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Figure 1


Fig. 1. Representative strain recordings (simultaneous) from three gauge locations on the cooter femur during three consecutive walking steps. Left: principal strains, angle of principal tensile strains from the femoral long axis ({phi}t) and shear strains from ROS gauge recordings. Right: longitudinal strains from `dorsal', `anterior' and `ventral' sites. Note that strain scales differ among panels to facilitate presentation. Dark gray shading highlights the stance phase (contact) for a single step at all gauge locations. Light gray shading highlights the swing phase of a stride. {epsilon}t and {epsilon}c denote tensile and compressive (red line) principal strain traces, respectively.