Leg stiffness from landing methods of hopping

J. J. Lee, J. Y. Kim, H. Y. Lee, Y. H. Kim

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

During hopping and jumping, our legs exhibit characteristics similar to those of a spring. When humans hop in place or run forward, they adjust leg stiffness to accommodate changes in stride frequency or surface stiffness. The spring-mass-model has been often used to describe this type of movements, i.e. hopping, which consists of a body mass supported by a spring. Leg stiffness, therefore, can be defined as the ratio of ground reaction force (GRF) to center of mass (COM).These types of stiffness have been considered as critical factors in terms of balance maintenance, shock absorption mechanism, etc. The purpose of the present study was to determine how humans adjust leg stiffness over the difference between soft landing and stiff landing. Stiffness of soft landing was compared with that of stiff landing.

Original languageEnglish
Title of host publication6th World Congress of Biomechanics, WCB 2010 - In Conjunction with 14th International Conference on Biomedical Engineering, ICBME and 5th Asia Pacific Conference on Biomechanics, APBiomech
Pages33-35
Number of pages3
DOIs
StatePublished - 2010
Externally publishedYes
Event6th World Congress of Biomechanics, WCB 2010 - In Conjunction with 14th International Conference on Biomedical Engineering, ICBME and 5th Asia Pacific Conference on Biomechanics, APBiomech - Singapore, Singapore
Duration: Aug 1 2010Aug 6 2010

Publication series

NameIFMBE Proceedings
Volume31 IFMBE
ISSN (Print)1680-0737

Conference

Conference6th World Congress of Biomechanics, WCB 2010 - In Conjunction with 14th International Conference on Biomedical Engineering, ICBME and 5th Asia Pacific Conference on Biomechanics, APBiomech
Country/TerritorySingapore
CitySingapore
Period08/1/1008/6/10

Keywords

  • Com displacement
  • Ground reaction force
  • Hopping
  • Leg stiffness
  • Soft landing
  • Spring-mass-model
  • Stiff landing

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