Which type of exercise primarily increases strength?

The type of exercise that primarily increases strength is resistance training. This form of exercise involves working against a force, which can be provided by weights, resistance bands, or even body weight. When muscles are subjected to resistance, they adapt by repairing and growing stronger, leading to increased muscle mass and strength over time.

Resistance training typically involves performing exercises like weightlifting, bodyweight exercises (like squats and push-ups), and other activities that target specific muscle groups. This is in contrast to aerobic exercise, which focuses on improving cardiovascular endurance, endurance training that enhances stamina for prolonged activities, and flexibility exercises that improve range of motion but do not significantly enhance strength. Therefore, for the goal of increasing strength effectively, resistance training is the optimal choice.