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. Author manuscript; available in PMC: 2019 Sep 1.
Published in final edited form as: Med Eng Phys. 2018 Jul 27;59:15–20. doi: 10.1016/j.medengphy.2018.04.024

Fig. 1.

Fig. 1.

Example images showing patellar tendon buckling in knee extension, and the unbuckling of the tendon during flexion. Individuals with a larger distal buckling angle spend more of their range of motion unbuckling rather than lengthening.