The plank is a popular exercise that strengthens the core muscles, which include the abdomen, back, and shoulders. To perform a plank, you lie face down and lift your body off the ground, balancing on your forearms and toes. This position engages multiple muscle groups, helping improve stability and posture. In addition to building strength, the plank can enhance overall fitness and endurance. It can be modified for different fitness levels, making it accessible for beginners and challenging for advanced athletes. Incorporating the plank into your routine can lead to better performance in activities like running, swimming, or even yoga.