Question: 20 ways to do planks?
Answer: Elbow plank. Lie facedown with legs extended and elbows bent and directly under shoulders; clasp your hands. ...  Plank with opposite limb extension. ...  Elbow plank with arm/leg lift. ...  Elbow side plank. ...  Standard side plank. ...  Side plank with twist. ...  Back plank. ...  Straight-arm back plank with bent legs.