Keep that feeling of perfect alignment as you turn to a horizontal position. This newer, straighter line will make your body roll more streamlined and your stroke more efficient. Better Streamline Fix your posture and you'll go farther with less effort . Nothing puts on the brakes faster than a concave rear end. The solution to better alignment of the posterior is to develop your abdominal muscles which will pull in your lower back and posterior muscles.
Good posture translates into good streamlining.
Turn Breathing Time your breathing to help you make the most of your flip turns. Take it at your own pace and tolerance to extend your endurance and breathing capacity. The results will show after a flip-turn, when you take in all the air you need and don't have to break early. Lenny Krayzelburg uses the same warm-up routine, even during taper. Try his routine and mold it to your own needs and abilities.