Table 1.

The effect of 3-months and 9-months aestivation on long bone moduli, ultimate strength, second moment of area, yield/failure energy and cross-sectional area in C. alboguttata

BonePropertyControl3 month9 monthSignificance
FemurElastic modulus (GPa)12.51±2.079.45±2.6010.27±1.87NS
Ultimate strength (MPa)328.2±45.9265.6±25.4297.5±47.1NS
Yield energy (mJ)5.35±0.794.98±0.384.94±1.11NS
Failure energy (mJ)8.37±1.347.76±0.758.97±1.36NS
Yield displacement (m)1.07×10-3±6.65×10-51.12×10-3±4.51×10-51.10×10-3±5.98×10-5NS
Second moment of area (m4)1.54×10-13±1.12×10-141.89×10-13±2.33×10-141.97×10-13±3.56×10-14NS
Normalised cross-sectional area (mm2 cm-1)0.153±0.0070.164±0.0060.181±0.011NS
TibiaElastic modulus (GPa)8.81±0.4610.56±0.869.19±0.37NS
Ultimate strength (MPa)253.8±15.4303.6±19.0256.5±11.7NS
Yield energy (mJ)4.24±0.554.96±0.254.50±0.45NS
Failure energy (mJ)7.57±1.158.80±0.747.40±1.32NS
Yield displacement (m)1.10×10-3±3.22×10-51.09×10-3±2.82×10-51.10×10-3±6.93×10-5NS
Second moment of area (m4)1.81×10-13±1.05×10-141.80×10-13±1.60×10-142.02×10-13±2.31×10-14NS
Normalised cross-sectional area (mm2 cm-1)0.188±0.0090.167±0.0070.201±0.014NS
  • NS, no significant difference between treatment groups.