Plank

A plank is a core-strengthening exercise where you hold your body in a straight line, supported on your forearms and toes (or knees). It targets muscles in your abdomen, back, shoulders, and hips. By maintaining this position, you improve stability, posture, and muscular endurance. Think of it as balancing your body horizontally, similar to a steady bridge or a straight line from head to toes, without sagging or arching. It's a simple but effective way to enhance core strength and overall fitness, often used in workouts and physical therapy.