
40. Lateral Plank Walk
Those who are great at planks may want to start challenging themselves with the lateral plank walk. It forces you to tense up your core to maintain your balance and puts your hips and shoulders to good use. You can start this exercise with small steps and then work your way up to making wider movements to put your body to work. Start in a planking position. Then take a step to the right using both your right hand and right foot, followed by your left hand and left foot. Do this two to three more times to the right, then repeat in the opposite direction.