Which type of physical exercise focuses on using resistance to build strength?

Strength training is specifically designed to enhance the body's ability to exert force against resistance, which is essential for building muscle mass and overall body strength. This type of exercise typically involves the use of weights, resistance bands, or bodyweight exercises to work various muscle groups. The primary goal of strength training is to promote muscular strength and endurance through repeated exertion against resistance, allowing muscles to adapt and grow stronger over time.

In contrast, balance training focuses on improving stability and coordination, aerobic exercise emphasizes cardiovascular endurance and involves activities that raise the heart rate, and flexibility training aims to enhance the range of motion in muscles and joints. Each of these other types of training serves specific fitness goals, but none directly targets muscle strength in the way that strength training does.