Clinical trial NCT05112380: Fatigue Test With an XCo
Official title: Elaboration of an External Rotators Fatigue Test With an XCo
Study type: OBSERVATIONAL
Overall status: COMPLETED
Conditions: Fatigue
Lead sponsor: University of Liege
Sponsor class: OTHER
First posted: 2021-11-08
Enrollment: 50
Sex: MALE
Minimum age (years): 18
Maximum age (years): 35
Standard ages: ADULT
Accepts healthy volunteers: yes
Observational model: COHORT
Time perspective: CROSS_SECTIONAL
Sampling method: NON_PROBABILITY_SAMPLE
Study population: The population will be divided into two groups : sedentary adults and overhead athletes

Brief summary: 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.

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.

Eligibility criteria: 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

Primary outcomes:
measure: Time to exhaustion
timeFrame: 10 days
measure: Shoulder rotators strength
timeFrame: 10 minutes
measure: Distance reached with Single Arm Medicine Ball Throw
timeFrame: 10 minutes
Secondary outcomes:
Other outcomes:
Locations:
city: Liège
country: Belgium
facility: Université de Liège
Study officials:
affiliation: ULiège
name: Camille Tooth
role: PRINCIPAL_INVESTIGATOR
References:
citation: 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.