this is the continuation of “How to Swim Faster?” from the first part. If you just dropped in, please go to “How to Swim Faster” Part 1
Principle #4: Swimming More on Your Sides
The first way to improve propulsion is to roll more from side to side with each arm stroke. Rolling more on your sides allows you to better engage the large back muscles in addition to the shoulder muscles. However, spending more time on your side is unusual at first and needs some getting used to.
Principle #5: Using Your Core
This is another secret of how to swim faster. You should engage the large back, hip and torso muscles while rolling from side to side. The synergy between your core muscles and arm muscles allows you to apply more force to your swim stroke.
It is a little bit like a baseball pitcher when he throws the ball: first his body twists backward, then his hips initiate a rotation forward which is channeled through his upper body into his shoulder, arm, hand and finally into the ball, with an acceleration at each step.
Once you have integrated this technique, you will be able to swim longer and faster and tire less quickly, as your core muscles have more endurance than the ones in your shoulders and arms.
Principle #6: Anchoring Your Arms
This is the last piece of the puzzle on how to swim faster with less effort. Before applying any force on your propulsive arm, you need to make sure that your hand and forearm are aligned and facing backward. You can then effectively move your arm backward like big paddle.
This swimming technique is often called the “high elbow catch” in the freestyle stroke because you need to keep your elbow high in relationship to your wrist to be able to successfully do this.