Fatigue Test With an XCo

Elaboration of an External Rotators Fatigue Test With an XCo

The reliability of the Xco endurance test will be assessed in sedentary adults and in overhead athletes. The experimentation will be divided into two sessions. During the sessions, the impact of the test on rotators strength and throwing performance will be explored.

Study Overview

• Status: Completed
• Conditions: Fatigue
• Intervention / Treatment: Other: Performing Xco endurance test

Detailed Description

At first, the reliability of the Xco endurance test will be assessed in sedentary adults. Then, the reliability of the test will be assessed in overhead athletes. The experimentation will include two sessions. During those sessions, the impact of fatigue (induced by the test) on rotator cuff muscles strength and on functional test performance (Single Arm Medicine Ball Throw) will be assessed. A time of 7 to 10 days will be provided between the two sessions.

To perform the XCo endurance test, the participant will be seated on a chair, arm at 90° of abduction (in frontal plane), elbow flexed at 90 degrees and positioned on a wooden support. From a 90 degrees of abduction and a neutral position of rotation, the participants will be asked to realise an external rotation movement of 90 degrees and then to go back to the starting position as many times as possible at a speed of 140 bpm. Mechanical stops (the wall and an adjustable height table) will be added to make sure that the participants respected the entire range of motion. After adjusting the position, it will be asked to the participants to perform 2 repetitions of 5 movements at 140 bpm (in eccentric and concentric) to get familiar to the rhythm. Thirty seconds of rest will be provided between the 2 repetitions to avoid the appearance of fatigue before the test.

Then, the participants will begin the test. The objective of the test will be to perform the movement as long as possible. The test will be stopped if the volunteers is not able to maintain the rhythm or to do the movement anymore. The Modified Borg Scale will be used to be sure that each subject was really exhausted when the test was stopped. For that purpose, each of them will have to quantify their level of exhaustion on the scale (maximum score = 10) every 30 seconds.

• Study Type: Observational
• Enrollment (Actual): 50

Contacts and Locations

Study Locations

• Belgium
  • Liège, Belgium, 4000
    • Université de Liège

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years to 35 years (Adult)
• Accepts Healthy Volunteers: Yes
• Genders Eligible for Study: Male

• Sampling Method: Non-Probability Sample

Study Population

The population will be divided into two groups : sedentary adults and overhead athletes

Description

Inclusion Criteria:

• Practice of an overhead sport at least 5 hours a week (overhead athletes group)
• Not practice an overhead sport (sedentary adults)

Exclusion Criteria:

• History of shoulder pain
• Shoulder pain

Study Plan

How is the study designed?

Number of groups / cohorts

2

Cohorts and Interventions

Group / Cohort	Intervention / Treatment
Sedentary adults; Do not practice overhead sport; No pain or history of shoulder pain	Other: Performing Xco endurance test; The subjects will perform the test two times, with 7-10 days between the two sessions
Overhead athletes; Practice an overhead sport at least five hours a week; No pain or history of shoulder pain	Other: Performing Xco endurance test; The subjects will perform the test two times, with 7-10 days between the two sessions

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Time Frame
Time to exhaustion	10 days
Shoulder rotators strength	10 minutes
Distance reached with Single Arm Medicine Ball Throw	10 minutes

Collaborators and Investigators

• Sponsor: University of Liege
• Investigators: Principal Investigator: Camille Tooth, ULiège

Publications and helpful links

General Publications

• Tooth C, Forthomme B, Croisier JL, Gofflot A, Bornheim S, Schwartz C. The Modified-Athletic Shoulder Test: Reliability and validity of a new on-field assessment tool. Phys Ther Sport. 2022 Nov;58:8-15. doi: 10.1016/j.ptsp.2022.08.003. Epub 2022 Aug 30.

Study record dates

Study Major Dates

• Study Start (Actual): November 22, 2021
• Primary Completion (Actual): February 16, 2022
• Study Completion (Actual): March 1, 2022

Study Registration Dates

• First Submitted: October 27, 2021
• First Submitted That Met QC Criteria: October 27, 2021
• First Posted (Actual): November 8, 2021

Study Record Updates

• Last Update Posted (Actual): May 31, 2022
• Last Update Submitted That Met QC Criteria: May 26, 2022
• Last Verified: May 1, 2022

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Fatigue
• Other Study ID Numbers: Fatigue XCo

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO

Drug and device information, study documents

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