吉林大学学报(工学版) ›› 2014, Vol. 44 ›› Issue (6): 1692-1697.doi: 10.13229/j.cnki.jdxbgxb201406024

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Foot-ground contact analysis of German shepherd dog in walking, trotting and jumping gaits

QIAN Zhi-hui1, MIAO Huai-bin1, Shang Zhen2, REN Lu-quan1   

  1. 1.Key Laboratory of Bionic Engineering, Ministry of Education, Jilin University, Changchun 130022, China;
    2.College of Automotive Engineering, Jilin University, Changchun 130022,China
  • Received:2013-11-14 Online:2014-11-01 Published:2014-11-01

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Abstract: The foot-ground contact biomechanics of German Shepherd Dog (GSD) in normal walking, trotting and jumping gaits were investigated using a pressure plate system. The peak of the vertical ground reaction force and the dynamic foot pressure distribution on the paw pad of right-forefoot was measured and analyzed. It was found that the peak ground reaction force acting on the forefoot was about 0.69 times of the weight of GSD in walking gait; while in jumping gait, the reaction force increased to 1.43 times of weight of GSD. Meantime, along with the increase in the vertical foot-ground impact force, GSD made adjustment of its foot contact region for force bearing. In walking gait, the contact region was the 4th and 5th toes, and in jumping gait the contact region was shifted to the 3rd, 4th toes and metacarpal. Such adjustment is of great benefit to cushion and impact energy absorption.

Key words: engineering bionics, canine animal, gait, foot pressure, buffering, biomechanics

CLC Number: 

  • TB17
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