Why are compound exercises favored in strength training?

Compound exercises are favored in strength training because they engage multiple muscle groups simultaneously. This characteristic allows for a more efficient workout, as these exercises mimic real-life movements and enhance functional strength. By utilizing several muscle groups, compound exercises can lead to greater overall strength gains, improve coordination, and increase calorie expenditure during workouts. They also promote better hormone responses, such as increases in testosterone and growth hormone, which are beneficial for muscle development and overall fitness.

In contrast to the other options, isolating single muscle groups, relying on no equipment, or being less effective for strength gains do not accurately reflect the value and effectiveness of compound exercises in a training regimen. These other options either provide limited benefits or misunderstand the fundamental purpose of strength training, which aims to build overall strength and functionality across multiple muscle groups.