Influence of Anthropometric Data, Shoulder Complex Muscle Strength, and Abdominal-lumbar Endurance in Closed Kinetic Chain Upper Extremity Stability Test (EPOLTEST 2)

Influence of Anthropometric Data, Shoulder Complex Muscle Strength, and Abdominal-lumbar Endurance in Closed Kinetic Chain Upper Extremity Stability Test

Influence of Anthropometric Data, Shoulder Complex Muscle Strength, and Abdominal-lumbar Endurance in Closed Kinetic Chain Upper Extremity Stability Test

A previous study of the Closed Kinetic Chain Upper Extremity Stability Test (EPOLTEST) in a population aged 18 to 25 years isolated 3 main factors influencing the CKCUEST score: upper extremity span, weight, and sex of the individual. A predictive equation for the CKCUEST score was thus established and to date has a capacity to determine the real score of approximately 51%. The results of this first study show that a certain number of variables have not been studied. The purpose of this study, EPOLTEST 2, is to take into account the variables already studied on a larger population (18-50 years old) and to add an assessment of shoulder muscle strength and abdominolumbar endurance.

Each patient receive the same intervention, the Closed Kinetic Chain Upper Extremity Stability Test (CKCUEST). The CKCUEST is a functional test which assess shoulder's stability. Patient is in push-up position, with 91 cm between his hands. His body is straight and his foots are squeeze. patient has to touch his hand with his other one and returns in the initial position. Then, patient repeats this movement with his other hand, etc, during 15 secondes. The CKCUEST score is the movement's number performed.

The prone bridge test also known as the "plank" or "hover" measures the muscular endurance of the abdominal muscles. Subjects will start in the "down" push up position with their feet together and their hands shoulder width apart. When the test starts the subject will push up to the prone bridge position so they are resting on their hands and toes making sure they maintain a straight line from the shoulders through the hips to the knees. The outcome measure will be the time where the subject stay in this position.

Maximum isometric force of the external and internal rotators and abductors/adductors measured by a dynamometer.

Closed Kinetic Chain Upper Extremity Stability Test/ The CKCUEST is a functional test which assess shoulder's stability. Patient is in push-up position, with 91 cm between his hands. His body is straight and his foots are squeeze. Patient has to touch his hand with his other one and returns in the initial position. Then, patient repeats this movement with his other hand, etc, during 15 secondes. The CKCUEST score is the movement's number performed. Three tests are performed. The outcome measure will be the mean of the score of the three tests realisation.

Measurement of the subject's distance between acromion and radial styloid of the right upper limb in centimeters

Measurement of the subject's distance between olecranon and radial styloid of the right upper limb in centimeters

Maximum isometric force of the external and internal rotators and abductors/adductors measured by a dynamometer in Newton.

The prone bridge test also known as the "plank" or "hover" measures the muscular endurance of the abdominal muscles. Subjects will start in the "down" push up position with their feet together and their hands shoulder width apart. When the test starts the subject will push up to the prone bridge position so they are resting on their hands and toes making sure they maintain a straight line from the shoulders through the hips to the knees. The outcome measure will be the time where the subject stay in this position.

Inclusion Criteria: Aged to 18 to 50 years Capacity to consent Who has signed the consent Exclusion Criteria: Fracture history or upper limb luxation < 1 year Pain or discomfort that prevents the test from being performed History of abdominal surgery or hernia < 1 year Pregnant or nursing Refuse to participate Guardianship or protection of vulnerable adult

Data will be available after the publication of result and ending fifteen years following the last visit of the last patient.

Data access requests will be reviewed by the internal committee of Brest University Hospital. Requestors will be required to sign and complete a data access agreement.