Lie on your front on a firm surface, with your hands under your shoulders, palms down. Look up and push up, lifting your head and shoulders up with your arms. Keep your hips on the floor. Hold for a count of 5 and then gently lower yourself back down.

To perform an isometric push-up hold, you set up your body the same way you would for a regular push-up, engage your core, and then lower your chest toward your hands until you reach the lowest position you can control. (This should be one or two inches above the ground.)