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Table 3.

Factor analysis and how variables load on each significant axis after factor rotation

Factor 1Factor 2
% Variance explained 67.0% 21.0% 
Minimum angle during stroke (deg.) 0.673 –0.726 
Maximum angle during stroke (deg.) 0.973 –0.189 
Maximum fin depression (cm) 0.801 –0.212 
Maximum fin elevation (cm) 0.868 0.470 
Maximum posterior fin extension (cm) 0.071 0.829 
Maximum anterior fin extension (cm) –0.873 0.485 
Difference in ventral fin area: thrust–recovery (cm20.884 –0.122 
Stroke cycle duration (s) –0.944 0.318 
% Stroke duration to maximum fin elevation –0.661 0.685 
% Stroke duration to maximum posterior fin extension –0.251 0.850 
Factor 1Factor 2
% Variance explained 67.0% 21.0% 
Minimum angle during stroke (deg.) 0.673 –0.726 
Maximum angle during stroke (deg.) 0.973 –0.189 
Maximum fin depression (cm) 0.801 –0.212 
Maximum fin elevation (cm) 0.868 0.470 
Maximum posterior fin extension (cm) 0.071 0.829 
Maximum anterior fin extension (cm) –0.873 0.485 
Difference in ventral fin area: thrust–recovery (cm20.884 –0.122 
Stroke cycle duration (s) –0.944 0.318 
% Stroke duration to maximum fin elevation –0.661 0.685 
% Stroke duration to maximum posterior fin extension –0.251 0.850 

Values in bold indicate strong loading on the axes

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