Lance Cpl. Amber Martinez executes a ‘side stroke’ during the testing portion of the Advanced Swim Qualification Course at Ramer Hall, Quantico, Virginia, April 11, 2014. (Cpl. Christina O'Neil/U.S.
Combining a strong kick and streamlined glide is the key to fixing your issue with efficiency and speed in the pool. There are two propulsion methods for swimming: the arm pulls and the kick.
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