The side plank is an isometric exercise that primarily targets the obliques, the muscles located on the sides of the abdomen. To perform a side plank, lie on your side with your legs straight and stacked on top of each other. Prop yourself up on one elbow, keeping your body in a straight line from head to heels. Hold this position for a set duration, engaging your core to maintain stability. This exercise helps improve core strength, balance, and stability. It can also enhance overall athletic performance and reduce the risk of injury. Variations, such as raising the top leg or arm, can increase the challenge and effectiveness of the side plank.