Start in a push-up position with the hands shoulder-width apart and the legs straight out directly behind the body about hip-width apart, keeping the knees bent. Push the toes of the left foot into the floor while squeezing the right thigh and glute. Move the left hand and the right leg forward to start crawling. Alternate the arm and leg movements while keeping the back straight and the hips and shoulders at the same height. Crawl for a desired distance.