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Fig. 7. (A) Representative stress–strain curve of a single distal thread
cycled to incrementally increasing strain values from 10% to 70%. Yield, as
seen in cycles to 20, 30 and 40%, is followed by a loss in stiffness (stress
softening) in the subsequent cycle. (B) Percentage loss in modulus plotted as
a function of the strain that caused the loss. Values are means ±
s.e.m.; N=10. Most stress softening is occurring between 10% and 40%
strain.