AFAA Personal Trainer Certification Practice Exam

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Study for the AFAA Personal Trainer Certification Exam. Engage with quizzes, flashcards, and multiple-choice questions. Prepare efficiently with hints and explanations to achieve certification success.

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

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What role does cartilage play in preventing joint damage?

Increases range of motion
Prevents friction between bones
Regulates muscle contractions
Enhances nerve sensitivity

The correct answer is: Prevents friction between bones

Cartilage plays a crucial role in joint health by providing a smooth, slippery surface that prevents friction between bones during movement. This cushioning effect allows the bones to glide over one another easily, reducing wear and tear on both the cartilage and the underlying bone structures. By minimizing friction, cartilage helps to maintain the integrity of the joints and prevents joint damage that can lead to conditions such as arthritis. Additionally, the elastic properties of cartilage allow it to absorb shock, providing further protection to the joint during physical activities. This protective function is essential for preserving joint function and overall mobility, particularly in weight-bearing joints like the knees and hips.