This paper presents a novel robot leg design. The leg is powered by a DC motor which drives elastic tendons to turn a foot. The tendons store elastic energy just as in nature. Preliminary experimental results show the leg has a well-defined resonance which can be exploited to produce hopping. We also offer a comparison of our leg with the cat hindlimb. Eventually, the leg will be part of a quadrupedal robot.
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Berkemeier et al. (2002) studied this question.
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