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. 2020 Feb 28;8:111. doi: 10.3389/fbioe.2020.00111

FIGURE 4.

FIGURE 4

(A) Constrained flexion and extension of low stiffness finger with 3D printed baseline semi-circular SECA. (B) Characteristic of the model low and high stiffness fingers. (C) Constrained bending pressure–angle relationship of baseline semi-obround and semi-circular SECAs on high and low stiffness fingers. (D) Estimated stiffness of MCP and PIP joints and the corresponding angles measured on high and low stiffness fingers with baseline semi-obround and semi-circular SECAs.