Leg stiffness adjustment for a range of hopping frequencies in humans.

@article{Hobara2010LegSA,
  title={Leg stiffness adjustment for a range of hopping frequencies in humans.},
  author={Hiroaki Hobara and Koh Inoue and Tetsuro Muraoka and Kohei Omuro and Masanori Sakamoto and Kazuyuki Kanosue},
  journal={Journal of biomechanics},
  year={2010},
  volume={43 3},
  pages={506-11}
}
The purpose of the present study was to determine how humans adjust leg stiffness over a range of hopping frequencies. Ten male subjects performed in place hopping on two legs, at three frequencies (1.5, 2.2, and 3.0Hz). Leg stiffness, joint stiffness and touchdown joint angles were calculated from kinetic and/or kinematics data. Electromyographic activity (EMG) was recorded from six leg muscles. Leg stiffness increased with an increase in hopping frequency. Hip and knee stiffnesses were… CONTINUE READING

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