Which exercise focuses primarily on core strength and stability?

The plank is an exercise that concentrates primarily on core strength and stability. When performing a plank, the body is positioned in a straight line, supported by the forearms and toes, engaging multiple muscle groups, particularly the abdominals, obliques, and lower back. This static position requires the core muscles to maintain stability and prevent the hips from sagging or rising, which enhances overall core strength.

In contrast, while push-ups do engage the core to a degree, their primary focus is on upper body strength, targeting the chest, shoulders, and triceps. Jumping jacks are a cardiovascular exercise that primarily activates the legs and increases heart rate rather than focusing on core stability. Lunges target the lower body, specifically the quads, hamstrings, and glutes, and while they do require some core engagement for balance, they do not emphasize core strength in the same way that planks do. Therefore, the plank stands out as the exercise most directly associated with developing core strength and stability.