Therefore, the rod experience zero axial strain but non-zero stress ... The blue shading on the rod indicates the level of compressive stress.

If the Poisson's ratio of the material if positive, then tensile/compressive strains in the x-direction produce compressive/tensile strains in the y- and z-directions, as shown below. Negative Poisson ...

Results: Axial compression strains (p<0.0001), tension ... Conclusions: On the basis of lower in vivo strains and strain rates, treadmill runners are at lower risk of developing tibial stress ...