Which of the following best describes muscular strength?

• A. The maximum force a muscle can exert in a single effort
• B. The ability to sustain activity for a long time
• C. The speed of muscle contraction
• D. The range of motion around a joint

Answer: (A)

Muscular strength is the maximum force a muscle or muscle group can exert in a single contraction. This peak force in one effort is what strength training targets and is what tests like a one-repetition maximum measure. It’s different from muscular endurance, which is about sustaining effort over many repetitions; from speed of contraction, which relates to how quickly force is produced (power); and from range of motion, which is about flexibility around a joint.