Which statement correctly describes eccentric contractions in relation to muscle damage?

Study for the Advanced Subsidiary WJEC Physical Education Test. Engage with flashcards and multiple-choice questions, each providing hints and explanations. Prepare thoroughly for your exam!

Multiple Choice

Which statement correctly describes eccentric contractions in relation to muscle damage?

Explanation:
Eccentric contractions involve the muscle lengthening under tension, which places the muscle under higher mechanical stress than when it shortens. This extra strain disrupts more sarcomeres and surrounding connective tissue, producing more micro-tears and leading to greater muscle damage and typical soreness after unfamiliar eccentric work. Therefore, describing eccentric contractions as causing more microtears than concentric contractions best captures their effect on muscle damage. The other statements imply less or no damage or a protective effect, which doesn’t fit the greater disruption seen with eccentric loading.

Eccentric contractions involve the muscle lengthening under tension, which places the muscle under higher mechanical stress than when it shortens. This extra strain disrupts more sarcomeres and surrounding connective tissue, producing more micro-tears and leading to greater muscle damage and typical soreness after unfamiliar eccentric work. Therefore, describing eccentric contractions as causing more microtears than concentric contractions best captures their effect on muscle damage. The other statements imply less or no damage or a protective effect, which doesn’t fit the greater disruption seen with eccentric loading.

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