Head Position in Freestyle… Have Your Cake and Eat It Too
While swimming freestyle, the positions of least frontal drag do not necessarily correlate with the positions of maximum propulsive power. Head position is just one example of this conflict. When the head is in alignment with the body and the spine is straighter, the least frontal drag is encountered. Yet, to maximize the power of the underwater pull, the lower back should be arched some, which results in an elevation of the head.