Plank exercises are one of the best for building core strength. They engage multiple muscle groups, including the abdominals, back, and shoulders, promoting overall stability and strength. Holding a plank position challenges the body to maintain form and balance, which activates core muscles effectively. Other variations, like side planks or plank with leg lifts, can further increase the engagement of core muscles. Developing core strength through planks enhances athletic performance and supports proper posture, reducing the risk of injury in daily activities.