Table 1.

Mann–Whitney U results for comparisons of peak femoral strains during thrust versus recovery phases of swimming in T. scripta. Values are mean ± s.e. pT, principal tensile strain; pC, principal compressive strain; φT, angle of principal tensile strain to femoral long axis.

animalgauge locationstrain typeNthrust (µε)recovery (µε)|Z|p
TS01anteriorlongitudinal52−169.8 ± 100.2−119.6 ± 84.72.750.0060*
ventrallongitudinal11−176.6 ± 72.9−128.9 ± 60.92.630.0086*
posteriorlongitudinal52−118.5 ± 55.3−126.4 ± 83.60.170.8670
TS03anteriorlongitudinal12998.2 ± 74.648.2 ± 32.65.69<0.0001*
posteriorlongitudinal129102.9 ± 53.548.8 ± 36.08.83<0.0001*
TS04anteriorlongitudinal71124.7 ± 120.651.2 ± 45.34.90<0.0001*
posteriorlongitudinal71135.7 ± 85.876.5 ± 42.88.83<0.0001*
TS05anteriorlongitudinal47−22.7 ± 9.4−13.9 ± 10.70.450.6528
ventrallongitudinal47−105.2 ± 39.0−83.9 ± 39.72.190.0280*
posteriorlongitudinal4784.1 ± 15.433.1 ± 11.33.100.0019*
posteriorpT47136.1 ± 19.976.9 ± 5.93.870.0001*
posteriorpC47−84.4 ± 7.3−60.4 ± 4.12.610.0091*
posteriorφTa47−3.1 ± 1.2−1.7 ± 0.80.940.3484
posteriorshear4753.7 ± 8.425.7 ± 4.42.580.0099*
TS07anteriorlongitudinal54−101.5 ± 32.8−21.9 ± 35.01.340.1794
ventrallongitudinal54−49.3 ± 15.22.5 ± 19.12.020.0429*
posteriorlongitudinal5458.5 ± 4.615.1 ± 6.15.51<0.0001*
posteriorpT5471.4 ± 3.746.8 ± 3.14.97<0.0001*
posteriorpC54−38.9 ± 2.9−36.5 ± 2.20.490.6252
posteriorφTa54−9.1 ± 1.9−3.2 ± 1.92.640.0083*
posteriorshear5450.5 ± 4.726.9 ± 3.63.910.0001*
  • aUnits for φT in degrees (°).

  • *p ≤ 0.05.