Analysis of the Loaded Gait Subjected to the Trunk Flexion Change
In the paper, the energetic features of the loaded gait
are newly analyzed depending on the trunk flexion change. To
investigate the loaded gait, walking experiments are performed for five
subjects and, the ground reaction forces and kinematic data are
measured. Based on these information, we compute the impulse,
momentum and mechanical works done on the center of body mass,
through the trunk flexion change. As a result, it is shown that the trunk
flexion change does not affect the impulses and momentums during
the step-to-step transition as well. However, the direction of the
pre-collision momentum does change depending on the trunk flexion
change, which is degenerated just after (or during) the collision period.
[1] Yeom, Jin, "Finite Collision Model for the Double Support Phase of
Human Walking", M.S. Thesis, Korea Advanced Institute of Science and
Technology, Daejeon, Republic of Korea, 2010.
[2] Yeom, Jin, "A gravitational impulse model predicts collision impulse and
mechanical work during a step-to-step transition", Journal of
Biomechanics, vol. 44, pp. 59-67, 2011.
[3] T. McGeer, "Passive dynamic walking," The International Journal of
Robotics Research, vol. 9, pp. 62, 1990.
[4] M. Garcia, A. Chatterjee, A. Ruina, and M. Coleman, "The simplest
walking model: Stability, complexity, and scaling," ASME Journal of
Biomechanical Engineering, 1998.
[5] A. D. Kuo, "Energetics of actively powered locomotion using the
simplest walking model," Journal of Biomechanical Engineering, vol.
124, pp. 113, 2002.
[6] J. M. Donelan, R. Kram, and A. D. Kuo, "Mechanical work for
step-to-step transitions is a major determinant of the metabolic cost of
human walking," Journal of Experimental Biology, vol. 205, pp.
3717-3727, 2002.
[7] A. D. Kuo, J. M. Donelan, and A. Ruina, "Energetic consequences of
walking like an inverted pendulum: step-to-step transitions," Exerc Sport
Sci Rev, vol. 33, pp. 88-97, 2005.
[8] P. G. Adamczyk and A. D. Kuo, "Redirection of center-of-mass velocity
during the step-to-step transition of human walking," J Exp Biol, vol. 212,
pp. 2668-78, 2009.
[9] F. J. Diedrich and W. H. Warren, Jr., "Why change gaits? Dynamics of
the walk-run transition," J Exp Psychol Hum Percept Perform, vol. 21, pp.
183-202, 1995.
[10] L. Li and J. Hamill, "Characteristics of the vertical ground reaction force
component prior to gait transition," Res Q Exerc Sport, vol. 73, pp.
229-37, 2002.
[11] S. J. Cuccurullo, editor, Physical Medicine and Rehabilitat
[1] Yeom, Jin, "Finite Collision Model for the Double Support Phase of
Human Walking", M.S. Thesis, Korea Advanced Institute of Science and
Technology, Daejeon, Republic of Korea, 2010.
[2] Yeom, Jin, "A gravitational impulse model predicts collision impulse and
mechanical work during a step-to-step transition", Journal of
Biomechanics, vol. 44, pp. 59-67, 2011.
[3] T. McGeer, "Passive dynamic walking," The International Journal of
Robotics Research, vol. 9, pp. 62, 1990.
[4] M. Garcia, A. Chatterjee, A. Ruina, and M. Coleman, "The simplest
walking model: Stability, complexity, and scaling," ASME Journal of
Biomechanical Engineering, 1998.
[5] A. D. Kuo, "Energetics of actively powered locomotion using the
simplest walking model," Journal of Biomechanical Engineering, vol.
124, pp. 113, 2002.
[6] J. M. Donelan, R. Kram, and A. D. Kuo, "Mechanical work for
step-to-step transitions is a major determinant of the metabolic cost of
human walking," Journal of Experimental Biology, vol. 205, pp.
3717-3727, 2002.
[7] A. D. Kuo, J. M. Donelan, and A. Ruina, "Energetic consequences of
walking like an inverted pendulum: step-to-step transitions," Exerc Sport
Sci Rev, vol. 33, pp. 88-97, 2005.
[8] P. G. Adamczyk and A. D. Kuo, "Redirection of center-of-mass velocity
during the step-to-step transition of human walking," J Exp Biol, vol. 212,
pp. 2668-78, 2009.
[9] F. J. Diedrich and W. H. Warren, Jr., "Why change gaits? Dynamics of
the walk-run transition," J Exp Psychol Hum Percept Perform, vol. 21, pp.
183-202, 1995.
[10] L. Li and J. Hamill, "Characteristics of the vertical ground reaction force
component prior to gait transition," Res Q Exerc Sport, vol. 73, pp.
229-37, 2002.
[11] S. J. Cuccurullo, editor, Physical Medicine and Rehabilitat
@article{"International Journal of Mechanical, Industrial and Aerospace Sciences:60990", author = "Ji-il Park and Donghan Koo and Hyungtae Seo and Jihyuk Park and Heewon Park and Sukyung Park and Kyung-Soo Kim and and
Soohyun Kim", title = "Analysis of the Loaded Gait Subjected to the Trunk Flexion Change", abstract = "In the paper, the energetic features of the loaded gait
are newly analyzed depending on the trunk flexion change. To
investigate the loaded gait, walking experiments are performed for five
subjects and, the ground reaction forces and kinematic data are
measured. Based on these information, we compute the impulse,
momentum and mechanical works done on the center of body mass,
through the trunk flexion change. As a result, it is shown that the trunk
flexion change does not affect the impulses and momentums during
the step-to-step transition as well. However, the direction of the
pre-collision momentum does change depending on the trunk flexion
change, which is degenerated just after (or during) the collision period.", keywords = "Loaded gait, collision, impulse, gravity, heel strike,
push-off, gait analysis.", volume = "7", number = "1", pages = "111-5", }