ACE Personal Trainer Practice Exam

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Prepare for the ACE Personal Trainer Exam. Study with flashcards and multiple choice questions, each question includes explanations and hints. Get exam-ready now!

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What role does the Anterior Cruciate Ligament (ACL) play in the knee?

Improves flexibility of the knee joint
Stabilizes the knee joint during movement
Facilitates the growth of bone tissue
Is a primary muscle for knee extension

The correct answer is: Stabilizes the knee joint during movement

The Anterior Cruciate Ligament (ACL) plays a critical role in stabilizing the knee joint during movement. It is one of the key ligaments that helps maintain the knee's stability, particularly when it comes to activities that involve rapid changes in direction, jumping, or stopping. The ACL is crucial for ensuring proper alignment and function of the knee by preventing excessive anterior translation of the tibia relative to the femur and controlling rotational movements. This stabilization is vital for athletes and anyone engaged in physical activities, as it helps prevent injuries to the knee joint and surrounding structures. The other options do not accurately reflect the function of the ACL; it does not improve flexibility, facilitate bone tissue growth, or serve as a muscle responsible for knee extension.