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Competitive swimming training balances volume and intensity across a periodized calendar, typically dividing the season into base-building, intensity-focused, and tapering phases. During base-building, swimmers accumulate high-yardage, moderate-intensity sessions designed to build aerobic capacity and stroke efficiency without excessive strain. As competitions approach, training shifts toward shorter, race-specific efforts at near-maximal intensity, sharpening the neuromuscular patterns needed for peak performance. In the final weeks before a major event, coaches implement a taper, deliberately reducing training volume while maintaining some intensity, allowing accumulated fatigue to dissipate so that swimmers reach competition rested yet still sharp. Research indicates that tapering incorrectly—either too abruptly or for too long—can cause swimmers to lose the very fitness adaptations the season's training was designed to build.