What is the purpose of incorporating resistance training in a workout routine?

Incorporating resistance training into a workout routine is primarily aimed at increasing muscle strength. This form of training involves exercises that make muscles work against a weight or force, leading to adaptations such as muscle hypertrophy (growth), increased strength, and enhanced overall physical performance.

When resistance is applied to the muscles, it creates micro-tears in the muscle fibers, which the body repairs, leading to stronger and larger muscles. Over time, this process helps individuals to lift heavier weights, perform daily activities with greater ease, and improve their overall fitness levels.

While flexibility, cardiovascular endurance, and agility are important components of a comprehensive fitness program, they are not the primary goals of resistance training. Flexibility is often improved through different modalities such as stretching, cardiovascular endurance is enhanced through aerobic activities, and agility typically involves exercises that emphasize quick and precise movements. Therefore, the correct choice of increasing muscle strength reflects the fundamental purpose of resistance training in fitness routines.