NETA Personal Trainer Practice Exam

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Prepare for the NETA Personal Trainer Exam with study tools, flashcards, and practice quizzes. Test your knowledge with multiple choice questions, each featuring hints and detailed explanations to boost your confidence and readiness for exam success.

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What type of exercise involves both concentric and eccentric muscle actions?

Isometric exercise
Isokinetic exercise
Isotonic exercise
Closed kinetic chain exercise

The correct answer is: Isotonic exercise

The correct choice involves isotonic exercise, which is characterized by muscle contractions where tension develops while the muscle changes length, resulting in movement. Both concentric and eccentric muscle actions are integral components of isotonic exercises. In concentric contraction, the muscle shortens as it exerts force, such as when lifting a weight during a bicep curl. Conversely, eccentric contraction occurs when the muscle lengthens while still under tension, such as when lowering the weight back down. This combination enables muscles to work through a full range of motion, promoting strength, endurance, and overall fitness. This understanding of isotonic exercises is essential, as they typically mirror real-life movements and can be applied in various training contexts to improve functional strength.