QUICK SEARCH:   [advanced] Author: Keyword(s):
Home     Help     Feedback     Subscriptions     Archive     Search     Table of Contents

Help viewing high resolution images Return to article

Fig. 4. Mean peak bone strains versus body mass for the emu femur on logarithmic axes. Mean peak principal tensile and compressive strains for the (A) cranial and (B) caudal surfaces and (C) mean peak tensile axial strains for the lateral surface of the emu femur as the birds ran at a 0.40DF. Tensile strains, circles; compressive strains, squares. In A, the equations for the least-squares regression lines for the peak principal tensile and compressive strains are y=612x^0.24±0.16 (R²=0.50, N=14) and y=–482x^{–0.29±0.17} (R²=0.55), respectively. In B, for principal tension, y=304x^0.39±0.28 (R²=0.48, N=11) and principal compression, y=–399x^{–0.36±0.28} (R²=0.43). In C, for axial tension, y=721x^{–0.06±0.47} (R²=0.003, N=12). In A and B, the slopes and 95%CIs of the power lines for the principal compressive strains were taken on the absolute values of these strains, but plotted in the figure on the negative compressive values for clarity. As multiple trials at this DF were not collected for all birds, error bars have been omitted for consistency.

Return to article