If you prefer being close to the ground, but are unable to do a traditional push-up, split the difference (as seen in this video)! Either lower down from a traditional plank position and finish by pushing up on your knees or lower down on your knees and push up to a traditional plank position. Both movements will help you build up to a full push-up, but breaking them up will lessen the intensity in one go. This modification is a favorite of CrossFit coach Sefton Hirsch.