The freestyle stroke, also known as the “catch-up” freestyle stroke, is a technique in which one arm completes the stroke and almost returns to the starting position before the other arm catches up. This breathing style can help you support fatigue for a number of reasons: 1. **Reduced energy consumption**: When the arms wait for each other, each arm has a longer rest period between strokes. This helps reduce continuous energy consumption, helping you maintain strength longer during the flight.

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