The Relationship Between Scapular Endurance, Core Endurance, and Functional Performance in Adolescent Tennis Players

For the assessment of scapular endurance, participants will be instructed to bend their arms and elbows while keeping a wooden rod placed between their elbows, pull a spring dynamometer placed between thei

"For the Prone Bridge Test, participants will be instructed to lie face down with their hands and feet shoulder-width apart and then raise their bodies off the ground by lifting themselves up on their hands, forearms, and toes. A stopwa"

"For the Side Bridge Test, participants will be asked to lie on their right side, supporting themselves on their forearm and elbow, and lift themselves off the ground. A stopwatch will be started, and the test will be terminated if there is any deviation from the position. The elapsed time will be recorded in seconds. The test will then be repeated on the left side."

For the Closed Kinetic Chain Upper Extremity Stability Test, participants will be asked to assume a push-up position on a flat surface with their hands placed on two parallel lines drawn 90 cm apart. They will then be instructed to touch one hand to the other hand's side as many times as possible within 15 seconds. The test will be repeated three times, and the average of the scores will be calculated.

"For the Seated Medicine Ball Throw Test, participants will be asked to sit on the ground with their back, shoulders, and head against the wall. Holding a 2 kg medicine ball with both hands, they will start with their elbows bent and arms at their sides, then extend their elbows to throw the ball forward as far as possible. The distance between the wall and the point where the ball lands will be recorded. The test will be performed three times, and the average will be calculated."