Countermovement strategy changes with vertical jump height to accommodate feasible force constraints

Cited 9 time in webofscience Cited 0 time in scopus
  • Hit : 544
  • Download : 0
DC FieldValueLanguage
dc.contributor.authorKim, Seyoungko
dc.contributor.authorPark, Sukyungko
dc.contributor.authorChoi, Sangkyuko
dc.date.accessioned2015-04-06T05:43:15Z-
dc.date.available2015-04-06T05:43:15Z-
dc.date.created2014-11-24-
dc.date.created2014-11-24-
dc.date.created2014-11-24-
dc.date.issued2014-09-
dc.identifier.citationJOURNAL OF BIOMECHANICS, v.47, no.12, pp.3162 - 3168-
dc.identifier.issn0021-9290-
dc.identifier.urihttp://hdl.handle.net/10203/194688-
dc.description.abstractIn this study, we developed a curve-fit model of countermovement dynamics and examined whether the characteristics of a countermovement jump can be quantified using the model parameter and its scaling; we expected that the model-based analysis would facilitate an understanding of the basic mechanisms of force reduction and propulsion with a simplified framework of the center of mass (CoM) mechanics. Ten healthy young subjects jumped straight up to five different levels ranging from approximately 10% to 35% of their body heights. The kinematic and kinetic data on the CoM were measured using a force plate system synchronized with motion capture cameras. All subjects generated larger vertical forces compared with their body weights from the countermovement and sufficiently lowered their CoM position to support the work performed by push-off as the vertical elevations became more challenging. The model simulation reasonably reproduced the trajectories of vertical force during the countermovement, and the model parameters were replaced by linear and polynomial regression functions in terms of the vertical jump height. Gradual scaling trends of the individual model parameters were observed as a function of the vertical jump height with different degrees of scaling, depending on the subject. The results imply that the subjects may be aware of the jumping dynamics when subjected to various vertical jump heights and may select their countermovement strategies to effectively accommodate biomechanical constraints, i.e., limited force generation for the standing vertical jump.-
dc.languageEnglish-
dc.publisherELSEVIER SCI LTD-
dc.subjectSTRETCH-SHORTENING CYCLE-
dc.subjectPERFORMANCE-
dc.subjectENERGY-
dc.titleCountermovement strategy changes with vertical jump height to accommodate feasible force constraints-
dc.typeArticle-
dc.identifier.wosid000343392000047-
dc.identifier.scopusid2-s2.0-84940286469-
dc.type.rimsART-
dc.citation.volume47-
dc.citation.issue12-
dc.citation.beginningpage3162-
dc.citation.endingpage3168-
dc.citation.publicationnameJOURNAL OF BIOMECHANICS-
dc.identifier.doi10.1016/j.jbiomech.2014.06.013-
dc.contributor.localauthorPark, Sukyung-
dc.contributor.nonIdAuthorKim, Seyoung-
dc.contributor.nonIdAuthorChoi, Sangkyu-
dc.description.isOpenAccessN-
dc.type.journalArticleArticle-
dc.subject.keywordAuthorStanding vertical jump-
dc.subject.keywordAuthorCountermovement-
dc.subject.keywordAuthorPush-off-
dc.subject.keywordAuthorDownward momentum-
dc.subject.keywordAuthorForce advantage-
dc.subject.keywordPlusSTRETCH-SHORTENING CYCLE-
dc.subject.keywordPlusPERFORMANCE-
dc.subject.keywordPlusENERGY-
Appears in Collection
ME-Journal Papers(저널논문)
Files in This Item
There are no files associated with this item.
This item is cited by other documents in WoS
⊙ Detail Information in WoSⓡ Click to see webofscience_button
⊙ Cited 9 items in WoS Click to see citing articles in records_button

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0