes

  Day 1.

Secondary Outcomes (1)

• Weight

  Day 1

Study Arms (1)

Overhead athletes

EXPERIMENTAL

Other: Isokinetic test + EMG

Interventions

Isokinetic test + EMG OTHER

Isokinetic test:The isokinetic device is used to evaluate the strength of a subject. The test will be performed in two positions. This will determine the best position to activate shoulder muscles EMG (electromyography):it's a device that measures the electrical activity of muscles. This will allow us to record the maximum activity of the shoulder muscles during force tests.

Overhead athletes

Eligibility Criteria

• Age: 18 Years - 35 Years
• Sex: male
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64)

You may qualify if:

• Male subjects aged 18-35.
• Playing a sport using the upper limb (handball, volleyball, swimming, tennis) at least 6h/week

You may not qualify if:

• Pain in the shoulder
• Shoulder pathologies such as gleno-humeral dislocation, tendinopathy, sub-acromial conflict, etc.
• History of shoulder surgery (prosthesis, stabilizing surgery, etc.)

Sponsors & Collaborators

• University of Liege: lead

Study Sites (1)

Université de Liège

Liège, 4000, Belgium

RECRUITING

Central Study Contacts

Amandine Gofflot

CONTACT

+3243662193; agofflot@uliege.be

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: NA
• Masking: NONE
• Purpose: SCREENING
• Intervention Model: SINGLE GROUP
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Principal investigator

Study Record Dates

• First Submitted: March 11, 2020
• First Posted: March 18, 2020
• Study Start: November 1, 2020
• Primary Completion: December 24, 2020
• Study Completion: May 1, 2024
• Last Updated: May 9, 2023

Record last verified: 2023-05

Locations

BE (1)