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

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

• A. They help prevent muscle damage during eccentric actions
• B. Eccentric contractions are less damaging than concentric
• C. They cause fewer microtears
• D. They cause more microtears than concentric contractions

Answer: (D)

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.