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. 2020 Apr 21;15(4):e0232035. doi: 10.1371/journal.pone.0232035

Table 4. Summary of performance data.

CB, BT and Cp indicate cutback, bottom turn, and power coefficients, respectively. Yaw, roll and pitch rotation rates are calculated from their angles divided by duration. Mean wave power, rotational powers, power coefficients and total power over inertia are calculated using Eqs 1, 3, 5 and 6, respectively. Trace CB power and CB speed were measured by the TraceUpTM datalogger. Raw data is found in S3 File.

Participant Fins
Performance means 1 2 3 4 (WCT) Control RW p-value
Trace CB power 2.6±0.1 4.8±0.5 5.2±0.2 6.0±0.3 4.0±0.2 4.0±0.2 0.625
CB speed (m/s) 5.7±0.1 7.4±0.3 6.8±0.1 6.9±0.2 6.4±0.1 6.3±0.1 0.873
CB yaw rate (rad/s) 2.2±0.1 2.8±0.2 3.0±0.1 3.2±0.1 2.6±0.1 2.7±0.1 0.143
CB roll rate (rad/s) 0.9±0.03 1.3±0.1 1.3±0.1 1.4±0.1 1.1±0.04 1.1±0.05 0.094
CB pitch rate (rad/s) 0.6±0.03 0.8±0.1 0.8±0.04 0.9±0.1 0.7±0.03 0.7±0.04 0.005
CB yaw power (W) 70±5 164±34 222±19 228±37 140±14 163±17 0.035
CB roll power (W) 14±2 43±13 47±5 80±26 28±3 36±5 0.011
CB pitch power (W) 7±1 18±6 23±4 31±9 13±2 18±4 0.005
Cp CB 0.09±0.01 0.09±0.02 0.13±0.01 0.15±0.02 0.11±0.01 0.12±0.01 0.042
BT initial speed (m/s) 6.2±0.1 8.8±0.3 7.7±0.2 7.4±0.2 7.1±0.1 7.1±0.1 0.512
BT yaw rate (rad/s) 1.7±0.05 1.7±0.1 1.9±0.1 1.9±0.1 1.8±0.05 1.8±0.06 0.631
BT roll rate (rad/s) 0.9±0.03 0.8±0.1 0.9±0.03 1.06±0.05 0.9±0.03 0.9±0.03 0.371
BT yaw power (W) 59±4 62±9 99±6 74±6 74±4 83±6 0.023
BT roll power (W) 21±4 18±7 33±5 41±9 25±4 28±5 0.23
Cp BT 0.06±0.003 0.03±0.004 0.05±0.003 0.05±0.004 0.05±0.003 0.05±0.003 0.145
Total power (W) 170±10 302±53 419±29 444±77 278±20 326±27 0.005
Total Cp 0.35±0.02 0.30±0.05 0.43±0.03 0.45±0.05 0.37±0.02 0.40±0.03 0.076
Total Power / Inertia (s-3) 8.3±0.5 10.6±1.9 13.6±0.9 17.1±3.0 10.5±0.7 11.7±0.9 0.026