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. 2011 Jun 8;6(6):e20797. doi: 10.1371/journal.pone.0020797

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Methling et al.

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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A. Oxygen consumption (MO₂, mgO₂ kg⁻¹ h⁻¹) and B. Cost of transport (COT, mgO₂ kg⁻¹ km⁻¹) as a function of swimming speed (U, Bl s⁻¹) swimming with and without a PSAT dummy. Swim trials without (control) and with a tag (trials 2, 3) were performed on the same individual (N = 9). Lines are regression lines (refer to Table 1 for regression values). An asterisk denotes significant difference between control and tagged condition (Repeated measures ANOVA, p<0.05). Data are presented as mean±SD. C. Additional cost of tag on COT as a function of swimming speed (U, Bl s⁻¹). Line is regression line of the average value of trials 2 and 3.