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To test and strengthen your balance, try a side plank with a leg raise â get into side plank position, then lift your top leg and hold for one count. Lower it and repeat, then switch sides. In addition, planks work all the muscles you need to maintain proper posture, like your back, chest, shoulders, abs, and neck.
Form[edit] The most common plank is the front plank which is held in a push-up-like position, with the body's weight borne on forearms, elbows, and toes. The arms should be directly under the shoulders, with the entire body in a straight line (from toes to head) and the back completely flat, neither arched nor rounded.