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Individual change (%) of average power in 2,000 m rowing ergometer test (P2,000 m) in 14 highly trained competitive U23 rowers. Horizontal dashed line indicates Polarization-Index of 2, which is defined being the cut off for polarized training intensity distribution (see text for details). Vertical dashed line indicates 1.3%, being the estimated error of measurement for P2,000 m according to Soper and Hume (2004).
