010-111 Question #191: Real Exam Question with Answer & Explanation

The correct answer is B. leg extensions and leg curls. Muscular balance is achieved by pairing exercises that work opposing muscle groups (agonist and antagonist). Leg extensions target the quadriceps while leg curls target the hamstrings, making them a true antagonist pair.

Question

Muscular balance in a resistance training session may be achieved by alternating ______.

Options

Abench press and supine flys
Bleg extensions and leg curls
Cseated cable rows and lat pulldowns
Dpushups and tricep extensions

Explanation

Muscular balance is achieved by pairing exercises that work opposing muscle groups (agonist and antagonist). Leg extensions target the quadriceps while leg curls target the hamstrings, making them a true antagonist pair.

Common mistakes.

A. Bench press and supine flys both target the pectoralis major and anterior deltoids, meaning they train the same muscle group rather than opposing ones.
C. Seated cable rows and lat pulldowns both target the back musculature (latissimus dorsi, rhomboids), so they do not represent an antagonist pairing for muscular balance.
D. Pushups and tricep extensions both emphasize the triceps and anterior pushing muscles, rather than pairing opposing muscle groups.

Concept tested. Agonist-antagonist pairing for muscular balance

Reference. https://www.acsm.org/education-resources/books/acsms-guidelines-exercise-testing-prescription

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